Adware.Win32.Downware_0c8c597eef – Adaware

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Adware creates the following process(es):No processes have been created.The Adware injects its code into the following process(es):

%original file name%.exe:772

Mutexes

The following mutexes were created/opened:

ZonesLockedCacheCounterMutexZonesCounterMutexZonesCacheCounterMutexRasPbFileWininetProxyRegistryMutexWininetConnectionMutexWininetStartupMutexc:!documents and settings!adm!local settings!history!history.ie5!c:!documents and settings!adm!cookies!c:!documents and settings!adm!local settings!temporary internet files!content.ie5!_!MSFTHISTORY!_ShimCacheMutex

File activity

The process %original file name%.exe:772 makes changes in the file system.

The Adware creates and/or writes to the following file(s):

%Program Files%\1ClickDownload\ocmainpack.exe (598 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\accept3.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\System.dll (11 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\skip.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\inetc3.dll (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\accept1.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\save.bmp (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\decline.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\accept2.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\MainPackFA2703[1].htm (598 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\1clogo.bmp (4992 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\anon.bmp (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nse2.tmp (13665 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\accept.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\nsDialogs.dll (9 bytes)

The Adware deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\gC0 (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nso1.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp (0 bytes)

Registry activity

The process %original file name%.exe:772 makes changes in the system registry.

The Adware creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1D 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\1ClickDownload]
"LastInstall0" = "30508063"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\1ClickDownload]
"UID" = "282948265"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "99 E0 DA A7 3E 93 4D 90 E9 F0 A3 5D 68 EE 65 DD"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Desktop" = "%Documents and Settings%\%current user%\Desktop"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

The Adware modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Adware modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Adware modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Adware deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

Dropped PE files

MD5	File path
c17103ae9072a06da581dec998343fc1	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsu3.tmp\System.dll
9d8ce05f532dc7b5742831ec8a63c2d8	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsu3.tmp\inetc3.dll
c10e04dd4ad4277d5adc951bb331c777	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\nsu3.tmp\nsDialogs.dll

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

Click (here) to download and install Ad-Aware Free Antivirus.
Update the definition files.
Run a full scan of your computer.

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
Delete the original Adware file.
Delete or disinfect the following files created/modified by the Adware:
%Program Files%\1ClickDownload\ocmainpack.exe (598 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\accept3.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\System.dll (11 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\skip.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\inetc3.dll (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\accept1.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\save.bmp (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\decline.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\accept2.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\MainPackFA2703[1].htm (598 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\1clogo.bmp (4992 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\anon.bmp (2 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nse2.tmp (13665 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\WLMVCPYN\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\accept.bmp (784 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsu3.tmp\nsDialogs.dll (9 bytes)
Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	23130	23552	4.44841	0bc2ffd32265a08d72b795b18265828d
.rdata	28672	4496	4608	3.59163	f179218a059068529bdb4637ef5fa28e
.data	36864	110488	1024	3.26405	975304d6dd6c4a4f076b15511e2bbbc0
.ndata	147456	372736	0	0	d41d8cd98f00b204e9800998ecf8427e
.rsrc	520192	16592	16896	4.13874	8091b1378d82973015f802c93eb88bab

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 130
69a0a458647b3436892cf9f2f126c252
f6dfcb76ad7437d92c5afb7f0df46e1e
da0bd3c1e61660738d11b8637009704c
274a292adfe75bf2ebb7ec280e41498b
5237ce96c640fe6ac6cc74c0dcbfcaa3
2f7774bf5fd92c51f79f4ba883a3688d
19e571b63f058f8639368efa0b7e7a5d
92f168a6a50962338197ed28079023e0
eb7796e86be9bedaa30b7cfffeefe81f
02970495e406b99d8bf8e992a8ee80e8
58370f3c58561f8bfb46cf3e2f91f4b3
7bf0d359dbc0f2394d811bf4ca178d0c
6595f1898fe06bd80ec59d9ccd70bda2
9f979219e6f2be6b0d69c699192e9c98
fcb0905f624625fc4839a6a4edcb6fd4
56f587e1afeb682b0688dfcce19ebed9
c63e670ed1d501559890afdc5ccb3d56
bc4b8c6d6165113c61fb4744140a49c8
9cb467ff929aa9ea250e2501ade5f077
60ba6445ca5e44ce37f9175d5b71252a
558629b6feeb66bfdcef6c99e3c570a3
70734d89308e9da071e1e5bf18547b14
ba27f4cf2fd8becf08d48c952b1e6515
854785be31dfdacde5e34c6ed71c99a6
d9c131de8a7a673f0b3fdd82e00416d8

Network Activity

URLs

URL	IP
hxxp://data.downloadstarter.net/country.asp?st=-1&uid=282948265&tuid=3131549&sref=1CD_16_36_trze7&vmdt=\|vm\|&bld=16CJ	88.80.188.52
hxxp://files.download1click.ws/MainPackFA2703.exe	64.70.19.202

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /MainPackFA2703.exe HTTP/1.1

User-Agent: NSIS_Inetc (Mozilla)

Host: files.download1click.ws

Connection: Keep-Alive

Cache-Control: no-cache

HTTP/1.1 200

Server: nginx/1.6.3

Date: Tue, 22 Mar 2016 09:47:26 GMT

Content-Type: text/html; charset=ISO-8859-1

Content-Length: 598

Connection: keep-alive

<html>.<head>..<title>WEBSITE.WS - Your Internet Address For Life™</title>.</head>.<frameset rows="100%,*" border="0" frameborder="0">..<frame src="hXXp://website.ws/kvmlm2/index.dhtml?sponsor=wildcardform8&template=13&chk=1&domain=download1click.ws" scrolling="auto">..<noframes>...<p> Your browser does not support frames. Continue to <a href="hXXp://website.ws/kvmlm2/index.dhtml?sponsor=wildcardform8&template=13&chk=1&domain=download1click.ws">hXXp://website.ws/kvmlm2/index.dhtml?sponsor=wildcardform8&template=13&chk=1&domain=download1click.ws</a>.</p>..</noframes>.</frameset>.</html>HTTP/1.1 200..Server: nginx/1.6.3..Date: Tue, 22 Mar 2016 09:47:26 GMT..Content-Type: text/html; charset=ISO-8859-1..Content-Length: 598..Connection: keep-alive..<html>.<head>..<title>WEBSITE.WS - Your Internet Address For Life™</title>.</head>.<frameset rows="100%,*" border="0" frameborder="0">..<frame src="hXXp://website.ws/kvmlm2/index.dhtml?sponsor=wildcardform8&template=13&chk=1&d..

Map

The Adware connects to the servers at the folowing location(s):

Strings from Dumps

%original file name%.exe_772:

.text

`.rdata

@.data

.ndata

.rsrc

uDSSh

.DEFAULT\Control Panel\International

Software\Microsoft\Windows\CurrentVersion

GetWindowsDirectoryA

KERNEL32.dll

ExitWindowsEx

USER32.dll

GDI32.dll

SHFileOperationA

ShellExecuteA

SHELL32.dll

RegEnumKeyA

RegCreateKeyExA

RegCloseKey

RegDeleteKeyA

RegOpenKeyExA

ADVAPI32.dll

COMCTL32.dll

ole32.dll

VERSION.dll

verifying installer: %d%%

unpacking data: %d%%

... %d%%

hXXp://nsis.sf.net/NSIS_Error

~nsu.tmp

%u.%u%s%s

RegDeleteKeyExA

%s=%s

*?|/":

CUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsu3.tmp\nsDialogs.dll

ectly,15_Eboeken_Karin_Slaughter.exe,nl

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsu3.tmp\nsDialogs.dll

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nsu3.tmp

zbX

=I}.Du7

i.PpB

"M%dN

Vh.vN

Keym

WINDOWS

skip.bmp", i 0, i 0, i 0, i 0x2000|0x0010) i.s

,15_Eboeken_Karin_Slaughter.exe,nl

1048780

iles\1ClickDownload\1ClickDownloader.exe

ZWJZLMJKI4FSJNC2PHRAQYH6W4R4ZVX&note=1clickdownloader_is_NOT_downloading_any_file_directly,15_Eboeken_Karin_Slaughter.exe,nl

282948265

19759910

ef67709d9532291efe74ce10.exe

NC2PHRAQYH6W4R4ZVX&note=1clickdownloader_is_NOT_downloading_any_file_directly,15_Eboeken_Karin_Slaughter.exe,nl

2829482

06406250

1704262

1342506070

ownload.sweetpacks.com/simsdm/bundle/

ram Files\Internet Explorer\iexplore.exe

n_Karin_Slaughter.exe

001.5512

c:\%original file name%.exe

%Documents and Settings%\%current user%\Desktop

%Program Files%\1ClickDownload

u3.tmp

%original file name%.exe

CUME~1\"%CurrentUserName%"\LOCALS~1\Temp\nso1.tmp

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\

hXXp://files.download1click.ws/MainPackFA2703.exe

hXXp://files.download1click.ws/gzip2.exe

hXXp://data.downloadstarter.net/

hXXp://files.download1click.ws/ARURUSetup.exe

hXXp://files.download1click.ws/ARUARSetup.exe

hXXp://files.download1click.ws/BTB0612.exe

hXXp://cdn.download.sweetpacks.com/simsdm/bundle/BundleSweetIMSetup.exe

hXXp://files.download1click.ws/FmoodsV21.exe

hXXp://files.download1click.ws/IminentSetup5.exe

hXXp://files.download1click.ws/.exe

hXXp://files.download1click.ws/weatherbugsetup.msi

hXXp://files.download1click.ws/IWantThisSetupRS.exe

hXXp://files.download1click.ws/ciuvoSetup.exe

hXXp://files.download1click.ws/incredibar_install3.exe

hXXp://download.sterkly.com/yontoo-c4.exe

hXXp://download.sterkly.com/yontoo-c2.exe

hXXp://download.sterkly.com/yontoo-b2.exe

hXXp://download.sterkly.com/yontoo-c3.exe

hXXp://download.sterkly.com/yontoo-c5.exe

hXXp://files.download1click.ws/GophotoExtSetup.exe

hXXp://files.download1click.ws/OneClickExt1_filter03.exe

hXXp://files.download1click.ws/OneClickExt1_filter13.exe

ocmainpack.exe

Inetc3 (Mozilla; FW 4; WinNT 5.1; msi 3.1.4001.5512; dbw ie; yo ;)

Software\Microsoft\Windows\CurrentVersion\Uninstall\1ClickDownload

873071679

1310970

1048906

1114390

3131549

trze7,magnet:?xt=urn:btih:RZWJZLMJKI4FSJNC2PHRAQYH6W4R4ZVX&note=1clickdownloader_is_NOT_downloading_any_file_directly,15_Eboeken_Karin_Slaughter.exe,nl

1179894

1179886

-1845164791

-2012937513

-435878885

1704228

1573146

537199696

1507538

1507518

1835232

1507522

SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\

2030698948

1477051454

1275724832

2114585872

453641394

1762264094

-385219891

252314312

-1626733924

1225393333

-2012609457

15_Eboeken_Karin_Slaughter.exe

30508063

VVV.oneclickdownloader.com

sbiectrl.exe

vmtoolsd.exe

prl_cc.exe

coherence.exe

VirtualBox.exe

VBoxSVC.exe

DrWeb

%Program Files%\1ClickDownload\15_Eboeken_Karin_Slaughter.magnet

)-.Yln

Nullsoft Install System v2.46

%original file name%.exe_772_rwx_10004000_00001000:

callback%d

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps