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Trojan.NSIS.StartPage_c6ca87bc34


not-a-virus:AdWare.Win32.AdLoad.wvdh (Kaspersky), Trojan.NSIS.StartPage.FD, mzpefinder_pcap_file.YR (Lavasoft MAS)Behaviour: Trojan, Adware

The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary

MD5: c6ca87bc34a76c06640d4647b5d30681

SHA1: 250322c4abf9f144bab5ee001f71b76f36d1ecaf

SHA256: 42f9522facf0ceacf4c2c142ab031c617189f700f6b5c6618d15a988789cb29c

SSDeep: 98304:UEuZ4a4QzNXW1eOermsoExzWAs/dCK0iB9wzshSg:9uxzVWhe4KqAs/dT0iBmzshSg

Size: 5065944 bytes

File type: EXE

Platform: WIN32

Entropy: Packed

PEID: UPolyXv05_v6

Company: no certificate found

Created at: 2009-12-06 00:50:41

Analyzed on: Windows7 SP1 32-bit

Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

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

%original file name%.exe:2712

Mutexes

The following mutexes were created/opened:No objects were found.

File activity

The process %original file name%.exe:2712 makes changes in the file system.


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

C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\JYNOWECL\agent[1].exe (120919 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\DLLWebCount2.dll (80687 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\KillProcDLL.dll (2435 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\INetC.dll (46 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\25FDO7QC\client[1].exe (214346 bytes)
C:\Users\"%CurrentUserName%"\AppData\Roaming\Jabra\Jabra.exe (227200 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\GetLoadCaption.dll (81083 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\NSISList.dll (2457 bytes)
C:\Users\"%CurrentUserName%"\AppData\Roaming\Jabra\JabraAgent.exe (128293 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\nsRandom.dll (433 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\System.dll (23 bytes)

The Trojan deletes the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsm403A.tmp (0 bytes)

Registry activity

The process %original file name%.exe:2712 makes changes in the system registry.


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

[HKLM\SOFTWARE\Microsoft\Tracing\c6ca87bc34a76c06640d4647b5d30681_RASAPI32]
"EnableConsoleTracing" = "0"
"FileTracingMask" = "4294901760"
"MaxFileSize" = "1048576"

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

[HKLM\SOFTWARE\Microsoft\Tracing\c6ca87bc34a76c06640d4647b5d30681_RASAPI32]
"FileDirectory" = "%windir%\tracing"
"EnableFileTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\c6ca87bc34a76c06640d4647b5d30681_RASMANCS]
"EnableFileTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\c6ca87bc34a76c06640d4647b5d30681_RASAPI32]
"ConsoleTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Tracing\c6ca87bc34a76c06640d4647b5d30681_RASMANCS]
"FileDirectory" = "%windir%\tracing"
"FileTracingMask" = "4294901760"
"MaxFileSize" = "1048576"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "46 00 00 00 3C 00 00 00 09 00 00 00 00 00 00 00"

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

[HKLM\SOFTWARE\Microsoft\Tracing\c6ca87bc34a76c06640d4647b5d30681_RASMANCS]
"ConsoleTracingMask" = "4294901760"

"EnableConsoleTracing" = "0"

Proxy settings are disabled:

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"

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

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"

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

Dropped PE files

MD5 File path
a1f36a48656fb629b0d23f69c651ef71c:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\25FDO7QC\client[1].exe
4dcccec5e9174e875330ab7768b18784c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\DLLWebCount2.dll
ff6f232df8569c889062f58d68cb7040c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\GetLoadCaption.dll
92ec4dd8c0ddd8c4305ae1684ab65fb0c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\INetC.dll
3599d30554ad65dc29fc689217d2152ec:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\KillProcDLL.dll
2e0785f18f8714393bc4bc1fe170eadfc:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\NSISList.dll
c17103ae9072a06da581dec998343fc1c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\System.dll
ab467b8dfaa660a0f0e5b26e28af5735c:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\nsRandom.dll
a1f36a48656fb629b0d23f69c651ef71c:\Users\"%CurrentUserName%"\AppData\Roaming\Jabra\Jabra.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

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

Manual removal*

  1. Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
  2. Delete the original Trojan file.
  3. Delete or disinfect the following files created/modified by the Trojan:

    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\JYNOWECL\agent[1].exe (120919 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\DLLWebCount2.dll (80687 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\KillProcDLL.dll (2435 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\INetC.dll (46 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\25FDO7QC\client[1].exe (214346 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Roaming\Jabra\Jabra.exe (227200 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\GetLoadCaption.dll (81083 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\NSISList.dll (2457 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Roaming\Jabra\JabraAgent.exe (128293 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\nsRandom.dll (433 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\System.dll (23 bytes)

  4. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  5. 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.

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text409622738230404.45908c69726ed422d3dcfdec9731986daa752
.rdata28672449646083.59034a2c7710fa66fcbb43c7ef0ab9eea5e9a
.data3686411045610243.20082e59cdcb732e4bfbc84cc61dd68354f78
.ndata1474566553600d41d8cd98f00b204e9800998ecf8427e
.rsrc21299216696168964.14468e3ca4c048e2beb164096d7c4b15b7a2c

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL IP
hxxp://download.networkexpress.co.kr/jabra/1018/client.exe1.234.42.53
hxxp://download.networkexpress.co.kr/jabra/1018/agent.exe1.234.42.53
config.networkexpress.co.kr
dns.msftncsi.com
count.networkexpress.co.kr

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

GET /jabra/1018/client.exe HTTP/1.1

User-Agent: NSIS_Inetc (Mozilla)

Host: download.networkexpress.co.kr

Connection: Keep-Alive

Cache-Control: no-cache

HTTP/1.1 200 OK

Date: Thu, 15 Dec 2016 01:47:55 GMT

Server: Apache

Last-Modified: Fri, 18 Nov 2016 06:40:17 GMT

ETag: "3002b3-38b098-5418d944632a4"

Accept-Ranges: bytes

Content-Length: 3715224

Connection: close

Content-Type: application/x-msdownload

MZ......................@................................... ...........!..L.!This program cannot be run in DOS mode....$........\...=...=...=..6.W..=..6.U.,=..6.T..=....m..=..gd...=...E"..=...E%..=...E5..=...=...>...c...=...c...=...c...<...c...=...cY..=...=1..=...c...=..Rich.=..........PE..L...b.-X.................R...........4.......p....@..........................P9...../.8...@...........................................!...............8......P7.........p...........................`...@............p...............................text...\Q.......R.................. ..`.rdata..|e...p...f...V..............@..@.data............`..................@....gfids.. ...........................@..@.giats.......`!....... .............@..@.tls.........p!....... .............@....rsrc.........!....... .............@..@.reloc.......P7.......6.............@..B........................................................................................................................................................................j...._..\...hp[Y....._...\....._......7'..Y.h.[Y.. '..Y.h.[Y...'..Y.h.\Y...'..Y.h.\Y...'..Y.h.\Y...&..Y.h0.Y....wY..8>_..h`.Y....wY..x>_... ?_......h!\Y...&..Y.h..^.......j.. A_.......%,A_..._..h \Y... A_.l.Y...4B_."....~&..Y.j..8B_.......Û_...%HB_..h6\Y...8B_...Y...LC_.$....D&..Y.h..Y....wY...[_..j.. \_......hA\Y...&..Y.j.. ]_......hK\Y...&..Y.j...[_..j...hU\Y...%..Y.j...\_..R...h_\Y...%..Y.h..Y....wY...[_..h,.Y....wY...]_..hi\Y...%..Y.hs\Y...%..Y.h}\Y...%..Y..|^_..w...h.\Y..w%..Y...^_..Y.

<<< skipped >>>

GET /jabra/1018/agent.exe HTTP/1.1

User-Agent: NSIS_Inetc (Mozilla)

Host: download.networkexpress.co.kr

Connection: Keep-Alive

Cache-Control: no-cache

HTTP/1.1 200 OK

Date: Thu, 15 Dec 2016 01:48:28 GMT

Server: Apache

Last-Modified: Wed, 16 Nov 2016 02:00:56 GMT

ETag: "3002b1-36a298-54161718d1d6c"

Accept-Ranges: bytes

Content-Length: 3580568

Connection: close

Content-Type: application/x-msdownload

MZ......................@................................... ...........!..L.!This program cannot be run in DOS mode....$........................H.......H..z....H.......:%....._.........j.......m.......}.....................................-.......(.........y.....-.......Rich............PE..L...P. X..........................................@..........................@7.....J.6...@.................................,.........................6......P5.........p...................|....... ...@............................................text...8........................... ..`.rdata..N...........................@..@.data............\..................@....gfids...............&..............@..@.giats.......`......................@..@.tls.........p......................@....rsrc...............................@..@.reloc.......P5.......4.............@..B........................................................................................................................................................................j....]......h`.W.....].p.Z...4.]..........Y.h..W......Y.h..W......Y.h..W......Y.h..W......Y.h..W......Y.hP.X.....W...J]..hd.X.....W..0K]....K]......h..W..q...Y.h|.\..#....j...M].......%.M]...%.M]..h..W....M]...X...lN]."....,...Y.j..pN]..^....%|N]...%.N]..h&.W...pN]...X....O].$........Y.h1.W......Y.h;.W......Y.h< X.....W...g]..j...h]..|...hE.W......Y.j...i]..d...hO.W......Y.j...g]..L...hY.W......Y.j...h]..4...hc.W..i...Y.hT X.....W...g]..hd X.....W...i]..hm.W..;...Y...i]...h..hw.W..%...Y..0j]..y...h..W...

<<< skipped >>>

Map

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

Strings from Dumps

%original file name%.exe_2712:

.text

.text

`.rdata

`.rdata

@.data

@.data

.ndata

.ndata

.rsrc

.rsrc

uDSSh

uDSSh

hu2.iu

hu2.iu

.DEFAULT\Control Panel\International

.DEFAULT\Control Panel\International

Software\Microsoft\Windows\CurrentVersion

Software\Microsoft\Windows\CurrentVersion

GetWindowsDirectoryA

GetWindowsDirectoryA

KERNEL32.dll

KERNEL32.dll

ExitWindowsEx

ExitWindowsEx

USER32.dll

USER32.dll

GDI32.dll

GDI32.dll

SHFileOperationA

SHFileOperationA

ShellExecuteA

ShellExecuteA

SHELL32.dll

SHELL32.dll

RegEnumKeyA

RegEnumKeyA

RegCreateKeyExA

RegCreateKeyExA

RegCloseKey

RegCloseKey

RegDeleteKeyA

RegDeleteKeyA

RegOpenKeyExA

RegOpenKeyExA

ADVAPI32.dll

ADVAPI32.dll

COMCTL32.dll

COMCTL32.dll

ole32.dll

ole32.dll

VERSION.dll

VERSION.dll

verifying installer: %d%%

verifying installer: %d%%

hXXp://nsis.sf.net/NSIS_Error

hXXp://nsis.sf.net/NSIS_Error

... %d%%

... %d%%

~nsu.tmp

~nsu.tmp

%u.%u%s%s

%u.%u%s%s

RegDeleteKeyExA

RegDeleteKeyExA

%s=%s

%s=%s

*?|/":

*?|/":

sers\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\INetC.dll

sers\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\INetC.dll

L.dll

L.dll

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\INetC.dll

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp\INetC.dll

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\nsc404B.tmp

%ctSNI

%ctSNI

`.data

`.data

@.reloc

@.reloc

SIZE %s

SIZE %s

REST %d

REST %d

FtpGetFileSize

FtpGetFileSize

Proxy-authorization: basic %s

Proxy-authorization: basic %s

Authorization: basic %s

Authorization: basic %s

Content-Type: application/x-www-form-urlencoded

Content-Type: application/x-www-form-urlencoded

Content-Length: %d

Content-Length: %d

FtpCommandA

FtpCommandA

%s:%s

%s:%s

%u bytes

%u bytes

%u kB

%u kB

%u MB

%u MB

%s - %s

%s - %s

%d:d:d

%d:d:d

/password

/password

Filename: %s

Filename: %s

NSIS_Inetc (Mozilla)

NSIS_Inetc (Mozilla)

(Err=%d)

(Err=%d)

Uploading %s

Uploading %s

D$%SP

D$%SP

t.UWh

t.UWh

KERNEL32.DLL

KERNEL32.DLL

USER32.DLL

USER32.DLL

COMCTL32.DLL

COMCTL32.DLL

HttpQueryInfoA

HttpQueryInfoA

FtpCreateDirectoryA

FtpCreateDirectoryA

FtpOpenFileA

FtpOpenFileA

HttpEndRequestA

HttpEndRequestA

HttpAddRequestHeadersA

HttpAddRequestHeadersA

HttpSendRequestA

HttpSendRequestA

InternetCrackUrlA

InternetCrackUrlA

HttpOpenRequestA

HttpOpenRequestA

HttpSendRequestExA

HttpSendRequestExA

WININET.DLL

WININET.DLL

INetC.dll

INetC.dll

Open URL Error

Open URL Error

URL Parts Error

URL Parts Error

FtpCreateDir failed (550)

FtpCreateDir failed (550)

Error FTP path (550)

Error FTP path (550)

Downloading %s

Downloading %s

%dkB (%d%%) of %dkB @ %d.dkB/s

%dkB (%d%%) of %dkB @ %d.dkB/s

(%d %s%s remaining)

(%d %s%s remaining)

z6?%XLT

z6?%XLT

:4.IB

:4.IB

nsc404B.tmp

nsc404B.tmp

3715224

3715224

\"%CurrentUserName%"\AppData\Roaming\Jabra\Jabra.exe

\"%CurrentUserName%"\AppData\Roaming\Jabra\Jabra.exe

sandbox_svc.exe

sandbox_svc.exe

c06640d4647b5d30681.exe

c06640d4647b5d30681.exe

c:\%original file name%.exe

c:\%original file name%.exe

d:\sandbox_svc.exe

d:\sandbox_svc.exe

640d4647b5d30681.exe

640d4647b5d30681.exe

C:\ProgramData\AppService

C:\ProgramData\AppService

%original file name%.exe

%original file name%.exe

ers\"%CurrentUserName%"\AppData\Local\Temp\nsm403A.tmp

ers\"%CurrentUserName%"\AppData\Local\Temp\nsm403A.tmp

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\

3580568

3580568

3688088

3688088

5522184

5522184

)-.Yln

)-.Yln

Nullsoft Install System v2.46

Nullsoft Install System v2.46

1.0.5.2

1.0.5.2

inetc.dll

inetc.dll

%original file name%.exe_2712_rwx_10004000_00001000:

callback%d

callback%d