Gen.Variant.Buzy.3649_00d3a6e9b6

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

zmmon.exe:1264
ZKJxkNR73D83.exe:2016
%original file name%.exe:1664
tasklist.exe:424
tasklist.exe:480
zlmon.exe:504

The Trojan injects its code into the following process(es):

axsvr.exe:1036
juovea.exe:252
svchost.exe:1116
spoolsv.exe:1448

Mutexes

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

File activity

The process zmmon.exe:1264 makes changes in the file system.

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

%Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (1281 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\2.tmp (0 bytes)

The process ZKJxkNR73D83.exe:2016 makes changes in the file system.

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

%Documents and Settings%\%current user%\juovea.exe (2004827 bytes)

The process %original file name%.exe:1664 makes changes in the file system.

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

%Documents and Settings%\%current user%\ZKJxkNR73D83.exe (943 bytes)
%Documents and Settings%\%current user%\axsvr.dll (172 bytes)
%Documents and Settings%\%current user%\zlmon.exe (24 bytes)
%Documents and Settings%\%current user%\axsvr.exe (27 bytes)
%Documents and Settings%\%current user%\zmmon.exe (2374 bytes)

Registry activity

The process zmmon.exe:1264 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D3 C1 90 45 79 26 04 8B 92 B5 06 8D 6C 66 3C 20"

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\4.tmp,"

The process axsvr.exe:1036 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "BC 19 60 21 5B 02 A6 5F A4 8C AC 87 6A 2B 7C 23"

The process ZKJxkNR73D83.exe:2016 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C0 6F CE AF A4 3F AE 4C 7D 7F 2C 00 BB 98 AD DA"

[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\Explorer\Shell Folders]
"Common Documents" = "%Documents and Settings%\All Users\Documents"

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

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%]
"juovea.exe" = "juovea"

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

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

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

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

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

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"ShowSuperHidden" = "0"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"juovea" = "%Documents and Settings%\%current user%\juovea.exe /H"

The Trojan 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 Trojan 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:

"UNCAsIntranet" = "1"

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

"ProxyBypass" = "1"

The process %original file name%.exe:1664 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "33 DF BD C4 6C 8A D0 BB 07 53 3C C5 20 98 41 C1"

The process juovea.exe:252 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "3D 79 D9 29 B2 56 67 A2 47 F0 12 FB 4A FA E9 B2"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"ShowSuperHidden" = "0"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"juovea" = "%Documents and Settings%\%current user%\juovea.exe /E"

The process tasklist.exe:424 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "52 9C DE F9 F3 5E 1A 38 56 31 E6 3C 81 D2 FA C4"

The process tasklist.exe:480 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6B A7 F9 63 20 3F B6 B4 30 E2 22 C8 64 4D 9A 13"

The process zlmon.exe:504 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "88 B5 73 36 DD 96 F7 54 BD 70 81 91 0B B7 05 34"

Dropped PE files

MD5	File path
1ce7ff3ab56b036b0355cbb532978996	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\4.tmp
564fb51c90f91e749fc002446cfe8a09	c:\Documents and Settings\"%CurrentUserName%"\axsvr.dll
4728d25b809d631018ce6dcc32bb0a8e	c:\Documents and Settings\"%CurrentUserName%"\axsvr.exe
2ad8b4d88ee57f7b92c393b302026512	c:\Documents and Settings\"%CurrentUserName%"\juovea.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

Using the driver "UNKNOWN" the Trojan controls loading executable images into a memory by installing the Load image notifier.

Using the driver ROOTKITPATH the Trojan intercepts DriverStartIO in a miniport driver of a hard drive controller (ATAPI) to handle request to its own files:

StartIo

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. Scan a system with an anti-rootkit tool.
   
2. Terminate malicious process(es) (How to End a Process With the Task Manager):

   zmmon.exe:1264
   ZKJxkNR73D83.exe:2016
   %original file name%.exe:1664
   tasklist.exe:424
   tasklist.exe:480
   zlmon.exe:504
   

3. Delete the original Trojan file.
   
4. Delete or disinfect the following files created/modified by the Trojan:

   %Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (1281 bytes)
   %Documents and Settings%\%current user%\juovea.exe (2004827 bytes)
   %Documents and Settings%\%current user%\ZKJxkNR73D83.exe (943 bytes)
   %Documents and Settings%\%current user%\axsvr.dll (172 bytes)
   %Documents and Settings%\%current user%\zlmon.exe (24 bytes)
   %Documents and Settings%\%current user%\axsvr.exe (27 bytes)
   %Documents and Settings%\%current user%\zmmon.exe (2374 bytes)

5. Delete the following value(s) in the autorun key (How to Work with System Registry):

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "juovea" = "%Documents and Settings%\%current user%\juovea.exe /H"
   
   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "juovea" = "%Documents and Settings%\%current user%\juovea.exe /E"

6. 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
.text	4096	109019	109056	4.58408	3bca5dfb813e47e4d61b2ef2a0b421dc
.rdata	114688	29438	29696	3.22113	f9c681dd97d3b60d0806e6834aaa89d9
.data	147456	19172	7680	2.859	113a3d325647d9d93e9233dd30a02894
.rsrc	167936	10098	10240	3.33665	a2789b068cbfdafdde65c3af22025037

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps

axsvr.exe_1036:

.text

.text

`.data

`.data

.link

.link

.rloc

.rloc

axsvr.exe

axsvr.exe

axsvr.dll

axsvr.dll

COMCTL32.DLL

COMCTL32.DLL

GDI32.DLL

GDI32.DLL

KERNEL32.DLL

KERNEL32.DLL

OLE32.DLL

OLE32.DLL

OLEAUT32.DLL

OLEAUT32.DLL

USER32.DLL

USER32.DLL

CreateDialogIndirectParamA

CreateDialogIndirectParamA

SetWindowsHookExA

SetWindowsHookExA

juovea.exe_252:

.text

.text

`.data

`.data

.rsrc

.rsrc

MSVBVM60.DLL

MSVBVM60.DLL

U.lPJ

U.lPJ

VBA6.DLL

VBA6.DLL

cmdNextTip

cmdNextTip

%Program Files%\Microsoft Visual Studio\VB98\VB6.OLB

%Program Files%\Microsoft Visual Studio\VB98\VB6.OLB

cmdOK

cmdOK

TIPOFDAY.TXT

TIPOFDAY.TXT

TtwSqtkrdyoH.exe

TtwSqtkrdyoH.exe

svchost.exe_1116_rwx_009F0000_0001B000:

Fmsvcrt.dll

Fmsvcrt.dll

%d %d %d %d %d %d

%d %d %d %d %d %d

hXXps://

hXXps://

hXXp://

hXXp://

.com/

.com/

Global\C3819288-93FA-4E29-A254-BD9476B53C20

Global\C3819288-93FA-4E29-A254-BD9476B53C20

cfg.ini

cfg.ini

%s\%s

%s\%s

bckfg.tmp

bckfg.tmp

lsflt7.ver

lsflt7.ver

0;225;224;77;38;56;16;74;75

0;225;224;77;38;56;16;74;75

maxhttpredirects

maxhttpredirects

software\microsoft\windows\currentversion\internet settings

software\microsoft\windows\currentversion\internet settings

enablehttp1_1

enablehttp1_1

software\microsoft\windows\currentversion\internet settings\zones\3

software\microsoft\windows\currentversion\internet settings\zones\3

{AEBA21FA-782A-4A90-978D-B72164C80120}

{AEBA21FA-782A-4A90-978D-B72164C80120}

{A8A88C49-5EB2-4990-A1A2-0876022C854F}

{A8A88C49-5EB2-4990-A1A2-0876022C854F}

Opera\Opera\operaprefs.ini

Opera\Opera\operaprefs.ini

\profile\operaprefs.ini

\profile\operaprefs.ini

\prefs.js

\prefs.js

network.cookie.cookieBehavior

network.cookie.cookieBehavior

Mozilla\Firefox\Profiles\

Mozilla\Firefox\Profiles\

/login/;/tweet/;action=embed-flash;/faq/;/terms/;/contact/;/Forgotpassword/

/login/;/tweet/;action=embed-flash;/faq/;/terms/;/contact/;/Forgotpassword/

hXXp://%s/?xurl=%s&xref=%s

hXXp://%s/?xurl=%s&xref=%s

ole32.dll

ole32.dll

winmm.dll

winmm.dll

atl.dll

atl.dll

oleaut32.dll

oleaut32.dll

clk=%s&bid=%s&aid=%s&sid=%s&rd=%s

clk=%s&bid=%s&aid=%s&sid=%s&rd=%s

n%D,3

n%D,3

Global\6C29A0C8-62C6-415C-9538-B87690BC58D2

Global\6C29A0C8-62C6-415C-9538-B87690BC58D2

lsash.xp

lsash.xp

%d|%d|%s|%s

%d|%d|%s|%s

cmd.dll

cmd.dll

cmd64.dll

cmd64.dll

setup.exe

setup.exe

%u|%s

%u|%s

%s=%u|%s

%s=%u|%s

%[^.].%[^(](%[^)])

%[^.].%[^(](%[^)])

command|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s

command|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s

masks|%s

masks|%s

hXXp://NO REF/

hXXp://NO REF/

.softgeek.

.softgeek.

%s#%s

%s#%s

url|%s%s|

url|%s%s|

%s.dll

%s.dll

kernel32.dll

kernel32.dll

12345678

12345678

0123456789

0123456789

.text

.text

.rdata

.rdata

HTTP/1.1 302 Found

HTTP/1.1 302 Found

Location: %s

Location: %s

HTTP/1.1 200 OK

HTTP/1.1 200 OK

Content-Length: %d

Content-Length: %d

%sConnection: close

%sConnection: close

Set-Cookie: %s; expires=%s, u-%s-u u:u:u GMT

Set-Cookie: %s; expires=%s, u-%s-u u:u:u GMT

urlmon.dll

urlmon.dll

Global\56684A82-D074-4384-AEB9-D1A40041D9FB

Global\56684A82-D074-4384-AEB9-D1A40041D9FB

chrome

chrome

wermgr.exe

wermgr.exe

-queuereporting_svc

-queuereporting_svc

firefox

firefox

opera

opera

Global\B10C62E4-234C-4BF6-A1D5-1C0309CED145

Global\B10C62E4-234C-4BF6-A1D5-1C0309CED145

svchost.exe

svchost.exe

Global\a68d7de8-eba6-4a54-90e0-9cb9d93b3ed7

Global\a68d7de8-eba6-4a54-90e0-9cb9d93b3ed7

Global\cc51461b-e32a-4883-8e97-e0706dc65415

Global\cc51461b-e32a-4883-8e97-e0706dc65415

keywords

keywords

Accept-Language: %s

Accept-Language: %s

%s hXXp://%s/?xurl=%s&xref=%s

%s hXXp://%s/?xurl=%s&xref=%s

%s %s

%s %s

1.8|%s|%s|%s|%s|%s|%s

1.8|%s|%s|%s|%s|%s|%s

software\classes\http\shell\open\command

software\classes\http\shell\open\command

:"/\|?*

:"/\|?*

%s-%s

%s-%s