MD5: ec7ce8651bea7400765aecb3e5628b39
SHA1: b3b3988a30669a97d4dcb7513e832b3206839d0c
SHA256: b93a4b416eb4c6ea9e4ab8f0cbc1653c356d23f4988dcb715a8eef1305859229
SSDeep: 6144:Wlu5mcLWoBK43u2JdwkzKtRUSng1nfHhX0pX:WYrLWL43ZvwgU JfHY
Size: 223183 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2014-05-11 23:03:52
Analyzed on: WindowsXPESX SP3 32-bit

Summary:

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

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:748
%original file name%.exe:1796
nawi.exe:616
nawi.exe:1344

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

Explorer.EXE:840

Mutexes

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

File activity

The process %original file name%.exe:748 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\taroks\normals.w (5064 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsxB3.tmp (7995 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsuB4.tmp\normals.dll (2392 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nsuB4.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsxB2.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nsuB4.tmp\normals.dll (0 bytes)

The process %original file name%.exe:1796 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\tmp4438cd0b.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Ifelr\nawi.exe (223 bytes)

The process nawi.exe:1344 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\taroks\normals.w (5064 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nssB7.tmp\normals.dll (2392 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nseB6.tmp (7995 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\nspB5.tmp (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nssB7.tmp\normals.dll (0 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\nssB7.tmp (0 bytes)

Registry activity

The process %original file name%.exe:748 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "43 9B 3F 8E FF CB 73 B4 02 C7 07 9A AD DA F4 FC"

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

[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\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process %original file name%.exe:1796 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8C 1E A1 2F A4 BA E8 A4 D0 00 3D 01 E1 2A 27 3E"

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

The process nawi.exe:616 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "19 07 0D 87 C9 02 14 3D 63 F9 6E 52 DA AD AC 70"

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

The process nawi.exe:1344 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "EA 56 C1 62 E2 F6 A4 25 28 6C 66 DD D8 B3 EB AE"

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

[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\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

The Trojan installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan installs the following user-mode hooks in USER32.dll:

SetCursorPos
DefMDIChildProcA
DefFrameProcA
DefDlgProcA
GetClipboardData
DefMDIChildProcW
DefFrameProcW
GetUpdateRgn
RegisterClassA
GetDCEx
ReleaseCapture
SetCapture
DefWindowProcA
CallWindowProcA
GetUpdateRect
PeekMessageA
CallWindowProcW
GetMessagePos
GetCursorPos
EndPaint
BeginPaint
DefWindowProcW
RegisterClassExA
GetMessageA
DefDlgProcW
SwitchDesktop
OpenInputDesktop
RegisterClassExW
RegisterClassW
GetCapture
PeekMessageW
GetMessageW
GetWindowDC
TranslateMessage
GetDC
ReleaseDC

The Trojan installs the following user-mode hooks in WS2_32.dll:

WSASend
send
closesocket

The Trojan installs the following user-mode hooks in kernel32.dll:

GetFileAttributesExW

The Trojan installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
NtCreateThread

Propagation

VersionInfo

Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version:
File Description:
Comments:
Language: Language Neutral

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

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

.text

`.data

.reloc

hXXp://VVV.google.com/webhp

PR_OpenTCPSocket

k.cim

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

: ;2*8.>

3.#70!2)

x#m`a`cmddt-

6 !26!1'1

7"52),,>

;<)?$*%,

71.(5;4=

(203,2$0

/?./,5 <

:>(<<44=3%

8%/<8/?)?/

%/><!8?>!

HTTP/1.1

userenv.dll

del "%s"

if exist "%s" goto d

del /F "%s"

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)

urlmon.dll

cabinet.dll

hXXp://

hXXps://

HTTP/1.

SSSh,4

GetProcessHeap

KERNEL32.dll

SetKeyboardState

ExitWindowsEx

MsgWaitForMultipleObjects

MapVirtualKeyW

GetKeyboardState

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

USER32.dll

RegOpenKeyExW

RegEnumKeyExW

RegCloseKey

RegCreateKeyExW

ADVAPI32.dll

PathIsURLW

UrlUnescapeA

SHDeleteKeyW

SHLWAPI.dll

ShellExecuteW

SHELL32.dll

Secur32.dll

SetViewportOrgEx

GDI32.dll

WS2_32.dll

PFXImportCertStore

CertDeleteCertificateFromStore

CertOpenSystemStoreW

CertCloseStore

CertEnumCertificatesInStore

CertDuplicateCertificateContext

PFXExportCertStoreEx

CRYPT32.dll

HttpSendRequestExA

HttpQueryInfoA

HttpSendRequestExW

HttpSendRequestW

HttpSendRequestA

InternetCrackUrlA

HttpOpenRequestA

HttpAddRequestHeadersA

GetUrlCacheEntryInfoW

HttpAddRequestHeadersW

WININET.dll

OLEAUT32.dll

NETAPI32.dll

.yBY8

6 6&6/656{6

cGlobal\XXX

nspr4.dll

nss3.dll

SysShadow

kernel32.dll

"%s" %s

/c "%s"

%sx.%s

%sx

%Documents and Settings%\%current user%\Application Data\Ciyxza\ylamo.sod

%Documents and Settings%\%current user%\Application Data\Ciyxza

ylamo.sod

Global\{5FA07C32-7222-1422-1671-00624916E055}

%Documents and Settings%\%current user%\Application Data

{C9DBCE17-C007-8259-1671-00624916E055}

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):
   

   %original file name%.exe:748
   %original file name%.exe:1796
   nawi.exe:616
   nawi.exe:1344
   

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\taroks\normals.w (5064 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsxB3.tmp (7995 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nsuB4.tmp\normals.dll (2392 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\tmp4438cd0b.bat (177 bytes)
   %Documents and Settings%\%current user%\Application Data\Ifelr\nawi.exe (223 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nssB7.tmp\normals.dll (2392 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\nseB6.tmp (7995 bytes)

5. Reboot the computer.
   

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