MD5: 843c90b5bd04ec5de6ade866afc03640
SHA1: 55003aa9c88d21397182c712f826a57c927ed09d
SHA256: 236e14e178b6621dd5450fa97a13e636085914a41b88297b26c049d513f2becb
SSDeep: 12288:P1/aGLDCMNpNAkoSzZWD8ayX2MQCw7D0vdE8FY0zt5eozZ jsD8F:P1/aGLDCM4D8ayGMLW0ztnsjsD8F
Size: 740203 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2014-02-27 08:41:59
Analyzed on: WindowsXP 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:576
bmfit.exe:1372

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

Mutexes

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

File activity

The process %original file name%.exe:576 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (537850 bytes)
%Documents and Settings%\All Users\Application Data\bmfit.exe (914498 bytes)

The process bmfit.exe:1372 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\AUTOEXEC.BAT .exe (1452114 bytes)
C:\MSDOS.SYS .exe (1452114 bytes)
C:\IO.SYS .exe (1452114 bytes)
C:\boot.ini .exe (1452114 bytes)
%Documents and Settings% .exe (1452114 bytes)
C:\RECYCLER .exe (1452114 bytes)
C:\ntldr .exe (1452114 bytes)
C:\original .exe (1452114 bytes)
C:\totalcmd .exe (1452114 bytes)
C:\NTDETECT.COM .exe (1452114 bytes)
C:\System Volume Information .exe (1452114 bytes)
C:\CONFIG.SYS .exe (1452114 bytes)
C:\marker .exe (1452114 bytes)
C:\%original file name%.exe .exe (1452114 bytes)
%Program Files% .exe (1452114 bytes)
%WinDir% .exe (1452114 bytes)
C:\pagefile.sys .exe (1452114 bytes)

The Trojan deletes the following file(s):

C:\Mirat (0 bytes)
C:\Mirau (0 bytes)
C:\Mirav (0 bytes)
C:\Miraw (0 bytes)
C:\Mirap (0 bytes)
C:\Miraq (0 bytes)
C:\Mirar (0 bytes)
C:\Miras (0 bytes)
C:\Mirah (0 bytes)
C:\Mirai (0 bytes)
C:\Miraj (0 bytes)
C:\Mirak (0 bytes)
C:\Mirad (0 bytes)
C:\Miraa (0 bytes)
C:\Mirab (0 bytes)

Registry activity

The process %original file name%.exe:576 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "3E 3B F9 C7 78 9C 4B 4B 43 CB EE A6 3D 6D 29 17"

[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"

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

[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 bmfit.exe:1372 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

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

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]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\bmfit.exe"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

No information is available.

PE Sections

Dropped from:

ef79edb6c3a591728202e26b0e5fde84

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 6
b8fded3e584cf2df9e993c0d5aa2a230
b4e515b7eaec106d074cbbfd17052f77
a0126baf86a4cdd25abca8c48c9fdb42
c840d8f434a02d73f15b45d451d68d57
27925457f2da84350fba1f77e44130d1
246a4efd6658e00044a5bfc8e16eb8f2

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

.rdata

@.bss

.idata

%Documents and Settings%\All Users\Application Data\bmfit.exe

Software\Microsoft\Windows\CurrentVersion\Run

Windows

Operating System

%H:%M:%S

%m/%d/%y

-0123456789

%s:%u: failed assertion `%s'

RegCloseKey

RegOpenKeyA

ADVAPI32.DLL

KERNEL32.dll

msvcrt.dll

SHELL32.DLL

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):
   

   %original file name%.exe:576
   bmfit.exe:1372

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

   %Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (537850 bytes)
   %Documents and Settings%\All Users\Application Data\bmfit.exe (914498 bytes)
   C:\AUTOEXEC.BAT .exe (1452114 bytes)
   C:\MSDOS.SYS .exe (1452114 bytes)
   C:\IO.SYS .exe (1452114 bytes)
   C:\boot.ini .exe (1452114 bytes)
   %Documents and Settings% .exe (1452114 bytes)
   C:\RECYCLER .exe (1452114 bytes)
   C:\ntldr .exe (1452114 bytes)
   C:\original .exe (1452114 bytes)
   C:\totalcmd .exe (1452114 bytes)
   C:\NTDETECT.COM .exe (1452114 bytes)
   C:\System Volume Information .exe (1452114 bytes)
   C:\CONFIG.SYS .exe (1452114 bytes)
   C:\marker .exe (1452114 bytes)
   C:\%original file name%.exe .exe (1452114 bytes)
   %Program Files% .exe (1452114 bytes)
   %WinDir% .exe (1452114 bytes)
   C:\pagefile.sys .exe (1452114 bytes)

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

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\bmfit.exe"

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