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Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    21/01/2024, 11:22

General

  • Target

    6d2dd997fba6f32224da79bffe045408.exe

  • Size

    43KB

  • MD5

    6d2dd997fba6f32224da79bffe045408

  • SHA1

    bb1e4b50edac6717d8c750a40532eb31a2560a41

  • SHA256

    59957e041167865b2bd399f65f382246b60837905dca819cb736b50f66f59c7e

  • SHA512

    b4e9925b668fab559fd436350855f8fa6ca613e2a2271312f70b0790c71233a09542d54afd3aa504e65ee908a64ccd4b4dcd74047b04a09ee66f11561358169b

  • SSDEEP

    384:AZypJE1STss7yKSDzAS+qE1LpS2FzsIij+ZsNO3PlpJKkkjh/TzF7pWn50reT0pe:mu2k4smKSPAhrLkguXQ/oE+L

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6d2dd997fba6f32224da79bffe045408.exe
    "C:\Users\Admin\AppData\Local\Temp\6d2dd997fba6f32224da79bffe045408.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1180
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • Creates scheduled task(s)
        PID:2700
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {E525224F-EDFE-488F-B66E-BD69B7038C2C} S-1-5-21-1268429524-3929314613-1992311491-1000:XBTLDBHN\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2288
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • Executes dropped EXE
      PID:1812
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • Executes dropped EXE
      PID:2500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\WindowsServices.exe

    Filesize

    43KB

    MD5

    6d2dd997fba6f32224da79bffe045408

    SHA1

    bb1e4b50edac6717d8c750a40532eb31a2560a41

    SHA256

    59957e041167865b2bd399f65f382246b60837905dca819cb736b50f66f59c7e

    SHA512

    b4e9925b668fab559fd436350855f8fa6ca613e2a2271312f70b0790c71233a09542d54afd3aa504e65ee908a64ccd4b4dcd74047b04a09ee66f11561358169b

  • memory/1180-12-0x0000000000C40000-0x0000000000C52000-memory.dmp

    Filesize

    72KB

  • memory/1180-16-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/1180-13-0x0000000004D00000-0x0000000004D40000-memory.dmp

    Filesize

    256KB

  • memory/1180-10-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/1812-22-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/1812-19-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/1812-20-0x0000000000B30000-0x0000000000B42000-memory.dmp

    Filesize

    72KB

  • memory/1812-21-0x0000000004A40000-0x0000000004A80000-memory.dmp

    Filesize

    256KB

  • memory/2224-11-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2224-2-0x0000000002120000-0x0000000002160000-memory.dmp

    Filesize

    256KB

  • memory/2224-1-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2224-0-0x0000000000130000-0x0000000000142000-memory.dmp

    Filesize

    72KB

  • memory/2500-24-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2500-25-0x0000000000C90000-0x0000000000CA2000-memory.dmp

    Filesize

    72KB

  • memory/2500-26-0x0000000000620000-0x0000000000660000-memory.dmp

    Filesize

    256KB

  • memory/2500-27-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB