Analysis

  • max time kernel
    164s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 23:23

General

  • Target

    7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004.exe

  • Size

    1.2MB

  • MD5

    2aa9a6fedcd536a0863a2040772cf11d

  • SHA1

    2b8e4757d46aa38e5cbafe0cd64cbb4409f09507

  • SHA256

    7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004

  • SHA512

    3fef57b72dfeafba37a1ab78aad232315fca4f078fdd3ef2f84e20f9e9cb99e84ac522a47704ba041f6fcc1d06bd96f41f2c19c61c6fe9b15de6a173a5dfbbd9

  • SSDEEP

    12288:MgadJfTztJr15d2swcOekReZWml4R8cov2tSUJnS9Yss40HQ3TBqqvrLrZTP57l:Yd98+0vAUJnAjBHvr/ZTP57

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

joker1787.no-ip.biz:1984

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004.exe
    "C:\Users\Admin\AppData\Local\Temp\7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Users\Admin\AppData\Local\Temp\7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004.exe
      C:\Users\Admin\AppData\Local\Temp\7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004.exe
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:660
      • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
        "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4124
        • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
          C:\Users\Admin\AppData\Local\Temp\Trojan.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:220
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:2224

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004.exe.log

    Filesize

    418B

    MD5

    89c8a5340eb284f551067d44e27ae8dd

    SHA1

    d2431ae25a1ab67762a5125574f046f4c951d297

    SHA256

    73ca1f27b1c153e3405856ebe8b3c6cdd23424d2ab09c0fe1eb0e2075513057b

    SHA512

    b101ac2e008bd3cc6f97fedb97b8253fb07fed1c334629ecbebe0f4942ccc1070491cddc4daea521164543b6f97ba9b99d2be1c50cc5a013f04e697fea9dbdac

  • C:\Users\Admin\AppData\Local\Temp\Trojan.exe

    Filesize

    1.2MB

    MD5

    2aa9a6fedcd536a0863a2040772cf11d

    SHA1

    2b8e4757d46aa38e5cbafe0cd64cbb4409f09507

    SHA256

    7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004

    SHA512

    3fef57b72dfeafba37a1ab78aad232315fca4f078fdd3ef2f84e20f9e9cb99e84ac522a47704ba041f6fcc1d06bd96f41f2c19c61c6fe9b15de6a173a5dfbbd9

  • C:\Users\Admin\AppData\Local\Temp\Trojan.exe

    Filesize

    1.2MB

    MD5

    2aa9a6fedcd536a0863a2040772cf11d

    SHA1

    2b8e4757d46aa38e5cbafe0cd64cbb4409f09507

    SHA256

    7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004

    SHA512

    3fef57b72dfeafba37a1ab78aad232315fca4f078fdd3ef2f84e20f9e9cb99e84ac522a47704ba041f6fcc1d06bd96f41f2c19c61c6fe9b15de6a173a5dfbbd9

  • C:\Users\Admin\AppData\Local\Temp\Trojan.exe

    Filesize

    1.2MB

    MD5

    2aa9a6fedcd536a0863a2040772cf11d

    SHA1

    2b8e4757d46aa38e5cbafe0cd64cbb4409f09507

    SHA256

    7b3a9805d9948328077b9b66734dfac230e631a969f9f0df9a91d6568c094004

    SHA512

    3fef57b72dfeafba37a1ab78aad232315fca4f078fdd3ef2f84e20f9e9cb99e84ac522a47704ba041f6fcc1d06bd96f41f2c19c61c6fe9b15de6a173a5dfbbd9

  • memory/220-143-0x0000000000000000-mapping.dmp

  • memory/660-138-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/660-137-0x0000000000000000-mapping.dmp

  • memory/2224-146-0x0000000000000000-mapping.dmp

  • memory/2620-132-0x0000000000930000-0x0000000000A3E000-memory.dmp

    Filesize

    1.1MB

  • memory/2620-136-0x0000000005400000-0x000000000540A000-memory.dmp

    Filesize

    40KB

  • memory/2620-135-0x00000000054E0000-0x000000000557C000-memory.dmp

    Filesize

    624KB

  • memory/2620-134-0x0000000005440000-0x00000000054D2000-memory.dmp

    Filesize

    584KB

  • memory/2620-133-0x00000000059F0000-0x0000000005F94000-memory.dmp

    Filesize

    5.6MB

  • memory/4124-139-0x0000000000000000-mapping.dmp