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Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2024, 11:44

General

  • Target

    6789cecc505f1df9b92f14e313f17909.exe

  • Size

    137KB

  • MD5

    6789cecc505f1df9b92f14e313f17909

  • SHA1

    0d594a246dc65d107481360ac4f1a1344b2baebc

  • SHA256

    6a0c4323f4136983cdb028b083730ac7dc3127087f495354dc3d8c07279aff92

  • SHA512

    573cbe0d2c1b57b3d19b85378431960cc429c9471795314d86d7249982c596388874fea95d4e6f149b6eb72ab6340b6a937e44ceb37ddf5435ff01396f5dfe01

  • SSDEEP

    3072:PhqtN9km5IS68sxKug3EZ7DIL0N52xyYArYB32Ii4DHh89q3HD:s368scug3GA4NgKMnBOq3

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

nj.con-ip.com:1177

Mutex

5f805e177fa7c673482c92c255460b67

Attributes
  • reg_key

    5f805e177fa7c673482c92c255460b67

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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).

  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe
    "C:\Users\Admin\AppData\Local\Temp\6789cecc505f1df9b92f14e313f17909.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1588
    • C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe
      "C:\Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Users\Admin\AppData\Roaming\System.exe
        "C:\Users\Admin\AppData\Roaming\System.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2696
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System.exe" "System.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:2792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\CJRqJYXiFF6jGf2AbP16.exe

    Filesize

    29KB

    MD5

    77f54ad81c4e3267c773d90e6f14feb3

    SHA1

    47af82fe19c20b59aef9a4394d41a5b8fc22310b

    SHA256

    d4926fd99c2edf0b5a1a82e0895e6b466370562361507fb9eda6ad82c0026b1f

    SHA512

    806dc86dcbde255e18bac8e45d32a18fabe4d5061fe680add7a7deaf92a67417fb9f436192c509b4f29322f69c1b49215d1db7b1ee76085e3d44f6da04d51bb9

  • memory/1588-0-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/1588-2-0x0000000001EB0000-0x0000000001EF0000-memory.dmp

    Filesize

    256KB

  • memory/1588-1-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/1588-10-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-12-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-11-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-20-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/2696-21-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/2696-23-0x00000000001A0000-0x00000000001E0000-memory.dmp

    Filesize

    256KB

  • memory/2696-24-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/2696-25-0x00000000740B0000-0x000000007465B000-memory.dmp

    Filesize

    5.7MB

  • memory/2696-26-0x00000000001A0000-0x00000000001E0000-memory.dmp

    Filesize

    256KB

  • memory/2696-27-0x00000000001A0000-0x00000000001E0000-memory.dmp

    Filesize

    256KB

  • memory/2696-28-0x00000000001A0000-0x00000000001E0000-memory.dmp

    Filesize

    256KB