Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-02-2024 23:25

General

  • Target

    gg.exe

  • Size

    37KB

  • MD5

    0040e5705f25949024fb3e2c5e363b8a

  • SHA1

    6b83f9a7f32a2c1fee59151c50f9a52064cb7a94

  • SHA256

    4ce4b213b165a9f1d36f9461c9403a0195cd3941c7272716224d9baa3f467f70

  • SHA512

    cce6764d0adbc5294751ed70b81371c55953ce093eba33679d189b0d7936c6c9f079313118b7e047f612307b163d1a7e79da883b5e34296439dcf1ed9b5825ae

  • SSDEEP

    384:S4bsiDtT95hL5YyUvrZvZO64ai5PArAF+rMRTyN/0L+EcoinblneHQM3epzX0NrQ:xBv5zUvrZj1i9ArM+rMRa8Nuayt

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

bit-number.gl.at.ply.gg:80

Mutex

509436a24fee386b89cdbbd6be2abed7

Attributes
  • reg_key

    509436a24fee386b89cdbbd6be2abed7

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\gg.exe
    "C:\Users\Admin\AppData\Local\Temp\gg.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Roaming\server.exe
      "C:\Users\Admin\AppData\Roaming\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1864
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    0040e5705f25949024fb3e2c5e363b8a

    SHA1

    6b83f9a7f32a2c1fee59151c50f9a52064cb7a94

    SHA256

    4ce4b213b165a9f1d36f9461c9403a0195cd3941c7272716224d9baa3f467f70

    SHA512

    cce6764d0adbc5294751ed70b81371c55953ce093eba33679d189b0d7936c6c9f079313118b7e047f612307b163d1a7e79da883b5e34296439dcf1ed9b5825ae

  • memory/1864-11-0x0000000074830000-0x0000000074DDB000-memory.dmp

    Filesize

    5.7MB

  • memory/1864-12-0x0000000001F00000-0x0000000001F40000-memory.dmp

    Filesize

    256KB

  • memory/1864-14-0x0000000074830000-0x0000000074DDB000-memory.dmp

    Filesize

    5.7MB

  • memory/2208-0-0x0000000074830000-0x0000000074DDB000-memory.dmp

    Filesize

    5.7MB

  • memory/2208-1-0x0000000074830000-0x0000000074DDB000-memory.dmp

    Filesize

    5.7MB

  • memory/2208-2-0x0000000000AD0000-0x0000000000B10000-memory.dmp

    Filesize

    256KB

  • memory/2208-10-0x0000000074830000-0x0000000074DDB000-memory.dmp

    Filesize

    5.7MB