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Analysis

  • max time kernel
    167s
  • max time network
    174s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    30/01/2022, 15:47

General

  • Target

    2aa160726037e80384672e89968ab4d2bd3b7f5ca3dfa1b9c1ecc4d1647a63f0.xls

  • Size

    422KB

  • MD5

    48476da4403243b342a166d8a6be7a3f

  • SHA1

    6e089605173097205a7906a796ad7c8315feba9c

  • SHA256

    2aa160726037e80384672e89968ab4d2bd3b7f5ca3dfa1b9c1ecc4d1647a63f0

  • SHA512

    1bb134eb6eaa1759fab21309cc527c98935f7af73625c07e7cf7e1837978d741c1f6d8a4df4dc9b81126e86aa59424dd3372ab16ddf31787e1bb8aa0a7658eef

Score
10/10

Malware Config

Signatures

  • CrimsonRAT Main Payload 2 IoCs
  • CrimsonRat

    Crimson RAT is a malware linked to a Pakistani-linked threat actor.

  • Executes dropped EXE 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 26 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\2aa160726037e80384672e89968ab4d2bd3b7f5ca3dfa1b9c1ecc4d1647a63f0.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\ProgramData\DeIA-GIR\ulhtagnias.exe
      C:\ProgramData\DeIA-GIR\ulhtagnias.exe
      2⤵
      • Executes dropped EXE
      PID:4576

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/784-118-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

    Filesize

    64KB

  • memory/784-119-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

    Filesize

    64KB

  • memory/784-120-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

    Filesize

    64KB

  • memory/784-121-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

    Filesize

    64KB

  • memory/784-124-0x00007FFBCE9E0000-0x00007FFBCE9F0000-memory.dmp

    Filesize

    64KB

  • memory/784-131-0x00007FFBCBCE0000-0x00007FFBCBCF0000-memory.dmp

    Filesize

    64KB

  • memory/784-132-0x00007FFBCBCE0000-0x00007FFBCBCF0000-memory.dmp

    Filesize

    64KB

  • memory/784-269-0x000001FB01960000-0x000001FB01964000-memory.dmp

    Filesize

    16KB

  • memory/4576-306-0x0000000003770000-0x0000000003772000-memory.dmp

    Filesize

    8KB

  • memory/4576-308-0x0000000003772000-0x0000000003774000-memory.dmp

    Filesize

    8KB