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Analysis

  • max time kernel
    162s
  • max time network
    163s
  • platform
    windows7_x64
  • resource
    win7-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 3 IoCs
  • CrimsonRat

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\2aa160726037e80384672e89968ab4d2bd3b7f5ca3dfa1b9c1ecc4d1647a63f0.xls
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\ProgramData\DeIA-GIR\ulhtagnias.exe
      C:\ProgramData\DeIA-GIR\ulhtagnias.exe
      2⤵
      • Executes dropped EXE
      PID:1076

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1068-54-0x000000002F7A1000-0x000000002F7A4000-memory.dmp

    Filesize

    12KB

  • memory/1068-55-0x0000000070E31000-0x0000000070E33000-memory.dmp

    Filesize

    8KB

  • memory/1068-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1068-57-0x00000000751B1000-0x00000000751B3000-memory.dmp

    Filesize

    8KB

  • memory/1068-58-0x00000000001B0000-0x00000000002C0000-memory.dmp

    Filesize

    1.1MB

  • memory/1068-59-0x0000000005AC0000-0x000000000670A000-memory.dmp

    Filesize

    12.3MB

  • memory/1076-63-0x0000000000AC0000-0x0000000000AC2000-memory.dmp

    Filesize

    8KB

  • memory/1076-64-0x000007FEF1EE0000-0x000007FEF2F76000-memory.dmp

    Filesize

    16.6MB

  • memory/1076-65-0x0000000000AC6000-0x0000000000AE5000-memory.dmp

    Filesize

    124KB