Analysis

  • max time kernel
    150s
  • max time network
    164s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    30-01-2022 16:44

General

  • Target

    02fddfee4928270827be0b6be617661543eb59f4a0807047eacc05c8507d188b.exe

  • Size

    1.1MB

  • MD5

    7d61ca46b50982c962c63ee96547cae5

  • SHA1

    c36c1533a67aae67fa9dd1c6ffe14609e40ccba7

  • SHA256

    02fddfee4928270827be0b6be617661543eb59f4a0807047eacc05c8507d188b

  • SHA512

    19295c894765f183ab8a31496dc3e563431cbe37cb159cd84bcc6e1859a3d14727377189456317d24751e9447eec27a19cb7d274732389f17215f070fab41651

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
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\02fddfee4928270827be0b6be617661543eb59f4a0807047eacc05c8507d188b.exe
    "C:\Users\Admin\AppData\Local\Temp\02fddfee4928270827be0b6be617661543eb59f4a0807047eacc05c8507d188b.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:952
    • C:\ProgramData\Dathlas\udhgariwe.exe
      "C:\ProgramData\Dathlas\udhgariwe.exe"
      2⤵
      • Executes dropped EXE
      PID:984
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Documents\02fddfee4928270827be0b6be617661543eb59f4a0807047eacc05c8507d188b_3 .docx"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1804
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1712

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/952-54-0x0000000000A70000-0x0000000000A72000-memory.dmp

      Filesize

      8KB

    • memory/952-55-0x000007FEF2230000-0x000007FEF32C6000-memory.dmp

      Filesize

      16.6MB

    • memory/952-56-0x0000000000A76000-0x0000000000A95000-memory.dmp

      Filesize

      124KB

    • memory/984-60-0x0000000002C70000-0x0000000002C72000-memory.dmp

      Filesize

      8KB

    • memory/984-61-0x0000000002C76000-0x0000000002C95000-memory.dmp

      Filesize

      124KB

    • memory/984-59-0x000007FEF2230000-0x000007FEF32C6000-memory.dmp

      Filesize

      16.6MB

    • memory/1712-67-0x000007FEFB8C1000-0x000007FEFB8C3000-memory.dmp

      Filesize

      8KB

    • memory/1804-62-0x00000000723B1000-0x00000000723B4000-memory.dmp

      Filesize

      12KB

    • memory/1804-63-0x000000006FE31000-0x000000006FE33000-memory.dmp

      Filesize

      8KB

    • memory/1804-64-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1804-65-0x0000000076041000-0x0000000076043000-memory.dmp

      Filesize

      8KB

    • memory/1804-68-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB