Analysis

  • max time kernel
    140s
  • max time network
    156s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21-01-2022 23:02

General

  • Target

    dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e.exe

  • Size

    387KB

  • MD5

    2a82b0c4a6d1e0b685e15ee159324c28

  • SHA1

    1dd115a3b1e39dca45e07bf44d76bd3f83e624f5

  • SHA256

    dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e

  • SHA512

    e64676c84a3a7ff8c6a9129a5c9c8fe40ac0287f6c41fe94b3b609b01917d234a032bb19a0be737eabd968714dba38715a4e8016da6ba968f454a0969a4e0e37

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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e.exe
    "C:\Users\Admin\AppData\Local\Temp\dfa54dc6c171740352006b7125219b1fd9cd1403be4a3440c1ad1acb1b42d37e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2452
    • C:\ProgramData\Ladhnara\nirtbivaes.exe
      "C:\ProgramData\Ladhnara\nirtbivaes.exe"
      2⤵
      • Executes dropped EXE
      PID:652

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Ladhnara\nirtbivaes.exe

    MD5

    c1a8625fd15f04171bd32a9d95ffba5b

    SHA1

    d960f728e3312447063d209e6534bc28f615df9f

    SHA256

    451bb1928d4ecfcbc351c6859614f64d3648d4f4fc8a50f270542d6a07512697

    SHA512

    d648fb73d31b7ccb79218351c6fecd70df6a55f56c7e16d4ca6f932b761032d52bb4cea7fce73a4ae1b5b205bacd0b631349c11efa3f2b7958a6e4323fb1ebe0

  • C:\ProgramData\Ladhnara\nirtbivaes.exe

    MD5

    c1a8625fd15f04171bd32a9d95ffba5b

    SHA1

    d960f728e3312447063d209e6534bc28f615df9f

    SHA256

    451bb1928d4ecfcbc351c6859614f64d3648d4f4fc8a50f270542d6a07512697

    SHA512

    d648fb73d31b7ccb79218351c6fecd70df6a55f56c7e16d4ca6f932b761032d52bb4cea7fce73a4ae1b5b205bacd0b631349c11efa3f2b7958a6e4323fb1ebe0

  • memory/652-119-0x000001461CDD0000-0x000001461D792000-memory.dmp

    Filesize

    9.8MB

  • memory/652-120-0x0000014637F10000-0x0000014637F12000-memory.dmp

    Filesize

    8KB

  • memory/2452-115-0x000001CDE7660000-0x000001CDE76CA000-memory.dmp

    Filesize

    424KB

  • memory/2452-116-0x000001CDE9BA0000-0x000001CDE9BA2000-memory.dmp

    Filesize

    8KB