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Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/02/2024, 17:58

General

  • Target

    2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe

  • Size

    385KB

  • MD5

    993ce01700b212fd5dfb6be25976d3be

  • SHA1

    f4f04dc37cac40991ce97e0325c0315d1f000d86

  • SHA256

    44abb9bc47cc6eaf574acf883a16afe9d07ecef8fcb6c1f0bb9099292d3493a5

  • SHA512

    0e757fcaa0a4bad86eb4e7335ec038d093397897138b85aa5d1c031571a7d6b044e32daa632323bf42c9545b96e7a03eac150192f2f78e6b2cc775dad0ab2ded

  • SSDEEP

    6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXK:nnOflT/ZFIjBz3xjTxynGUOUhXK

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-18_993ce01700b212fd5dfb6be25976d3be_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4336
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\hasfj.exe

    Filesize

    385KB

    MD5

    8f286f1422d72e41f6bc7528aff0611e

    SHA1

    bfeb86ab045bacbffda1823a53b3444aa95003f5

    SHA256

    0bb57db8a098cc3180ef28a933d03b28ada3817673113ab74a021ee35ebe2987

    SHA512

    64b93c36b2200835995f1a64cc4f72d479c4b595c1a452fa29da133b09f02510a94888e016990ef3be43a235619cbe3594c85ed16a3e8d22dd71e37661fbdbf5

  • memory/1672-18-0x0000000002D60000-0x0000000002D66000-memory.dmp

    Filesize

    24KB

  • memory/1672-17-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/4336-0-0x0000000002260000-0x0000000002266000-memory.dmp

    Filesize

    24KB

  • memory/4336-1-0x0000000002260000-0x0000000002266000-memory.dmp

    Filesize

    24KB

  • memory/4336-2-0x0000000002310000-0x0000000002316000-memory.dmp

    Filesize

    24KB