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Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2024, 06:39

General

  • Target

    2024-04-15_e246c6417fa44b04a03c78b3c443bcda_cryptolocker.exe

  • Size

    48KB

  • MD5

    e246c6417fa44b04a03c78b3c443bcda

  • SHA1

    bcdb07b73931e189ca3e815e48944487f18c3de2

  • SHA256

    c144d332c354ad8bdd1b535689d039ecb78f9e997f8254e93ba7d303876c8838

  • SHA512

    ac188ca1fd530b66e65de8fed469b0d6bc0f5012413915f130f7c2f60a6bbeb67b55b7fab8a5dbab51f0969cddf17f13ebc4fdebacbc437266f26f3077b6322e

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaN4PYG:xj+VGMOtEvwDpjy+TN4t

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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\2024-04-15_e246c6417fa44b04a03c78b3c443bcda_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-15_e246c6417fa44b04a03c78b3c443bcda_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3728
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    48KB

    MD5

    09f54ea9f2d3003869089fafacd537c4

    SHA1

    114bc5399391cc2aa16edced60022ac3f1d24d0d

    SHA256

    e63f994135092887248f31d06ebee596a96aefd3cf12cd5067aefdae3d631c99

    SHA512

    57fdbe9c39f0f8f1e180354c12a0f2057b5c2255f0976b709e0e2ee7dc5d4f825477438db9636553b58ae870f1d00fe526a9869ad54ea0ec8f2b185a91d03f33

  • memory/3100-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3100-21-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/3100-20-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/3100-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3728-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3728-1-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/3728-2-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/3728-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

    Filesize

    24KB

  • memory/3728-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB