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Analysis

  • max time kernel
    135s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/06/2024, 03:23

General

  • Target

    2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe

  • Size

    34KB

  • MD5

    0494da7a581072c5d49301c513b2f5ad

  • SHA1

    74f22ff25ed8570159c9736a51d061afd2e4aa9a

  • SHA256

    692d8b1d8decc77015a64c60f4166476058da12e7d9aa58dd39b33b565188b17

  • SHA512

    0cf6f34cdd2f9bcec713be9a7e2caa5a1df4e43b00a06cdbf81757cb5fac522cfa8e15eafad5abbd679718499abf54ce9728d7899d26ebdaa0bfd5082a63e277

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jd+aV:bxNrC7kYo1Fxf2rYPsu

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 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\2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-05_0494da7a581072c5d49301c513b2f5ad_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:3608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    34KB

    MD5

    32bb91f1c989e0faa986f3f7853d7c95

    SHA1

    d7b9d7c23fdb7b9d9f142773b46e2e70a0af1e7f

    SHA256

    550ec5209051dd17ecb25d7a835cbf4661e4496b7c4563d081016148c447c574

    SHA512

    87b2acb4b29a7fefce4ae642953d84d68f5c2323d787d545020fa003d33301b0f6521aeaaf372a81823bf483584c37cb30ba56f159b8a6aad4adc2945e9f90d3

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

    Filesize

    261B

    MD5

    11bed1c06d8f4680de5154405be20365

    SHA1

    9c3095f1aa0b02924c23592d1e86673bb0081ca1

    SHA256

    bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

    SHA512

    050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

  • memory/2804-0-0x0000000002200000-0x0000000002206000-memory.dmp

    Filesize

    24KB

  • memory/2804-1-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/2804-8-0x0000000002200000-0x0000000002206000-memory.dmp

    Filesize

    24KB

  • memory/3608-23-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB