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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/02/2024, 22:34

General

  • Target

    2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe

  • Size

    148KB

  • MD5

    c9c305e1b9b42f94d9d23d7321c8ca0d

  • SHA1

    14623d09a09b8198a22599493796a7fb42612383

  • SHA256

    3c072936810eb1bf23f2213f12c99ca885ca55a0ded271962bd99db701305480

  • SHA512

    7512ff8c107de11492f25e76839e9dc52ea807c7ef4d8e78bddc4573711ab12e4d916af0a181e0c61cc3c5fb412ed9d06e8677f343bdc1bd609812c649a65b0f

  • SSDEEP

    1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPFl:V6a+pOtEvwDpjt22h

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3428
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    148KB

    MD5

    8c6a236462bd999645958f81d30e56bc

    SHA1

    f0578bcaa2b79f4c3df3cc606ad273cbeb08ac17

    SHA256

    271ae5a06c34da555f29c35eb9877a76602fd8c457cbe3adf44c81b6f20e06f1

    SHA512

    ac52d2f01692476aaf132e370a18dc2230053bdc91201da6ad53f9dc62c74ad6a5a450ce457f001228806c47ea44d8bf8d470a1b242ea4ee75bc0275369a7d4d

  • memory/1396-17-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/1396-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/3428-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3428-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3428-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB