Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29/02/2024, 00:56

General

  • Target

    2024-02-29_e13b6372f71b660d7c42a13ed113e62e_cryptolocker.exe

  • Size

    60KB

  • MD5

    e13b6372f71b660d7c42a13ed113e62e

  • SHA1

    0373e4e605a5a10ca4aee4a5f8faaf7da6fb6176

  • SHA256

    be06af0e6c55fcad543e9ad18f72f46a8c55f35956446427a67207a33921889b

  • SHA512

    365293b7fe68e4890e008509c29ba975865da9a38e1ce42ab518ce3cbe4098177f4219377ec816ce5f6c0762602aca678f1353fe0342c16d9cd74e7ecd6f4889

  • SSDEEP

    1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHOE:btng54SMLr+/AO/kIhfoKMHdi

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-29_e13b6372f71b660d7c42a13ed113e62e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-29_e13b6372f71b660d7c42a13ed113e62e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\gewos.exe

    Filesize

    61KB

    MD5

    32c666f2e59518c6304041ab5d7a7658

    SHA1

    b2e8ae207b6c4e0dbef74400211d1d1c56a383b9

    SHA256

    eb995282be5524ab6d718ab4f6f406b46b6bb88d25fc102365acd6f803eef73e

    SHA512

    e8468f6f71b99a258244109d1ebe9c4176b1689e7212cb9f49b86a05a1424a25c616d4ba908bd82eb20c0d103053a989e21afd5c2b910d63594f04988501a2bf

  • memory/2612-16-0x00000000003E0000-0x00000000003E6000-memory.dmp

    Filesize

    24KB

  • memory/3024-0-0x00000000003D0000-0x00000000003D6000-memory.dmp

    Filesize

    24KB

  • memory/3024-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/3024-7-0x00000000003D0000-0x00000000003D6000-memory.dmp

    Filesize

    24KB