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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 04:38

General

  • Target

    2024-06-02_958da012bd185b5676faec41cc41fdb9_cryptolocker.exe

  • Size

    88KB

  • MD5

    958da012bd185b5676faec41cc41fdb9

  • SHA1

    a879dd6a1c93418081a530b06599041d7b89f287

  • SHA256

    f34c13a2a6f92947c93dd3015c702862d7fc5d74d7791d0250eabdd85fc81aad

  • SHA512

    bb9fe6fe574a8209f231510f0b1a67efe271f8912b68a5302dc1f5b84b7161a4dd134311f98330fcebd512c404793e493c1a768b17ead2d83110da4d3f2324dc

  • SSDEEP

    768:qkmnjFom/kLyMro2GtOOtEvwDpjeY10Y/YMsvlMdwPK80GQuchoIgtIODZ:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgX

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-02_958da012bd185b5676faec41cc41fdb9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_958da012bd185b5676faec41cc41fdb9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    89KB

    MD5

    8ec079d9d3a8e1ed067ee9de407013b5

    SHA1

    dcc871dd4cb3ce9bcd3ac698d59de4e6dd0cf4d2

    SHA256

    91267f60f3961e670bfee6a2f5707eba404e45f8863245e96ab6f5f3b06baee8

    SHA512

    4ef2ec2739fa2dbc5324d84c2c7ecfe4829023d95ae3290613ec04811c5b62bd2bf08d5861aa659c75efc5acb67c38f9cda60c0b431199953e08735745852a9e

  • memory/2108-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2108-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2108-2-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/2108-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2108-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2480-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2480-19-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2480-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB