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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/05/2024, 19:27

General

  • Target

    2024-05-14_29b057bf6e444cc7d8c1b9841eafbb59_cryptolocker.exe

  • Size

    39KB

  • MD5

    29b057bf6e444cc7d8c1b9841eafbb59

  • SHA1

    dde0d2fae4b7954ddbf46906d595a9d731c6542c

  • SHA256

    7430eb714bacfd290f93ad44135bb018c9e29793074fc3d48ad487c730d785bc

  • SHA512

    169ae145bffab4d4ca41b2d79170a668245f2efec4563ab876adeec15486c15285d16f862840c58d6b1326ef45e6edb31205472bd37cc2fbdebd34fc7624a627

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYjY6E:qDdFJy3QMOtEvwDpjjWMl7TkY6E

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\2024-05-14_29b057bf6e444cc7d8c1b9841eafbb59_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-14_29b057bf6e444cc7d8c1b9841eafbb59_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2328

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    e8fb2948672007a67304e89ff1d47feb

    SHA1

    cdc51d52a067c005e9f89a43fa87c14e6b6cb5ef

    SHA256

    7d71b0a2afbcc5650f8ee347775f0ff910fb0775e2997580a8628a9b41ec97b3

    SHA512

    a9cae7afe6d0a58fddbaf349c04484bb7a37ba1d57812ed36948c4c3fdffb5df8e903f6d88383697c9a81ea47cb00f1a355211060ae8babb63441453fdbfeea6

  • memory/1728-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1728-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1728-2-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/1728-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1728-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2328-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2328-19-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2328-20-0x0000000000210000-0x0000000000216000-memory.dmp

    Filesize

    24KB

  • memory/2328-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB