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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    27/01/2024, 23:44

General

  • Target

    2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe

  • Size

    56KB

  • MD5

    7725f0262a937a673ae806f83ccbfce6

  • SHA1

    b6b184cb6267a7501400d9c4e02ea0ca9a6df5b4

  • SHA256

    ebd1622345626328b49133dca24eb7f94951cc4169e7305ba7b0c30e78153ebf

  • SHA512

    e76a80662c5f174f117ce1d77b24121b41dc0e9d4b6a1f050bac1ca83ae2fa66d2cf899023a0ccb307514fed58473f7c75daefd558ba3471ee2be12dca6de79a

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7GoFX:xj+VGMOtEvwDpjubEgyX

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-27_7725f0262a937a673ae806f83ccbfce6_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    57KB

    MD5

    99c55338fe24860bb70c4bd9e4844d54

    SHA1

    92519daf7d13635c43f6c53a4b34ea4ae94839f5

    SHA256

    f52150c2e4ddc35ebdcf9f083f985f0e53d4378d85580d9ebbb420cb3547c22d

    SHA512

    87bac6486a33a0c9b02508f38aa445e528af27e483445576020a274e64638161b2af71ef9c798699c059c249089d2e7e28b725ac5916e90b334c1e7b9cffc884

  • memory/1420-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1420-1-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1420-3-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1420-2-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/1420-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1420-15-0x00000000005C0000-0x00000000005D0000-memory.dmp

    Filesize

    64KB

  • memory/2388-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2388-19-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/2388-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2388-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB