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Analysis

  • max time kernel
    140s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/02/2024, 07:14

General

  • Target

    2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe

  • Size

    40KB

  • MD5

    dd1373d512af977e0cf9547b3f29cecd

  • SHA1

    6a424f57982dad36b7f931b87a5d8e2b8dd0835d

  • SHA256

    d6bf637d1c5a3b535f9e2e086b507e13b1fdbd8444e50198662a3b5f4c3fd18d

  • SHA512

    10a33d95216b07cda527f7e047142eca361792aa9bc63c3efc2c6c201df00acc77a62e0c2e041d1f1491af624d5c15395b46be87a5646f8d7b46db74e0fb5db3

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqJzJ:bxNrC7kYo1Fxf3s05rwxbFSt

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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\2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-14_dd1373d512af977e0cf9547b3f29cecd_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Executes dropped EXE
      PID:4408

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    cfb12de02423ba6eba7e984766a8d652

    SHA1

    5f09a78e4c9a4e4ef84a737dec853ed579990e67

    SHA256

    4a49dffc002ecf69a42a1eb6324c25dcd3f75e25b9686b5f19f7ee38335fe91e

    SHA512

    a88a8d93a7edc7c4422a1a347b8d1910e46acebf11b9773d796e0195a640d75a1220880d72390b332540c4aff67fc49ce0747174f49bda2f3407b2a1f7d96299

  • memory/4408-17-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/4408-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/4612-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/4612-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/4612-2-0x0000000003150000-0x0000000003156000-memory.dmp

    Filesize

    24KB