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Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 00:47

General

  • Target

    2024-09-21_6a9a47cd329b8516a247f8d6cafc7653_cryptolocker.exe

  • Size

    88KB

  • MD5

    6a9a47cd329b8516a247f8d6cafc7653

  • SHA1

    9096a6507e58c4d284ccf06ef7e792733607af25

  • SHA256

    e10c62009239fb57a37399d4aaffd25c288ff81e91e0221c754e1a4e0e5bab45

  • SHA512

    67851520f40be13e098750f5da68c553054914b4d6ec0f027deea8d9f39035121a544a79ae5de6d625ba3da35461664b2ba4c9a8088956807d0ac4f42bf21f87

  • SSDEEP

    1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOT7vM5RH:T6a+rdOOtEvwDpjNm

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-21_6a9a47cd329b8516a247f8d6cafc7653_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-21_6a9a47cd329b8516a247f8d6cafc7653_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2816
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4492
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4160,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=3820 /prefetch:8
    1⤵
      PID:1948

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      88KB

      MD5

      c9f869320be603f5b3a5f115239365b7

      SHA1

      b81c71c0bf5767c8ddffecc4fa73654ca147cf40

      SHA256

      aa82da5892e48f32032d1df4d1f28a13a736e98fcafb31b02560d52dde60d18e

      SHA512

      0e578233613637ea7222d9426dc3b1e778912bb3dffe7cde7b83d735c41c894810587d9b7b429b483a0b2c9198416ce7030e967a0f0c0d6bb0293cb3a41c78d2

    • memory/2816-0-0x0000000000500000-0x0000000000510000-memory.dmp

      Filesize

      64KB

    • memory/2816-1-0x0000000002050000-0x0000000002056000-memory.dmp

      Filesize

      24KB

    • memory/2816-2-0x0000000002050000-0x0000000002056000-memory.dmp

      Filesize

      24KB

    • memory/2816-3-0x0000000002070000-0x0000000002076000-memory.dmp

      Filesize

      24KB

    • memory/2816-17-0x0000000000500000-0x0000000000510000-memory.dmp

      Filesize

      64KB

    • memory/4492-19-0x00000000020D0000-0x00000000020D6000-memory.dmp

      Filesize

      24KB

    • memory/4492-20-0x0000000002100000-0x0000000002106000-memory.dmp

      Filesize

      24KB

    • memory/4492-26-0x0000000000500000-0x0000000000510000-memory.dmp

      Filesize

      64KB