Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/06/2024, 21:35

General

  • Target

    2024-06-06_cb5c53bb5534a37b6a427793956af3a9_cryptolocker.exe

  • Size

    46KB

  • MD5

    cb5c53bb5534a37b6a427793956af3a9

  • SHA1

    0cefddd957e5553ba60ce7a8860470b2ba047c08

  • SHA256

    c365d17190647945354022a0c1f0c5d40eb19b2cbaf6fef9ab0416a3bf970520

  • SHA512

    ddd9ece2f67b3785e0f481cfa9e40b1a70c43e45bbbbf481b4dd0fe6af8e5005708a2c26c71675398420f07c16bd93d3ef9c2613fdfd552e37613e7ba6356ca4

  • SSDEEP

    768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zz:y6QFElP6n+gMQMOtEvwDpjbizbR9Xwzz

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\2024-06-06_cb5c53bb5534a37b6a427793956af3a9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_cb5c53bb5534a37b6a427793956af3a9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4432
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3900

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          46KB

          MD5

          c527848bc9ff1d2176f283cd1af9ca39

          SHA1

          c4467d8c4629874b4454b4fa402c2784be3e8af6

          SHA256

          37dfb0d35c94f79a5f0a09cdec1296699e6aff56d9c48fa0df32cb623d675b1a

          SHA512

          7857ed2d5f65828d32e07ec486a080fad84cd2d764f3f02e93898abe48819a09ca50c2010be918ee4e8d1c5b2ba5faa076ba2a7685485814dcee3ddf9fdf1f0c

        • memory/3900-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB

        • memory/3900-23-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/4432-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/4432-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/4432-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB