Analysis

  • max time kernel
    139s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/05/2024, 17:12

General

  • Target

    20240517ccedd5885c678a66a45f0ca88db32631cryptolocker.exe

  • Size

    121KB

  • MD5

    ccedd5885c678a66a45f0ca88db32631

  • SHA1

    da1c9b0848c0930e9ba82accee87c9d91bc32cd4

  • SHA256

    96e30c322455e3367a97849a7b386d44c8fa565f4cc1e4c868d9ce2509d69aed

  • SHA512

    1796fde86b6d02879ac6be07c605ce94c3071577bca8f2b21fa54819fa2365d8e8c99586f5c442b282088c0fdfddcda5968217d7d2d329d0e6e93a70279555ee

  • SSDEEP

    768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBTK55:gUj+AIMOtEvwDpjNbwQEIPlemUhYan

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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).

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20240517ccedd5885c678a66a45f0ca88db32631cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\20240517ccedd5885c678a66a45f0ca88db32631cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4168
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    122KB

    MD5

    d520af32229755c4a9a88fca59a70130

    SHA1

    f4409cf794e3f938b363402e3aa94e176ca9f0c2

    SHA256

    49ed0ec0f991ac4bc92dd19a99092d8b57f502edb1327674530b4afc2cd4497a

    SHA512

    79d612f956a8feaf39c2aa12b21b9be4236f63693741134644d8b938f209ae31f87b306d37c0d306629a531171bac2380d58b3f61bc13c1adea07c9e220a7504

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1804-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4168-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4168-2-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/4168-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB