Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/05/2024, 08:37

General

  • Target

    2024-05-21_7933af025a94c18b5237eb806e5521c5_cryptolocker.exe

  • Size

    70KB

  • MD5

    7933af025a94c18b5237eb806e5521c5

  • SHA1

    b8594184e1ddce535f8a3be5fbedec67678e5dd4

  • SHA256

    7a470448d6680c49fda3a961931e1b6d0ef21ce1d357c70283c9e9341a53eb8f

  • SHA512

    6a7179ecb6deb717b228e96ad925de100ae47f965f10d371163712363ed8f1c53eec4df06737d8d190688608fb7c10761bd8b419e000a4e1994f494f5d0a194b

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/Rz:vj+jsMQMOtEvwDpj5HZYTjipvF24r

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-21_7933af025a94c18b5237eb806e5521c5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-21_7933af025a94c18b5237eb806e5521c5_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:536
    • 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:4888

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    70KB

    MD5

    a03731c12ef417010dea08b1baf77edb

    SHA1

    f0026916488a41bad1a9992f4cec7483c8134731

    SHA256

    2e6ee566bacaa1284cf9b55b0c9ed78ad4520b8ff3a8afd16ef3b382b6021cbf

    SHA512

    d1e05d5f5e942d5ecc317b8f33647c50064c1aeef96143665417fb02ba56590771c075f8de20c2f9931bdab2da557514c4e4dced9e7dba94d4d61810f81c3d51

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/536-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/536-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/536-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB