Analysis

  • max time kernel
    138s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-07-2024 15:21

General

  • Target

    2024-07-22_4c0b4df5e26aa16ef252b50bd59439c2_cryptolocker.exe

  • Size

    74KB

  • MD5

    4c0b4df5e26aa16ef252b50bd59439c2

  • SHA1

    e80936857d39efca54b8a1bf4ce750e8db732b68

  • SHA256

    4726542c3e823dc70e021bb742fb40464e468b355faf2efa52db686c50808a60

  • SHA512

    fef7103585ffbaa45ed508def5839f7a22cbd03b6c38d032884a55652f8c43b9f5e1ef98113c26b5e1885446a753241849b9526618328f7c48b266cc362b634b

  • SSDEEP

    768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9za:9Uj+AIMOtEvwDpjLizbR9Xwza

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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-22_4c0b4df5e26aa16ef252b50bd59439c2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-22_4c0b4df5e26aa16ef252b50bd59439c2_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3168
    • 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:792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    74KB

    MD5

    868300926070d88868a8eb067fc5c18b

    SHA1

    756b9cb654eaf0714a74a1fe44d54c37cb643a7f

    SHA256

    fd669a9c78634bc58704ec670cf39c40e7ba734bba1b4b4f5d740dcdbcdc5e8f

    SHA512

    c3ab039ec48c7320a756479133fa682fa51fc7c0cd5902886735a9c6d1776e9c3f2ee1c9c0306b1f423cd470d2ca5c9795fd9f289b311ff4b0952b5905a73399

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/792-17-0x0000000000860000-0x0000000000866000-memory.dmp

    Filesize

    24KB

  • memory/792-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3168-0-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/3168-1-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/3168-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB