Analysis

  • max time kernel
    94s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 07:40

General

  • Target

    2024-11-21_b519aad11c6a8c488b3d6b4358944cee_cryptolocker.exe

  • Size

    63KB

  • MD5

    b519aad11c6a8c488b3d6b4358944cee

  • SHA1

    95ad97e7e229b291eeacc064c7b5a7549783a7b5

  • SHA256

    74bdfdfbcb3e2d9979006de83bafd6900142de38837f966d0318aa780de0e17e

  • SHA512

    868ca5eb23c0e18f29d95ffbad1f9767c6383a1f28b90a7837beb4874ee958d7a09c3a4521f083f9bb3b8c57eaa8d5bced986814159288be4a8f3115f5334a58

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMNuSY:TCjsIOtEvwDpj5HE/OUHnSMZn

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).

  • 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.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-21_b519aad11c6a8c488b3d6b4358944cee_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-21_b519aad11c6a8c488b3d6b4358944cee_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4436
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:3612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    3ec3d62df2b97828c4445adefb7840d0

    SHA1

    f04d3191763d07adda3f46ed88eacce8066aeea2

    SHA256

    62a28dc6f6ae574f5823d5a0cfda78dc68e75fbc8748de6d3303cac67cb5214f

    SHA512

    7dc2fca888e7c1f83ecdf670b02221b5f43977be21cfd973cd8e96273b5a60ea1c67c76f53ccfcaaf5c1307c60250056e3340874869a6863f55d40259268a67d

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3612-19-0x0000000001F50000-0x0000000001F56000-memory.dmp

    Filesize

    24KB

  • memory/3612-20-0x0000000001F70000-0x0000000001F76000-memory.dmp

    Filesize

    24KB

  • memory/3612-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4436-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4436-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/4436-2-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/4436-3-0x0000000000540000-0x0000000000546000-memory.dmp

    Filesize

    24KB

  • memory/4436-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB