Analysis

  • max time kernel
    138s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-10-2024 08:22

General

  • Target

    2024-10-31_08559b4b89aa51071eabbdf7e0efb024_cryptolocker.exe

  • Size

    31KB

  • MD5

    08559b4b89aa51071eabbdf7e0efb024

  • SHA1

    77d72985fdf542d0f34a4ed7991a821eb20f3591

  • SHA256

    fcdab56b7401a7745781edf3212b2cc3ccdf4f20a9d73de7643e0634d7dbb1a3

  • SHA512

    aa153397a0755137f3227f76fe2f8f12f51f27faa0a4ee412d7e294283566da96a0559424aa071c3ee3c27b2e8ff4d83b5c9fdf0fcc013fa290388b5c9cd2703

  • SSDEEP

    384:v0VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26Rsn1rCcOQtOOtEvwDpjqIGRS/Vb9hM:vQz7yVEhs9+js1SQtOOtEvwDpjz9+9au

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\2024-10-31_08559b4b89aa51071eabbdf7e0efb024_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-31_08559b4b89aa51071eabbdf7e0efb024_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5092
    • 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:3100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    31KB

    MD5

    f8b254b91f4746904e433ce05c65ae52

    SHA1

    4b4a20b74528eed26a77b0227e25cee73af5990d

    SHA256

    0a4ba313cc6ba368e0536143065588164ce476d9b057d75d99d79a626e9d4d54

    SHA512

    98d87a3f602f44ca43fef140934f9a18b261a8e94652d6bcb0812999bb7386dc8e01816634334985f6b6786e0ccab044fa7d015629eb025418003a19a9f31d24

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3100-17-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/3100-18-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/5092-0-0x0000000002220000-0x0000000002226000-memory.dmp

    Filesize

    24KB

  • memory/5092-1-0x0000000002220000-0x0000000002226000-memory.dmp

    Filesize

    24KB

  • memory/5092-2-0x0000000002240000-0x0000000002246000-memory.dmp

    Filesize

    24KB