Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2024 15:52

General

  • Target

    2024-09-01_f8c9d082eee4768f177eb0ff9afb6f36_cryptolocker.exe

  • Size

    30KB

  • MD5

    f8c9d082eee4768f177eb0ff9afb6f36

  • SHA1

    27820e9627d9ba541aa565fcb4bdf0b4a07f336e

  • SHA256

    12d845f7d3e814a2076b1ba3022146b1beaf285dea57f0688ea6f96d0c88d582

  • SHA512

    07519b740b692959126633d927aef313c888b184e6f8d2b44fe0bd09d5d76c1bd1771679c22eb02cede3b9ca0850e6a642731ff746d31d38aa74075ee5da18ce

  • SSDEEP

    384:v0VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26Rsn1rCcOQtOOtEvwDpjqIGRS/Vb9hX:vQz7yVEhs9+js1SQtOOtEvwDpjz9+9A

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-01_f8c9d082eee4768f177eb0ff9afb6f36_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-01_f8c9d082eee4768f177eb0ff9afb6f36_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:652
    • 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:4824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    30KB

    MD5

    37034aca6b0e5f382964fe1c9507d320

    SHA1

    ce5c21ffd56e6490eccd67a94dc0960ce89b25d5

    SHA256

    4dfcd992d2b987feef6d5311b7741c8005f250b1fde0f1f9dc0d8b926e7b2aaa

    SHA512

    d62c466146e23391e7b09a12f11df2d393dc1d33b078b1ace9dfcbefd159403d7a8daeea0d06ee80159fb914c3530883767868d42ca868c2048b498ca45ddef9

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/652-0-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/652-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/652-2-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/4824-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4824-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB