Analysis

  • max time kernel
    133s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-06-2024 17:47

General

  • Target

    2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe

  • Size

    69KB

  • MD5

    0d90a7c867594313410030877ff5357d

  • SHA1

    beba6930251e743a5395258a6f666da4a83151a5

  • SHA256

    e2b0754978a0afbb6f9899c253609fc454fb29112e617307f29611ae40fb176e

  • SHA512

    b57d1c17a6a4ac8d8a5492856791a7ede96476a3430db49b5751be14c4cbe8e9b2f2ed7d1157fa7115f4ebb2f6b4793956878265331520086e7fd85ab48a9b1f

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dA:i5nkFGMOtEvwDpjNbwQEI8UZDW

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_0d90a7c867594313410030877ff5357d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2672
    • 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:4768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    69KB

    MD5

    40e4ab965e15179958ce0314474d9d26

    SHA1

    73f52ed61a8190241ab8e01e3680860a6ef194fe

    SHA256

    c0d88da2f58f80be174a6bffe7e666375251bd4c0a3cff693dd661a2a1a12ca6

    SHA512

    f0b4dd85fe0fd93f03911014a2c6a943f939c39c4da17e8c62a56bcb7e0b273cd91627b7232fc5c6eb296fd0a15f95ad585d8553315b232dc7fd4e222d7a2ad4

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2672-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2672-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/2672-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/2672-9-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/2672-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4768-19-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4768-21-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/4768-27-0x00000000020D0000-0x00000000020D6000-memory.dmp

    Filesize

    24KB

  • memory/4768-51-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB