Analysis

  • max time kernel
    92s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 03:31

General

  • Target
    2024-06-13_44fcb97ce91adf2e3f09f98cd7359809_cryptolocker.exe
  • Size 44KB
  • Sample240613-d28tpswflm
  • SHA256 1b87255c20de76c6dff140e87a2cfee8326c1eeaa4d6fc82d0c080696adeef13
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 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 7 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-13_44fcb97ce91adf2e3f09f98cd7359809_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_44fcb97ce91adf2e3f09f98cd7359809_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3412
    • 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:3880

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 44KB
        • SHA256 8c1cb302ea5cc32e1a617c7751dc83c7f1d84fc9de6d8ae47154671a6025a598
        • MD5 SHA1 SHA512 SSDEEP

        misids.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misids.exe
        • Size 315B
        • SHA256 d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3
        • MD5 SHA1 SHA512

        memory/3412-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3412-1-0x0000000000730000-0x0000000000736000-memory.dmp

        memory/3412-2-0x0000000000750000-0x0000000000756000-memory.dmp

        memory/3412-9-0x0000000000730000-0x0000000000736000-memory.dmp

        memory/3412-17-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3880-18-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3880-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

        memory/3880-48-0x0000000000500000-0x000000000050F000-memory.dmp