Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26/04/2024, 04:25

General

  • Target
    2024-04-26_0cf25db13e28609b788b10be4df793f2_cryptolocker.exe
  • Size 47KB
  • Sample240426-e2gkwsaa24
  • SHA256 6421386a233cccb9bc3b7e40ba083798e729db181ab51b1cb68558664fbe58e6
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-26_0cf25db13e28609b788b10be4df793f2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-26_0cf25db13e28609b788b10be4df793f2_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2292
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2744

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        asih.exe

        • Path C:\Users\Admin\AppData\Local\Temp\asih.exe
        • Size 47KB
        • SHA256 79bfa443bcf3163240e99564d6703d03d742e6c90e6e4fe977f91ddc0beb395f
        • MD5 SHA1 SHA512 SSDEEP

        memory/2292-1-0x0000000000240000-0x0000000000246000-memory.dmp

        memory/2292-3-0x0000000000470000-0x0000000000476000-memory.dmp

        memory/2292-2-0x0000000000240000-0x0000000000246000-memory.dmp

        memory/2292-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/2292-15-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/2292-13-0x00000000006F0000-0x00000000006FF000-memory.dmp

        memory/2744-26-0x0000000000440000-0x0000000000446000-memory.dmp

        memory/2744-17-0x0000000000500000-0x000000000050F000-memory.dmp