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Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 19:35

General

  • Target

    2024-10-17_b60c4de3fb4aa80acd67e125bb16c3fa_cryptolocker.exe

  • Size

    91KB

  • MD5

    b60c4de3fb4aa80acd67e125bb16c3fa

  • SHA1

    dce92e3f72e96dc6f3d06bcbfa2e073d72d21e91

  • SHA256

    cfee4864a0b9418a1cf617f281b2601fedd0f65f193884c63ef147de5adcd943

  • SHA512

    ded9c8cf7e532874fb232a5668d7a131ba43984e203b9e443da7cf61a7b5b59d552ffa618f91b43571acb076e609b7dfa4acb9cf06658c14774f07134cb741b2

  • SSDEEP

    1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0P:AnBdOOtEvwDpj6z3

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-17_b60c4de3fb4aa80acd67e125bb16c3fa_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-17_b60c4de3fb4aa80acd67e125bb16c3fa_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1324
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    91KB

    MD5

    8c7a3bc09a9642be7e92fd36bdc9dfb6

    SHA1

    4e63cb586d6219fb4c303939390c82bb6f3c3e04

    SHA256

    0dcf694af4de44f77c4354276809f4110680339b0cfd3f0071e5802c38301b8b

    SHA512

    c87f0defbf9f9c893620d23bb153bbebc7b835ac28860bd21a39368048c7c4d72ff6b771c3b1d3e71f591b3d42c58b863ec9afda0cbf73052ebf96a106fd6664

  • memory/1324-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1324-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1324-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1324-4-0x0000000000710000-0x0000000000716000-memory.dmp

    Filesize

    24KB

  • memory/1324-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4132-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4132-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4132-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB