Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    13-02-2024 08:13

General

  • Target

    2024-02-13_c6f6ba753258533fa3ad68e473538f41_cryptolocker.exe

  • Size

    94KB

  • MD5

    c6f6ba753258533fa3ad68e473538f41

  • SHA1

    5127e103a62706d8b16be1a8df1a49d7697e456a

  • SHA256

    628dcd3d404bcd764c109594be652c5f7769c21e9461c9d250fa96c0615a0347

  • SHA512

    89db464532d686172c68d011551ea3c86643603e3d22fda1273b8fb11f99bda5ab7dd75892a9e13908702d44ca2ce270781a57118bfa0a12cd4070cb8dab1fb6

  • SSDEEP

    1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp015b:AnBdOOtEvwDpj6zH

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 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).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-13_c6f6ba753258533fa3ad68e473538f41_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-13_c6f6ba753258533fa3ad68e473538f41_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    95KB

    MD5

    5122bf18822190042cbe55f921214ebb

    SHA1

    bf42d0259dec87ecf2491be17de08435b5fbbd3a

    SHA256

    0c5edfa682d3e0ea6bc6881218ae84508ad20be96d25bf879261493908e7e4cd

    SHA512

    3b23f73ddd16ff539b0717e4fb05ff93004b8825e3d18323234baa9b235443cd0ab21a21760ebebfde56b23c4be87ba43dcac019f1c3b6855a33de006a5ae6d6

  • memory/2760-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2760-18-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/2760-19-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2760-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2916-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2916-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2916-2-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2916-3-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2916-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB