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Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22/05/2024, 22:31

General

  • Target

    2024-05-22_97d572bf1217b39e61c5475f4f996d87_cryptolocker.exe

  • Size

    79KB

  • MD5

    97d572bf1217b39e61c5475f4f996d87

  • SHA1

    72e15b7d4a54cc30d130e8adfe4a2f5a1891f68b

  • SHA256

    f7c3dfa12b25de93ef2855cbe051ce717681dd62f38c3b896a48215aa9e5ce6e

  • SHA512

    4cb390bfa82d2933b6d3d74ebfe113274d82149d73ff4b5c62437ec754229f6462d5b0f3fad1494adc07256ed9788772849916a4cff0a49a5f0f34e06246d095

  • SSDEEP

    1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdxPUxB1U:T6a+rdOOtEvwDpjNtHP/

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\2024-05-22_97d572bf1217b39e61c5475f4f996d87_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-22_97d572bf1217b39e61c5475f4f996d87_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    79KB

    MD5

    663f27d597a89ae19da26187e293e0fb

    SHA1

    ee84b5d53ef9f59f6125f93b2717a6c69a16b131

    SHA256

    68ec8d1e335189635c97d4bc988ed1f8daca28afcac00548d46dfb851e12dc64

    SHA512

    fd562ab9e26c2cb9aaba7954ef318789a0a541d188c8af2950d42c2bff9a7ecece95e9389d430d54bd652df4cd31a73efdc0e0007912e59c4c205223900d9640

  • memory/1284-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1284-1-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1284-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/1284-9-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1284-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2568-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2568-18-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/2568-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2568-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB