Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    12/05/2024, 18:33

General

  • Target

    2024-05-12_a789a323eba6ae1a9548843cf5b89f59_cryptolocker.exe

  • Size

    77KB

  • MD5

    a789a323eba6ae1a9548843cf5b89f59

  • SHA1

    0fb03c9ef279d786ec0b7fb100f7dba8fdf35525

  • SHA256

    f1ff3af30819a291305660aa2e0b1e4082302df33f064c22d91ff398b4a58abe

  • SHA512

    3222c4277252ad9de7dea288fa225b5929da4f62abc77563afa34fac3f40ff46eb10729a21d07b2dd3fa90ced2355a35722d094a75a65bc6bce4da6ffd2f93e9

  • SSDEEP

    1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdxPUxB1u:T6a+rdOOtEvwDpjNtHPp

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\2024-05-12_a789a323eba6ae1a9548843cf5b89f59_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-12_a789a323eba6ae1a9548843cf5b89f59_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    77KB

    MD5

    265965d1542d2d13f7d9ce358449b399

    SHA1

    506912af87ad2f0dbb987f959b75e73609f60d9e

    SHA256

    cf297f8825ba6e36c8d599ed78e7efe5abbabcc79413c3b3af7989b85a781654

    SHA512

    42bccfcbb494314f2b8126c15d5b98f8937a192c67ff6a58151247700471abebc360d65c1437a16461217fc72cc94766374e1edf26a6f7bd153f8eb4b7ebcf48

  • memory/2232-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2232-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2232-2-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2232-3-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2232-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3004-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3004-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/3004-18-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/3004-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB