Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    06/06/2024, 21:34

General

  • Target

    2024-06-06_bec9d5c58c87fc5d6033ea5c204e0430_cryptolocker.exe

  • Size

    67KB

  • MD5

    bec9d5c58c87fc5d6033ea5c204e0430

  • SHA1

    8524e1a2fd61cdc49410100e44ceab6de6c3d452

  • SHA256

    424e6095c1bb00a1106df238301074365e478236b0517f22835fccc4ff8e2eb6

  • SHA512

    62709d8b8451feeb9aec6a5748f61bfe35ff37515116a55124ed986a05a40c8d29cd987989454c03c3620ebb41e7875bf904b9a51b99a908837322b5fc565f57

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYZ8xZVg:1nK6a+qdOOtEvwDpjW

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\2024-06-06_bec9d5c58c87fc5d6033ea5c204e0430_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_bec9d5c58c87fc5d6033ea5c204e0430_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    67KB

    MD5

    aab2fbdba3e556a3d7dba40ad92efa9e

    SHA1

    bb57a0a6b6456131ece448d0b323fb0dd12b1060

    SHA256

    1c316d9da0e963550ca6337b8753b5eb5a381a71e6d8e484d940b66b5a264004

    SHA512

    2d3ce6534e6c06649fce67dcfbc170e08bcc552023ad2eecff33d746baba0a48d9d1b51c5de404b2d3350ae97901d2073b5a549dd67f4eda333536f3677a8b9a

  • memory/2044-0-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2044-2-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2044-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2044-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2044-15-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2868-18-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2868-16-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/2868-25-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB