Analysis

  • max time kernel
    90s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    06/06/2024, 21:37

General

  • Target

    2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe

  • Size

    62KB

  • MD5

    da17f22e1885d67ab904da6ec14a3b81

  • SHA1

    144320ac801abdc010536e53e00c633d849c2aee

  • SHA256

    34ead6de9987930251d6c5645271a068c7de8b211cda9ba13ba3f56871201986

  • SHA512

    b3376054e2dc6aa131775dc68525c6fe6ed3c401311403fa63e53621775fe72c7dbad5a30f1ac0b72c71af2df67a61a17e1f3c002cf877daad421f937827c25a

  • SSDEEP

    768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9e:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWTn

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_da17f22e1885d67ab904da6ec14a3b81_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1888

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          62KB

          MD5

          e30862a4214636d2ee9c14a8eaabec47

          SHA1

          f61cab6fd53f6bdda5e20f645fa92e74b4afa2bd

          SHA256

          cc479f440f76cabaaf251f85bcf2cf9e8105dd1b2e7302549042bc261c92f49c

          SHA512

          ff507fd44f4c3e8752bf16fbe5433b0d690e06d3bc68163939571f01c18a2bb1ffbd9b8045e1290cc9746d9068cbe4cf76fca2a9f57ba08fd49549628c05b32d

        • memory/1160-9-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1160-13-0x00000000006B0000-0x00000000006BB000-memory.dmp

          Filesize

          44KB

        • memory/1160-8-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB

        • memory/1160-1-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/1160-0-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1888-25-0x0000000000500000-0x000000000050B000-memory.dmp

          Filesize

          44KB

        • memory/1888-24-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/1888-17-0x0000000000380000-0x0000000000386000-memory.dmp

          Filesize

          24KB