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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10/05/2024, 03:52

General

  • Target

    2024-05-10_73a09958b00d0bd0bc94e0afd556f99a_cryptolocker.exe

  • Size

    81KB

  • MD5

    73a09958b00d0bd0bc94e0afd556f99a

  • SHA1

    432b3525c7231ec3127d512d5a2a71198bbbda79

  • SHA256

    0b717392aed9de2dab2c1298137c396c81bbe9f3dc1c444683a8e40422be40c5

  • SHA512

    a83ce68de2c15f6d762086e8402c5ac65b07ff59812ce382b52d7e1fae338204ed324f310b8eeec281cdc1a0e3513ca556c479456adb16954e8e2f47317d4541

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMr3i:TCjsIOtEvwDpj5HE/OUHnSMc

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 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\2024-05-10_73a09958b00d0bd0bc94e0afd556f99a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-10_73a09958b00d0bd0bc94e0afd556f99a_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    82KB

    MD5

    8e1d4e2a95f70af38bb65115ab3ec669

    SHA1

    2e51efb93af4e3ce29699de3ed1f638756939626

    SHA256

    5b6825ff27ce9b53644549dbed988fc72a8a057e33dabea7882aa08ca9c9f14d

    SHA512

    be41d2cfdd0b7487d2d146405f3b4bce745074cefedeeab06aaf950d1afb9b03c218f19398b33eaf1f9bc2ac4c0895b0a0bfc13d9e1394aa8ddc0d55cf786398

  • memory/2992-16-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2992-18-0x0000000000310000-0x0000000000316000-memory.dmp

    Filesize

    24KB

  • memory/2992-25-0x00000000002D0000-0x00000000002D6000-memory.dmp

    Filesize

    24KB

  • memory/2992-26-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3016-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3016-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3016-9-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/3016-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/3016-14-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB