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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/03/2024, 15:27

General

  • Target

    2024-03-08_13eaf2f3080d0b45d0e204dac6866f79_cryptolocker.exe

  • Size

    45KB

  • MD5

    13eaf2f3080d0b45d0e204dac6866f79

  • SHA1

    30d93273e8554782d243655eb396ec5ae248bc04

  • SHA256

    00f35eb22416ab9f126697c7227c857155c4645e474f00584f5b2abd2a97a3e5

  • SHA512

    986146905c3f79de2622aba6b38ab8e4b376429da974f78f606b6560c7a023315b5d0f39668af7d2488628db7f096c6659bf4c6901fdb1983039732cc5217f1b

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1wsk:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ12

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-08_13eaf2f3080d0b45d0e204dac6866f79_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-08_13eaf2f3080d0b45d0e204dac6866f79_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4756
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:4132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    396c3dfcf7d13988bea46e7c0bf0b9ff

    SHA1

    00aad7fc3d2e094b50ab135bad221b9f6ff70b2a

    SHA256

    552c57f0f8fa7fb90cfdfd1095cd3e9cf0f854578679f64dc518a84f609912c2

    SHA512

    644f4c60bef44730c8dc050c52a56830a33d3e27c7f2252746a9196d712475667d2d569d53f34d86134433d8ee623783556e93f230f8c18ea226e443d6cc07e8

  • memory/4132-17-0x0000000000460000-0x0000000000470000-memory.dmp

    Filesize

    64KB

  • memory/4132-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4132-21-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/4132-27-0x0000000000460000-0x0000000000470000-memory.dmp

    Filesize

    64KB

  • memory/4756-0-0x0000000000450000-0x0000000000453000-memory.dmp

    Filesize

    12KB

  • memory/4756-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4756-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4756-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4756-18-0x0000000000450000-0x0000000000453000-memory.dmp

    Filesize

    12KB