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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/04/2024, 07:49

General

  • Target

    2024-04-16_ff6a070d35a3f8347d0f0da50d03d487_cryptolocker.exe

  • Size

    65KB

  • MD5

    ff6a070d35a3f8347d0f0da50d03d487

  • SHA1

    05dabf67c118cf951dbed86594c72d12146a543e

  • SHA256

    b71ad1688f924ff8ea830723005b9f37758941226f9ce66f0611d204be388707

  • SHA512

    c0b9e3c12af9173cc1a7247f30281d35694c26b1ef441098f3bdfa007dfa7771d669422ea9657cc4fabd68e820bc4b614292aa1b64c5024a9a1c0fa6f81c83ab

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mLZ5kJ7AK2c:zj+soPSMOtEvwDpj4kpmeLmQlAlc

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\2024-04-16_ff6a070d35a3f8347d0f0da50d03d487_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-16_ff6a070d35a3f8347d0f0da50d03d487_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    65KB

    MD5

    87f1bfe5e7af4a8d88e6a748bd68ff30

    SHA1

    3a59632c38ca8dd9673b355c2b975fbd5e4ea3c2

    SHA256

    d995eb43e88d0cdb8e5eee45837fa6d4808f1e9b69e637c945a4c26374a7aa9f

    SHA512

    484b13a773f1cec4d7d8d6e21c5b67a5d96bd385156314ed29c70f2f85bf45cfbb0c65257155dee8df671d5de95df2ee378b574331f6964086a076a89ca9d8dd

  • memory/1872-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1872-19-0x0000000000200000-0x0000000000206000-memory.dmp

    Filesize

    24KB

  • memory/1872-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/1872-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2280-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2280-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2280-2-0x0000000000410000-0x0000000000416000-memory.dmp

    Filesize

    24KB

  • memory/2280-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2280-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB