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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/04/2024, 20:50

General

  • Target

    2024-04-05_c7a0b9d2a4b2a5ab5fcc8b69559184e6_cryptolocker.exe

  • Size

    63KB

  • MD5

    c7a0b9d2a4b2a5ab5fcc8b69559184e6

  • SHA1

    4f078dc3672caa8a42ddd16f3bdc05d02443e429

  • SHA256

    73f24bde53cbd09223213fd2a99672ba68c1bc84741295723a7b9e5f624d05be

  • SHA512

    01216ea4d77348eb86e9d2d8c1d8ccf85d98746ba0250b784da5c87724055d423f5e6684d6adbdc43ff2fdafc8d022b1d0d6bb575f5ce610807c1bd258686814

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mnVwfXQ:zj+soPSMOtEvwDpj4kpmeLmnwQ

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\2024-04-05_c7a0b9d2a4b2a5ab5fcc8b69559184e6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-05_c7a0b9d2a4b2a5ab5fcc8b69559184e6_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    64KB

    MD5

    57def9db65d85406c2dab18ec48f9a3b

    SHA1

    da297adcb5632f96ac014b6bd4a8641eea310be0

    SHA256

    6dfd31cb00778fc85d6ae675a5e62496b9b40bb000fcd8aa7cf76b9798e48640

    SHA512

    98231123e5f9501546aa4067dd6f3f7e4d2f9f4147c539d4f722750a0db895baee45f54d4bc4f9ff44aa4bdf70b2dd472191181c0fc0413f49e213d8bf10ec88

  • memory/2208-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2208-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2208-2-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2208-3-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2208-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2620-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2620-18-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2620-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2620-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB