Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-08-2023 19:29

General

  • Target

    a47cb33020f86f7f5724e4fb78d3586d_cryptolocker_JC.exe

  • Size

    45KB

  • MD5

    a47cb33020f86f7f5724e4fb78d3586d

  • SHA1

    03943550bd487ac5fa647ea8556c827561106664

  • SHA256

    8454def36f82fa54465921b95d2f3bb07a45ee3ca5a8c5e73361bff6125dfff3

  • SHA512

    511cd7aa661f3e44e90fb385c0c171693a16e993322c89391d2d54487a9c3b7c46248b78d1da9dc869cf7f97f5ec886c1dbd5994801931071aedb47aa83eaaca

  • SSDEEP

    384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/W/rJ+xLrs7cwcx4MWfdp:79inqyNR/QtOOtEvwDpjBK/rJ+Nw84D

Score
7/10

Malware Config

Signatures

  • 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\a47cb33020f86f7f5724e4fb78d3586d_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a47cb33020f86f7f5724e4fb78d3586d_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1532
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:5052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    46KB

    MD5

    032c6783f40f797f6df4dee1f250e0b6

    SHA1

    002dd436363ab3cd9933171702760f14b23eb767

    SHA256

    f71de3a6d70d17c3e15f9d131b6dfd6b297d53dfd7d8ac7e3ae434e3ad043bba

    SHA512

    75b9849f2ee3ab35ea25d9f57f5b143e123508902fc3105bf81515bd229f285266070e6abbf574b605e70f26636698c9788cbfc9ee2f980f0e8d42d73e064de7

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

    Filesize

    46KB

    MD5

    032c6783f40f797f6df4dee1f250e0b6

    SHA1

    002dd436363ab3cd9933171702760f14b23eb767

    SHA256

    f71de3a6d70d17c3e15f9d131b6dfd6b297d53dfd7d8ac7e3ae434e3ad043bba

    SHA512

    75b9849f2ee3ab35ea25d9f57f5b143e123508902fc3105bf81515bd229f285266070e6abbf574b605e70f26636698c9788cbfc9ee2f980f0e8d42d73e064de7

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

    Filesize

    46KB

    MD5

    032c6783f40f797f6df4dee1f250e0b6

    SHA1

    002dd436363ab3cd9933171702760f14b23eb767

    SHA256

    f71de3a6d70d17c3e15f9d131b6dfd6b297d53dfd7d8ac7e3ae434e3ad043bba

    SHA512

    75b9849f2ee3ab35ea25d9f57f5b143e123508902fc3105bf81515bd229f285266070e6abbf574b605e70f26636698c9788cbfc9ee2f980f0e8d42d73e064de7

  • memory/1532-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1532-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1532-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1532-3-0x0000000002230000-0x0000000002236000-memory.dmp

    Filesize

    24KB

  • memory/1532-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/5052-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/5052-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/5052-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/5052-27-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB