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Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    23/10/2023, 19:53

General

  • Target

    NEAS.2023-09-06_dca794bf234757ae9149c821ab42e65a_cryptolocker_JC.exe

  • Size

    60KB

  • MD5

    dca794bf234757ae9149c821ab42e65a

  • SHA1

    e28550c0cecf67a9b5eac8e1997854b8526b867a

  • SHA256

    1e1463a796820afc6f903142cb52472e732ec680a4394abe5b92e078cf330859

  • SHA512

    550093c39b759ae3efa96d5022e0d8ede8f28f80fa393cc66468f7122ac32e5b953a61d8cf3593bd2c001d4f90aa8a844fa1a0a2f379af0e2dc12f8b581237e1

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGElUAx:6j+1NMOtEvwDpjr8ox8UDElbx

Score
7/10

Malware Config

Signatures

  • 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\NEAS.2023-09-06_dca794bf234757ae9149c821ab42e65a_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-06_dca794bf234757ae9149c821ab42e65a_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    60KB

    MD5

    2163fd7e1c98285c0c4850504220ded7

    SHA1

    d4fc2f47d12f2307895368403913b4b50d7026bf

    SHA256

    618cb5ac4732ef008f961f8c47f34f0a934c9e33c536537986bdaa43247096fd

    SHA512

    0788c0ee3be1e4a39fab0432b0e44a3cb4501e9284a03621b7555593b605208d5c4e354b7df3379a8b8fe86a9d6deb5c363288754d50f529b51e2f087f07cfa5

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

    Filesize

    60KB

    MD5

    2163fd7e1c98285c0c4850504220ded7

    SHA1

    d4fc2f47d12f2307895368403913b4b50d7026bf

    SHA256

    618cb5ac4732ef008f961f8c47f34f0a934c9e33c536537986bdaa43247096fd

    SHA512

    0788c0ee3be1e4a39fab0432b0e44a3cb4501e9284a03621b7555593b605208d5c4e354b7df3379a8b8fe86a9d6deb5c363288754d50f529b51e2f087f07cfa5

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

    Filesize

    60KB

    MD5

    2163fd7e1c98285c0c4850504220ded7

    SHA1

    d4fc2f47d12f2307895368403913b4b50d7026bf

    SHA256

    618cb5ac4732ef008f961f8c47f34f0a934c9e33c536537986bdaa43247096fd

    SHA512

    0788c0ee3be1e4a39fab0432b0e44a3cb4501e9284a03621b7555593b605208d5c4e354b7df3379a8b8fe86a9d6deb5c363288754d50f529b51e2f087f07cfa5

  • memory/2608-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2608-18-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2608-25-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3052-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3052-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/3052-3-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/3052-2-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/3052-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB