Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 03:27

General

  • Target

    2024-11-20_61f7d39c9bbd2ca976c9b32fa42ac8fa_cryptolocker.exe

  • Size

    25KB

  • MD5

    61f7d39c9bbd2ca976c9b32fa42ac8fa

  • SHA1

    ad5544facbe4350aaa055ba4459033aa1fc1c165

  • SHA256

    e5acfca561cd409e4de35d9ac1154fce16569c14385ca116dccf4e7dfe1e3bfd

  • SHA512

    16d2c6c3d45d48220335a3d3cce8cdad8ccd55b39627500ffe5d4b46546f2a6b6d7bdfef8b44933f3511a41cb11f9fa62cb708394d616c38a3578bcbf23efb52

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/P4QtOOtEvwDpjq:ZzFbxmLP4QMOtEvwDpjq

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-20_61f7d39c9bbd2ca976c9b32fa42ac8fa_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_61f7d39c9bbd2ca976c9b32fa42ac8fa_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    25KB

    MD5

    5c730be97e126e25668328ada44e4b83

    SHA1

    b3b70afc23b358125c134c84fddb779ff6a96db0

    SHA256

    c5b9c4c59b956040f2d3a0ac12714d68f1da94715ed0834d37aaa3e3843a2741

    SHA512

    6c2523d916bd421912333466b3ee7629ba14a7ac046d8187712b8f856a497a90c61de25afba7c6d37a5b9bd86aee813a25be957c70d9570e5e0991461b66707b

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/540-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/540-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/540-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/540-3-0x0000000000610000-0x0000000000616000-memory.dmp

    Filesize

    24KB

  • memory/540-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/2416-19-0x00000000021E0000-0x00000000021E6000-memory.dmp

    Filesize

    24KB

  • memory/2416-20-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB