Analysis

  • max time kernel
    136s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/10/2024, 00:26

General

  • Target

    2024-10-18_1b7d0fbba51807899194b3b8c43044a7_cryptolocker.exe

  • Size

    61KB

  • MD5

    1b7d0fbba51807899194b3b8c43044a7

  • SHA1

    d0c057f3aa9a9a1ba6347226f9ca10f9068e208b

  • SHA256

    e0e19901d39970b1934a7f728dda65e9d504ec0c3fe26a420781fc2b42c575a9

  • SHA512

    66da65997219434d3a64536083c0c410cb1d7562901bd57e5c7f1d5dd548d378c0b9872fd8e1609a96f10e388b58ebd8eb643b27e906b2dd04030a0504561a4a

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/RvDQeduJHqqnz10Lhx:ZzFbxmLPWQMOtEvwDpj386Sj/RsB0j

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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-18_1b7d0fbba51807899194b3b8c43044a7_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-18_1b7d0fbba51807899194b3b8c43044a7_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1196
    • 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:2808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    61KB

    MD5

    1a112e27cdccc78ef62e3636e5dc93c2

    SHA1

    02a5fedaacbadb0edd537f876e796f2fd18f2a62

    SHA256

    f517d9d060f73109b2db34f0da76d0b943e3abd74c04d93c0c82a4368cc76b79

    SHA512

    a350b7757e0d570fdd283c4fdba5d8890a19621be0db40c6de2bcca0c6a756e5e23eda67d76a3161d6ae7676161a1a11f4de07b85f9f4e7ed81b9a4e2083f347

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1196-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/1196-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/1196-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/1196-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/1196-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2808-18-0x0000000000450000-0x0000000000490000-memory.dmp

    Filesize

    256KB

  • memory/2808-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2808-21-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB