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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/09/2024, 04:41

General

  • Target

    2024-09-25_4362ad0efa626bf6cd17e6e6b88e9151_cryptolocker.exe

  • Size

    119KB

  • MD5

    4362ad0efa626bf6cd17e6e6b88e9151

  • SHA1

    5b1d637294aeac70290e7ec663ec55f6cdfccc59

  • SHA256

    bf6dad9eddaf8df35de21465bfb0faea3f6fa8c7295398e8f70b6defb642342c

  • SHA512

    bcfff2364a1c174e9f04a7e8001dc4b110686bc1605ab0082b5afffe8d5cbbc58d38c665c0678de9fe7f0ee8cd6bc0d436614f6299288fc3c47aae167ca26533

  • SSDEEP

    768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBTX:gUj+AIMOtEvwDpjNbwQEIPlemUhYH

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\2024-09-25_4362ad0efa626bf6cd17e6e6b88e9151_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-25_4362ad0efa626bf6cd17e6e6b88e9151_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3192
    • 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:4244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    120KB

    MD5

    bfc91c802549a6040604249f67376856

    SHA1

    932620a8af0bf77430bd6e6f496d9e33ba64e2f4

    SHA256

    79da8d7cfc9df31a09e3bc7ccd6ebb15497297be7671325e6284f1652767ec70

    SHA512

    75f83c2a686a49c5a776d961e26632d21336c9b3417df2145ee36c1067906f41a4167e11abc6bf2acde3fc6701c0d25e59a516a88070edc2b37da248c318edc9

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3192-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3192-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3192-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/4244-23-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/4244-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB