Analysis

  • max time kernel
    94s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-09-2024 06:44

General

  • Target

    2024-09-07_9470fa3ea6b970cd28c53a98ef55828f_cryptolocker.exe

  • Size

    48KB

  • MD5

    9470fa3ea6b970cd28c53a98ef55828f

  • SHA1

    d5dab009d0ff505a0f9b63a0ea493c8fb07b1714

  • SHA256

    de01b1da41599c6b6d15505e1c78fd59d828c10f95d2e730a5332e58ea02e437

  • SHA512

    fb1c614e1d75837ec58430cb0ba450ef9abc7e5dda753e9a93f7611865547f843b7f075ddbab7411bfe545b607a5c9e257a860828b32d9c53ea65f579e2e578d

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaN4wj:xj+VGMOtEvwDpjy+TN4wj

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-07_9470fa3ea6b970cd28c53a98ef55828f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-07_9470fa3ea6b970cd28c53a98ef55828f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4608
    • 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:4772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    48KB

    MD5

    bc21416f0e4099fea5c37540bb4d421e

    SHA1

    e293c914ab7b64d33996c1ceacaa3322cb648db6

    SHA256

    af5662eb6c96cfefeefa9f8f99460afcbde8b0b0bf9b724a06f00797c70a9619

    SHA512

    ff6f08cd7895011145ee4729996c734db1c5335e25b53ed469745af86e9759904b718fef01a60dc1ba6fac47b09ab10974f3da3485957a45db6a212e8d1a2d7d

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4608-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4608-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4608-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4608-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/4608-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4772-19-0x0000000002050000-0x0000000002056000-memory.dmp

    Filesize

    24KB

  • memory/4772-20-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/4772-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB