Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 12:28

General

  • Target

    2024-10-17_7375c42e1222c2b1143e87af5452bf1a_cryptolocker.exe

  • Size

    45KB

  • MD5

    7375c42e1222c2b1143e87af5452bf1a

  • SHA1

    d9768fe9e42c59ae6c28b42be3c50695bd9e2444

  • SHA256

    a18d35f6738ce504a951d734bbfdacb17aecf9f8f805949d25b54c2612adb41f

  • SHA512

    a403ad51cd4f28687973a8f0f3c34cc5559891fb01020d64f06dfca391fe7955605337b1324bb7ae395cb4ed6d528638831afe3bcbd0d0d523e36daf67c8754c

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLtldedo:xj+VGMOtEvwDpjk/em

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 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-17_7375c42e1222c2b1143e87af5452bf1a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-17_7375c42e1222c2b1143e87af5452bf1a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3336
    • 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:2776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    485206f3058785612fa764453ab3fc9e

    SHA1

    7fcf310ad0f8909d71d32df046dda0349bc09397

    SHA256

    f0921b4ec9e1e6d33ffab68acd822243067df03441f0120178fec4e861384732

    SHA512

    bbb562262e9176ebdc48f77c9796a1ff5d16c7dd7cc15c3af98b6f1451d5e8f9cff6cf2a613cdb67ad5fb26bfd503aa85bbb72d751a5f955cf4cbdc5051081f3

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2776-19-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/2776-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2776-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3336-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3336-1-0x0000000002310000-0x0000000002316000-memory.dmp

    Filesize

    24KB

  • memory/3336-2-0x0000000002310000-0x0000000002316000-memory.dmp

    Filesize

    24KB

  • memory/3336-7-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/3336-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB