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
    19-09-2024 05:23

General

  • Target

    2024-09-19_0d4b049616cc5d9052369037f0623a06_cryptolocker.exe

  • Size

    37KB

  • MD5

    0d4b049616cc5d9052369037f0623a06

  • SHA1

    ccb0074358432fe94833271f0ffd0288c1730ae4

  • SHA256

    0f40a188d7d2d1322d1e5bf579212a365c025e7f7572118fb3ea80b6d671dbb3

  • SHA512

    74587c19d2105048ceb158f338f0aa24679bb8dbbfca7b6e75c85c0a0aa50b48437a5ca178464dfb670a037f17561c9313bc36999ea01db91b10249357e60a12

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRl9:m5nkFNMOtEvwDpjG8hhXX9

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\2024-09-19_0d4b049616cc5d9052369037f0623a06_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_0d4b049616cc5d9052369037f0623a06_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3800
    • 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:2240

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    07570629ed04f6ebf9ade3ca88d34fa6

    SHA1

    b7e4cdca733d815cbc13dc0da65db84a7a7d21e3

    SHA256

    0d82f6183bf13318ec011d4b5b343a2c4e793b0e12572be5dd8071afb70d555f

    SHA512

    cb44c75cb49262bf7ac599916ec3de1fab4a15f0de0f44f29214a888668b4c2644f15ee41bf4819a5eaaf0fb08121b196e93831e819ab5038204aba75292b1bd

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2240-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2240-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2240-50-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3800-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3800-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/3800-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/3800-3-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3800-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB