Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2024 05:39

General

  • Target

    2024-10-01_c8bf7e9b875d10f0c4861aa849c11574_cryptolocker.exe

  • Size

    78KB

  • MD5

    c8bf7e9b875d10f0c4861aa849c11574

  • SHA1

    1cac7f0d30bd249795f173820fd83c52ce9e91d7

  • SHA256

    467ce498fde31ab2db20582001e6cf87263fcb2c77c0d7a57db0618703a02836

  • SHA512

    03f04c4981267b1872af138e127f6657ef479df7f2977fcd11aed743194a99ec4c2e89ba376f2bb035892b58d5b94709cfccec7a38ec433353445d78cde917b8

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUO:ZVxkGOtEvwDpjcay

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 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-01_c8bf7e9b875d10f0c4861aa849c11574_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-01_c8bf7e9b875d10f0c4861aa849c11574_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4916
    • 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:3496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    78KB

    MD5

    bf6401097d4b4e836b210ea13a91419a

    SHA1

    90eb99f13da1347e95fee08c23a917626b073156

    SHA256

    7af3d585e85615d4a17003f28530bf20245fdfc1b640481f0a5c2ac201ed03f1

    SHA512

    d75cf59aaee1d177a944c6aa5084e6f9ec72b46ce134ded144f7661399fcf1b271b6a44f3c4c4740583fa3e672020cafed4b634074bc924a5e4a1945bc5e4ba7

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3496-18-0x0000000000450000-0x0000000000490000-memory.dmp

    Filesize

    256KB

  • memory/3496-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3496-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3496-49-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4916-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4916-1-0x0000000002310000-0x0000000002316000-memory.dmp

    Filesize

    24KB

  • memory/4916-2-0x0000000002310000-0x0000000002316000-memory.dmp

    Filesize

    24KB

  • memory/4916-3-0x0000000002190000-0x0000000002196000-memory.dmp

    Filesize

    24KB

  • memory/4916-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB