Analysis

  • max time kernel
    94s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 03:25

General

  • Target

    2024-11-20_3f62de0f8a9850ec74260ec7795c6dac_cryptolocker.exe

  • Size

    62KB

  • MD5

    3f62de0f8a9850ec74260ec7795c6dac

  • SHA1

    c302ee84b72b0958e978843499d460645384597b

  • SHA256

    fa914df21fca9ea2091a1dfb2b4313d839bee8fca911ebefb25a4362cded5540

  • SHA512

    6b6a5638374c26ddc8910782057bc90ea239baba3ecb571d63dc279bfcf88548cf16dcc7c5dbeeb37422cc8e4dc2fbb1b0bf484132c896d7acc8cb3378a46e47

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ36uca:ZVxkGOtEvwDpjcaF

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\2024-11-20_3f62de0f8a9850ec74260ec7795c6dac_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_3f62de0f8a9850ec74260ec7795c6dac_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4776
    • 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:4176

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    62KB

    MD5

    f4368e2b9a8075cc87e972a6ea80e892

    SHA1

    c95dc92bb8b8e2cab99ba210398ce1477616994b

    SHA256

    09b4219116dea395f31994c32cf1d0f44efdc2f03719c1dfb57c8cdd485d677f

    SHA512

    a5da4c81e6180ed56cac05fd3796e4309af6df981f9f5da0aae694a14010d9b2cd6c3872a3d6bd19505ec2b6f78ed18769df1c2772d4934dba02f57c67b52fad

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4176-19-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/4176-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/4776-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4776-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4776-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4776-3-0x00000000006E0000-0x00000000006E6000-memory.dmp

    Filesize

    24KB

  • memory/4776-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB