Analysis

  • max time kernel
    96s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2024 02:33

General

  • Target

    2024-09-13_472ad083386fe381da41fcc48b1ada7b_cryptolocker.exe

  • Size

    72KB

  • MD5

    472ad083386fe381da41fcc48b1ada7b

  • SHA1

    b5ba9cf05eddd9185d435b48f08b1c850bb63645

  • SHA256

    0cbd5a918b40cd533fb4491dfc0ad935dbb5a076c71b6ba026a554a9359810fa

  • SHA512

    720b8f22996a77aaf21edea2bd8bb3770e877f007b2666b8543e1d5d1db3b6d2161f7da75d1d3e1a277c0dae690c6355574065d32e7096ce0e39c13de146507c

  • SSDEEP

    1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs95G:C4Q2c94OtEvwDpj4H8zN

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
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-09-13_472ad083386fe381da41fcc48b1ada7b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-13_472ad083386fe381da41fcc48b1ada7b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1860
    • 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:4776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    72KB

    MD5

    e03237527d15ae98b0a3dde73ae20b51

    SHA1

    e6096e3e54e6ca35174c1b21ef66c9456aea7dba

    SHA256

    3bbcd17602846844e765d7f72502aca3058be590584fe49ffb93ee12d8c2f313

    SHA512

    58d2967afb1d0cbc55d6b71eb8468a31020a99cbf8a81ca2449b88e945e98f8b28bada6ea6dc1bcb363793b0db4ff06df5ab05c5a49cc922d5158379a72137ce

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1860-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1860-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/1860-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/1860-3-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1860-19-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4776-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/4776-26-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/4776-50-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB