Analysis

  • max time kernel
    149s
  • max time network
    157s
  • 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, 03:37

General

  • Target

    2024-11-20_d0f6ae5a0c4d4b6ef1cbb8624f2a21e9_cryptolocker.exe

  • Size

    72KB

  • MD5

    d0f6ae5a0c4d4b6ef1cbb8624f2a21e9

  • SHA1

    dab1133767c5ac0259e2865ab264e0e8d6111ec3

  • SHA256

    56118b7538aef78ebb8318c5765d092fdfd1afd7824f50bd986871baed9caeb1

  • SHA512

    b6f9415d5d02d910c0b56410107a20a7378d1e9ffb89845fae5af7fd9cfc28b149ab2aa149deb5537810b1c9848acc4295065058c3f27ffc8a283122de50fb2d

  • SSDEEP

    1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs97:C4Q2c94OtEvwDpj4H8zO

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\2024-11-20_d0f6ae5a0c4d4b6ef1cbb8624f2a21e9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_d0f6ae5a0c4d4b6ef1cbb8624f2a21e9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4472
    • 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:3508

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    72KB

    MD5

    2d72b1ddfa12c422b75c521f193a4fde

    SHA1

    346706a79e6b5f4d1366c699a5c2201b57557883

    SHA256

    a2220a322385e9147c7cddbc1058bf584d97c0488b21766ccb56315af2334f17

    SHA512

    2f5cfc202eede5b893a290fd18b8a15231851facfc4b4e0f679dd18bfd900e21bbb3de8b48eea2d5b6cf40cf5c2a327c550f3e6b8279d89a4983f2ad2256fe98

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3508-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/3508-26-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/3508-50-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4472-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4472-1-0x0000000002200000-0x0000000002206000-memory.dmp

    Filesize

    24KB

  • memory/4472-2-0x0000000002200000-0x0000000002206000-memory.dmp

    Filesize

    24KB

  • memory/4472-3-0x0000000002220000-0x0000000002226000-memory.dmp

    Filesize

    24KB

  • memory/4472-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB