Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/03/2024, 04:10

General

  • Target

    2024-03-16_2ae80faa9abe8277c8917376e5bbcc5c_cryptolocker.exe

  • Size

    59KB

  • MD5

    2ae80faa9abe8277c8917376e5bbcc5c

  • SHA1

    c87deaa71965025a602a48d063774650f11b0206

  • SHA256

    219637fa67386ee7b0152d87570eff014e57f88437a18d542ab030838f3b71bd

  • SHA512

    6df0038f8558e28e3e849369c127ac2141768ca14e3a48318d9df13de650134419f48acabb9b8281626d061ea7592cb125ad8a02b5b8bf210423fa66825e0c65

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYPO+Fwn:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+I

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • 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).

  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-16_2ae80faa9abe8277c8917376e5bbcc5c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-16_2ae80faa9abe8277c8917376e5bbcc5c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    59KB

    MD5

    63bb039325a7634d890fe539827018ae

    SHA1

    4437bd48febee51c40e339d3b1b7525b311177dc

    SHA256

    e0fd804bb4052bb5b0c5235fdf64f71665374de852370455f048b21fe164c157

    SHA512

    473f87371f899ec499518801cf0fd4dba1489b2098b41f00b2dc7930b6047ac8da9e8657078beb6be049d60078e1feb0db4b4a8e5b1ae701c68999c5d1c181c0

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1688-19-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1688-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/2084-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2084-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/2084-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/2084-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/2084-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB