Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 19:16

General

  • Target

    20240521a8a4018b79c77a0cb13644dc06adecebcryptolocker.exe

  • Size

    68KB

  • MD5

    a8a4018b79c77a0cb13644dc06adeceb

  • SHA1

    e41389b74f55de64cd2937d2c4b9a33d398aed84

  • SHA256

    bc97a4a68c08d7fecffc06b7925530b91889c840d51874c8781eef3d3f3971ee

  • SHA512

    3f9350a243476eba72e1e3c7cc943947c9413786f21a6119db825a73d63309de94f976bd74f08114dcfeab56e4515487fe210f99518bb0254a42c8a2b0e99606

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xFII:6j+1NMOtEvwDpjr8ox8UDEpN/jV

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20240521a8a4018b79c77a0cb13644dc06adecebcryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\20240521a8a4018b79c77a0cb13644dc06adecebcryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    68KB

    MD5

    325372179bedf69dbf52b405239ab401

    SHA1

    0a47f864a02e423fcce4ee0577484c6eab634394

    SHA256

    4177858f018e03506b73601e3723650d3475751af9cf115cd2b00e85da60b31d

    SHA512

    b5765b455f4249934807514274375f273882478d881f6410357f1e9b6d4f2a84fa3a586e5c722eb615d2b646380cf2adfba8bd40b78b91351376a27ade20079e

  • memory/2648-2-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2648-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2648-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2648-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2648-12-0x0000000001EC0000-0x0000000001ECF000-memory.dmp

    Filesize

    60KB

  • memory/2648-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2828-25-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB