Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2023 01:08

General

  • Target

    1f4f8dc4c97b864e9da8a09a33c5169a.exe

  • Size

    240KB

  • MD5

    1f4f8dc4c97b864e9da8a09a33c5169a

  • SHA1

    263b8068882663bcdee0833a5e32ea768a393246

  • SHA256

    5b46137113d9c84be43ed744bda2377c5bdeb224a7256f952b11e5df8cfdd6b6

  • SHA512

    ccd2c279a3683b6a36e3fb631609f9ba853454f3abfd81337a0718dd013d65e2658283e3af3a8600737107aeb1bf451ee61106206d7eebef3955b53417fee998

  • SSDEEP

    6144:IUN3dwqsNweTAB0EqxF6snji81RUinKchht/S30:1dQ5JD6k

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f4f8dc4c97b864e9da8a09a33c5169a.exe
    "C:\Users\Admin\AppData\Local\Temp\1f4f8dc4c97b864e9da8a09a33c5169a.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\fuueca.exe
      "C:\Users\Admin\fuueca.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2364

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\fuueca.exe

    Filesize

    240KB

    MD5

    e2f1e364a1c2096b39cb8597a9e67978

    SHA1

    9c42f491c4e2327bd282f9375bdfb5403f3a3bca

    SHA256

    8f90122c7aea5ccad94724bbf325c36ac373770aecc77998e8d64a4882621ef9

    SHA512

    cebf54a64ea3bfdf7707afec61cd86e64b80bda2a6f405c885c5cab1dad509bde6e11b2a6072ac7bde2b3aca3988f5184bcd05ee5f5f15fcf52e7c3d32782ad4