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Analysis

  • max time kernel
    218s
  • max time network
    246s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24/12/2023, 22:37

General

  • Target

    1641e1409f7b6d48073434e6339c6efa.exe

  • Size

    208KB

  • MD5

    1641e1409f7b6d48073434e6339c6efa

  • SHA1

    4ca96ed444c10aee0269f134353f7714626e56f4

  • SHA256

    b133a914b8f620889a023dea94aa2ae8880edd7a33502a99718ccf67b3a6bcec

  • SHA512

    7edd7205419f33f484c6ed9a582ad5d26580837a9b831613b3cb30ec9bc36db07a6b24e3a1a0b9d01765d8854277be5ff00eafd634892655c925512bca373ec0

  • SSDEEP

    6144:tRRy5nnu5W98TFK/fObT/bGiA14DFsqmVrWpMY9Fpp:t/Qu5W98TFK/fObT/bGidIrW39Fpp

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 51 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\1641e1409f7b6d48073434e6339c6efa.exe
    "C:\Users\Admin\AppData\Local\Temp\1641e1409f7b6d48073434e6339c6efa.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:2544
    • C:\Users\Admin\tskis.exe
      "C:\Users\Admin\tskis.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:2024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\tskis.exe

    Filesize

    208KB

    MD5

    6a7c970ad168201153a3997ecc554831

    SHA1

    97a3ffbdc3285a97ad3daf5c8760e414c6bac9ba

    SHA256

    fa1a82be21d58b5fec2ca11d4a800ee10dcd412291f146dcfdf93ceea2229708

    SHA512

    4c4cecce4e0109278f9f1f4f029b508a6c9c94cd48ac45927d1a5ebd177e2c20857c5cca4c8fffd73dbf43e249de50ca9f749db679cc283d4a97fc7131bf273e