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Analysis

  • max time kernel
    93s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/03/2024, 13:52

General

  • Target

    b249c3b71582873b624c95ca35749e4c.exe

  • Size

    233KB

  • MD5

    b249c3b71582873b624c95ca35749e4c

  • SHA1

    c43865e9c426ca74337b9ed1ed6cd8aee7f4341b

  • SHA256

    c47f904de040740820b09c3790e111189266a14875ac4422ae1002be5f4eab5d

  • SHA512

    6367bb9a33172f4c6b691763308f094cac118f34047af8e4f08cf011b871048e8a1f28ba73f464b2eb9f2f6d9cf1805b81262e3e6a86c0c105661140013d486e

  • SSDEEP

    3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B8QkgnYHfQlAY:o68i3odBiTl2+TCU/pk8KfQlE8

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe
    "C:\Users\Admin\AppData\Local\Temp\b249c3b71582873b624c95ca35749e4c.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3384
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\bugMAKER.bat
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      PID:1908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\bugMAKER.bat

    Filesize

    76B

    MD5

    7e8909952d5e1817201f31584fc4cc06

    SHA1

    833558bdebdee2b412d9e6941c89c2607fb2b574

    SHA256

    a2e4a0f4067c5d5be575bb078cba5670744a84b06ddf7a6cf48ed5dd5f138a9b

    SHA512

    10997ef6181227f51aaa2fbe25aab84ddeebf0ac113795149834c1b8297c2244fec9b60ef9ed5b4e993100652d1731070592c68e1366796bc810786571cb6e7a

  • memory/3384-24-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB