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
    07/04/2024, 23:42

General

  • Target
    998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe
  • Size 87KB
  • Sample240407-3qgnhsaa8t
  • SHA256 998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 18 IoCs
  • UPX dump on OEP (original entry point) 21 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 21 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe
    "C:\Users\Admin\AppData\Local\Temp\998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Users\Admin\AppData\Local\Temp\998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe
      "C:\Users\Admin\AppData\Local\Temp\998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4132
      • C:\Users\Admin\AppData\Local\Temp\998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe
        "C:\Users\Admin\AppData\Local\Temp\998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4912
    • C:\Users\Admin\AppData\Local\Temp\998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe
      "C:\Users\Admin\AppData\Local\Temp\998c67644f4a053595afc95d9b03fb4ac5c98267735fcd99e535e2f67cec61e4.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2176

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        russian fetish fucking voyeur feet ash (Sylvia).mpeg.exe

        • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\russian fetish fucking voyeur feet ash (Sylvia).mpeg.exe
        • Size 1.1MB
        • SHA256 768197d831b671237d248860c184af856ed247d569d465eb7325dff99a8729d0
        • MD5 SHA1 SHA512 SSDEEP

        memory/1628-201-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-185-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-242-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-226-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-180-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-191-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-238-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-230-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-0-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-234-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-214-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-210-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-205-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-218-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1628-222-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/2176-162-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/4132-181-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/4132-87-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/4912-183-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/4912-163-0x0000000000400000-0x0000000000420000-memory.dmp