Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/06/2024, 01:01

General

  • Target
    a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.exe
  • Size 850KB
  • Sample240604-bdkqvsff31
  • SHA256 a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 18 IoCs
  • UPX dump on OEP (original entry point) 20 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 20 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\a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.exe
    "C:\Users\Admin\AppData\Local\Temp\a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.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:3824
    • C:\Users\Admin\AppData\Local\Temp\a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.exe
      "C:\Users\Admin\AppData\Local\Temp\a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2144
      • C:\Users\Admin\AppData\Local\Temp\a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.exe
        "C:\Users\Admin\AppData\Local\Temp\a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3884
    • C:\Users\Admin\AppData\Local\Temp\a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.exe
      "C:\Users\Admin\AppData\Local\Temp\a2ad542f8f86117e5fc8e344d2a6644eb22cb3973e7f8145a217e76f8c197683.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:804

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        black fetish lingerie big beautyfull .rar.exe

        • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\black fetish lingerie big beautyfull .rar.exe
        • Size 1.8MB
        • SHA256 20a5fe08f792eed176f0ac4cae366fc4e308aa8ac58d2b868215dafa55613612
        • MD5 SHA1 SHA512 SSDEEP

        memory/804-181-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/2144-29-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-226-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-214-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-242-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-238-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-184-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-185-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-191-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-205-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-210-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-179-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-218-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-222-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-0-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-230-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3824-234-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3884-152-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/3884-182-0x0000000000400000-0x000000000041E000-memory.dmp