Overview

overview

10

Static

static

10

virussign....00.exe

windows7-x64

9

virussign....00.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/03/2024, 11:14

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General

  • Target
    virussign.com_bab49abf4a895213848f13d29cbdb200.exe
  • Size 863KB
  • Sample240303-nbzs8aaa83
  • SHA256 4e968a33df4d654166768c0bb8c7b3e1d8c9ea4c34c3ff3a0ef9011c83c903b5
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
persistencespywarestealerupx

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.

    spywarestealer
  • UPX packed file 20 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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 19 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\virussign.com_bab49abf4a895213848f13d29cbdb200.exe
    "C:\Users\Admin\AppData\Local\Temp\virussign.com_bab49abf4a895213848f13d29cbdb200.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:3192
    • C:\Users\Admin\AppData\Local\Temp\virussign.com_bab49abf4a895213848f13d29cbdb200.exe
      "C:\Users\Admin\AppData\Local\Temp\virussign.com_bab49abf4a895213848f13d29cbdb200.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4560
      • C:\Users\Admin\AppData\Local\Temp\virussign.com_bab49abf4a895213848f13d29cbdb200.exe
        "C:\Users\Admin\AppData\Local\Temp\virussign.com_bab49abf4a895213848f13d29cbdb200.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2056
    • C:\Users\Admin\AppData\Local\Temp\virussign.com_bab49abf4a895213848f13d29cbdb200.exe
      "C:\Users\Admin\AppData\Local\Temp\virussign.com_bab49abf4a895213848f13d29cbdb200.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:5020
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1036 --field-trial-handle=2972,i,4036376905309803364,5412922217215781933,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:776

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          black gang bang bukkake public titts circumcision .avi.exe
          • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\black gang bang bukkake public titts circumcision .avi.exe
          • Size 1.8MB
          • SHA256 ab745412afc1d59183f8f009af31aaf6a58621dfbc54e81d21c743d63f87dfab
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          debug.txt
          • Path C:\debug.txt
          • Size 146B
          • SHA256 ff9703edaba755924a060a00bb72b2e5c3381de6fcf34617f756ae163f18ae31
          • MD5 SHA1 SHA512
          Submit Download

          memory/2056-163-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-219-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-207-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-248-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-160-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-164-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-173-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-183-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-199-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-203-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-234-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-211-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-215-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-0-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-223-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/3192-228-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/4560-161-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/5020-39-0x0000000000400000-0x000000000041F000-memory.dmp
          Download

          memory/5020-162-0x0000000000400000-0x000000000041F000-memory.dmp
          Download