Overview

overview

7

Static

static

7

virussign....d0.exe

windows7-x64

7

virussign....d0.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/06/2024, 11:19

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General

  • Target
    virussign.com_99e343f569c3566c37b537ea5259bcd0.exe
  • Size 2.0MB
  • Sample240608-nfct9abb2v
  • SHA256 b76f6f0167cec9c4a97572394a4bf77b9ad7ef3ada519440a84ac61a05a6b2fe
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
persistencespywarestealerupx

Malware Config

Signatures

  • 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 9 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_99e343f569c3566c37b537ea5259bcd0.exe
    "C:\Users\Admin\AppData\Local\Temp\virussign.com_99e343f569c3566c37b537ea5259bcd0.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:4596
    • C:\Users\Admin\AppData\Local\Temp\virussign.com_99e343f569c3566c37b537ea5259bcd0.exe
      "C:\Users\Admin\AppData\Local\Temp\virussign.com_99e343f569c3566c37b537ea5259bcd0.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:980
      • C:\Users\Admin\AppData\Local\Temp\virussign.com_99e343f569c3566c37b537ea5259bcd0.exe
        "C:\Users\Admin\AppData\Local\Temp\virussign.com_99e343f569c3566c37b537ea5259bcd0.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2620
    • C:\Users\Admin\AppData\Local\Temp\virussign.com_99e343f569c3566c37b537ea5259bcd0.exe
      "C:\Users\Admin\AppData\Local\Temp\virussign.com_99e343f569c3566c37b537ea5259bcd0.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:488
  • 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=3928 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3580

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          xxx catfight stockings .zip.exe
          • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\xxx catfight stockings .zip.exe
          • Size 928KB
          • SHA256 48af93fb0657bfa2fd36eca4f0b4357a28ab7f0fa7035656d7b137c14c8724c6
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/488-13-0x0000000000400000-0x000000000041E000-memory.dmp
          Download

          memory/488-182-0x0000000000400000-0x000000000041E000-memory.dmp
          Download

          memory/980-10-0x0000000000400000-0x000000000041E000-memory.dmp
          Download

          memory/980-179-0x0000000000400000-0x000000000041E000-memory.dmp
          Download

          memory/2620-14-0x0000000000400000-0x000000000041E000-memory.dmp
          Download

          memory/2620-186-0x0000000000400000-0x000000000041E000-memory.dmp
          Download

          memory/4596-0-0x0000000000400000-0x000000000041E000-memory.dmp
          Download

          memory/4596-154-0x0000000000400000-0x000000000041E000-memory.dmp
          Download