Analysis

  • max time kernel
    152s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/06/2024, 15:47

General

  • Target
    QUOTATION_PDF.exe
  • Size 738KB
  • Sample240616-s8lebatbkn
  • SHA256 d98f8380522e71c61b91d1fbdf98c0528fc20388a85695529824754f00a183a1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla payload 7 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 4 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION_PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1436
    • C:\Users\Admin\AppData\Local\Temp\QUOTATION_PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\QUOTATION_PDF.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3160
  • 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=4140 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4912

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1436-12-0x0000000000400000-0x00000000004BE000-memory.dmp

          memory/1436-2-0x0000000002410000-0x0000000002420000-memory.dmp

          memory/1436-3-0x0000000002430000-0x0000000002431000-memory.dmp

          memory/1436-0-0x0000000002330000-0x0000000002331000-memory.dmp

          memory/3160-23-0x0000000000400000-0x0000000000485000-memory.dmp

          memory/3160-24-0x0000000000400000-0x0000000000485000-memory.dmp

          memory/3160-6-0x0000000000400000-0x0000000000485000-memory.dmp

          memory/3160-11-0x00000000008A0000-0x00000000008DC000-memory.dmp

          memory/3160-10-0x00000000008A0000-0x00000000008DC000-memory.dmp

          memory/3160-7-0x0000000000400000-0x0000000000485000-memory.dmp

          memory/3160-4-0x0000000000400000-0x0000000000485000-memory.dmp

          memory/3160-8-0x0000000000400000-0x0000000000485000-memory.dmp

          memory/3160-25-0x00000000049B0000-0x0000000004F54000-memory.dmp

          memory/3160-26-0x0000000004F60000-0x0000000004FF2000-memory.dmp

          memory/3160-27-0x0000000000400000-0x0000000000485000-memory.dmp

          memory/3160-28-0x0000000005190000-0x000000000522C000-memory.dmp

          memory/3160-30-0x0000000005890000-0x00000000058A8000-memory.dmp

          memory/3160-31-0x00000000058D0000-0x0000000005936000-memory.dmp

          memory/3160-40-0x00000000061B0000-0x0000000006200000-memory.dmp

          memory/3160-42-0x0000000006280000-0x000000000628A000-memory.dmp