Analysis

  • max time kernel
    126s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-09-2024 14:45

General

  • Target

    QUOTE4K892388AC422.exe

  • Size

    613KB

  • MD5

    b08c3e1fb6c0cbdc42114b397e5ca857

  • SHA1

    d638ca5e9a20072887e6418186753327853f5369

  • SHA256

    269e25fc0e57a2a1cbb6e3f01936142b4c6e8807d7e33960e5e8baf38ef3b631

  • SHA512

    ec3fa21261715461fe1d510fe1eabf4e232923cc5f6cfe6c343155632a129e514df81f6b366bc755ff04b9b2eafea7e682f9b295bac3d4b28923e0e3de4f85ff

  • SSDEEP

    12288:lzjLf30WH0obqvYCHXzcjWwyuMTtZqe5rfCslgldVMLv:9jj0yGzHw1MOSCKgXV6

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTE4K892388AC422.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTE4K892388AC422.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\QUOTE4K892388AC422.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1516
    • C:\Users\Admin\AppData\Local\Temp\QUOTE4K892388AC422.exe
      "C:\Users\Admin\AppData\Local\Temp\QUOTE4K892388AC422.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4884
  • 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 --field-trial-handle=4408,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=4448 /prefetch:8
    1⤵
      PID:4720

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bcxzrfk2.gie.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1516-51-0x00000000080C0000-0x000000000873A000-memory.dmp

      Filesize

      6.5MB

    • memory/1516-52-0x0000000007A70000-0x0000000007A8A000-memory.dmp

      Filesize

      104KB

    • memory/1516-27-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/1516-32-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/1516-59-0x0000000007D90000-0x0000000007D98000-memory.dmp

      Filesize

      32KB

    • memory/1516-58-0x0000000007DB0000-0x0000000007DCA000-memory.dmp

      Filesize

      104KB

    • memory/1516-57-0x0000000007CB0000-0x0000000007CC4000-memory.dmp

      Filesize

      80KB

    • memory/1516-56-0x0000000007CA0000-0x0000000007CAE000-memory.dmp

      Filesize

      56KB

    • memory/1516-55-0x0000000007C70000-0x0000000007C81000-memory.dmp

      Filesize

      68KB

    • memory/1516-54-0x0000000007CF0000-0x0000000007D86000-memory.dmp

      Filesize

      600KB

    • memory/1516-53-0x0000000007AE0000-0x0000000007AEA000-memory.dmp

      Filesize

      40KB

    • memory/1516-34-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/1516-50-0x0000000007950000-0x00000000079F3000-memory.dmp

      Filesize

      652KB

    • memory/1516-39-0x0000000070870000-0x00000000708BC000-memory.dmp

      Filesize

      304KB

    • memory/1516-16-0x0000000002E10000-0x0000000002E46000-memory.dmp

      Filesize

      216KB

    • memory/1516-26-0x0000000006160000-0x00000000064B4000-memory.dmp

      Filesize

      3.3MB

    • memory/1516-18-0x0000000005AC0000-0x00000000060E8000-memory.dmp

      Filesize

      6.2MB

    • memory/1516-19-0x0000000005880000-0x00000000058A2000-memory.dmp

      Filesize

      136KB

    • memory/1516-20-0x0000000005920000-0x0000000005986000-memory.dmp

      Filesize

      408KB

    • memory/1516-49-0x0000000007930000-0x000000000794E000-memory.dmp

      Filesize

      120KB

    • memory/1516-62-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/1516-38-0x0000000006D00000-0x0000000006D32000-memory.dmp

      Filesize

      200KB

    • memory/1516-35-0x0000000006AC0000-0x0000000006B0C000-memory.dmp

      Filesize

      304KB

    • memory/1516-33-0x0000000006750000-0x000000000676E000-memory.dmp

      Filesize

      120KB

    • memory/2536-4-0x0000000005360000-0x000000000536A000-memory.dmp

      Filesize

      40KB

    • memory/2536-8-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

      Filesize

      4KB

    • memory/2536-3-0x00000000051A0000-0x0000000005232000-memory.dmp

      Filesize

      584KB

    • memory/2536-5-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2536-2-0x0000000005690000-0x0000000005C34000-memory.dmp

      Filesize

      5.6MB

    • memory/2536-1-0x0000000000760000-0x0000000000800000-memory.dmp

      Filesize

      640KB

    • memory/2536-6-0x0000000005410000-0x00000000054AC000-memory.dmp

      Filesize

      624KB

    • memory/2536-14-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2536-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

      Filesize

      4KB

    • memory/2536-7-0x0000000005630000-0x0000000005648000-memory.dmp

      Filesize

      96KB

    • memory/2536-9-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2536-10-0x00000000067A0000-0x0000000006812000-memory.dmp

      Filesize

      456KB

    • memory/4884-11-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/4884-15-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4884-13-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4884-17-0x00000000051D0000-0x0000000005236000-memory.dmp

      Filesize

      408KB

    • memory/4884-37-0x00000000068E0000-0x0000000006AA2000-memory.dmp

      Filesize

      1.8MB

    • memory/4884-36-0x00000000066C0000-0x0000000006710000-memory.dmp

      Filesize

      320KB

    • memory/4884-63-0x0000000074BF0000-0x00000000753A0000-memory.dmp

      Filesize

      7.7MB