Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/10/2024, 11:46

General

  • Target
    QUOTE-4K240727-A-CCC.exe
  • Size 536KB
  • Sample241015-nxaffsscrd
  • SHA256 836e1a1a93d29eeef8a26fd8001cb5efe017c899bea5c4d404db74cc7e6ea563
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 3 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTE-4K240727-A-CCC.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTE-4K240727-A-CCC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2900
    • 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\QUOTE-4K240727-A-CCC.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2632
    • C:\Users\Admin\AppData\Local\Temp\QUOTE-4K240727-A-CCC.exe
      "C:\Users\Admin\AppData\Local\Temp\QUOTE-4K240727-A-CCC.exe"
      2⤵
        PID:3008
      • C:\Users\Admin\AppData\Local\Temp\QUOTE-4K240727-A-CCC.exe
        "C:\Users\Admin\AppData\Local\Temp\QUOTE-4K240727-A-CCC.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4100

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          __PSScriptPolicyTest_e4btanu4.2yr.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_e4btanu4.2yr.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          memory/2632-51-0x0000000007AF0000-0x000000000816A000-memory.dmp

          memory/2632-35-0x0000000006210000-0x000000000625C000-memory.dmp

          memory/2632-54-0x0000000007720000-0x00000000077B6000-memory.dmp

          memory/2632-53-0x0000000007510000-0x000000000751A000-memory.dmp

          memory/2632-52-0x00000000074A0000-0x00000000074BA000-memory.dmp

          memory/2632-56-0x00000000076D0000-0x00000000076DE000-memory.dmp

          memory/2632-57-0x00000000076E0000-0x00000000076F4000-memory.dmp

          memory/2632-48-0x0000000007370000-0x0000000007413000-memory.dmp

          memory/2632-36-0x0000000007130000-0x0000000007162000-memory.dmp

          memory/2632-37-0x0000000070CD0000-0x0000000070D1C000-memory.dmp

          memory/2632-62-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/2632-47-0x0000000007110000-0x000000000712E000-memory.dmp

          memory/2632-14-0x0000000002860000-0x0000000002896000-memory.dmp

          memory/2632-59-0x00000000077C0000-0x00000000077C8000-memory.dmp

          memory/2632-55-0x00000000076A0000-0x00000000076B1000-memory.dmp

          memory/2632-17-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/2632-18-0x0000000005310000-0x0000000005938000-memory.dmp

          memory/2632-27-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/2632-21-0x0000000005140000-0x00000000051A6000-memory.dmp

          memory/2632-58-0x00000000077E0000-0x00000000077FA000-memory.dmp

          memory/2632-34-0x0000000006180000-0x000000000619E000-memory.dmp

          memory/2632-33-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/2632-20-0x00000000050A0000-0x00000000050C2000-memory.dmp

          memory/2632-32-0x0000000005B40000-0x0000000005E94000-memory.dmp

          memory/2900-2-0x00000000054E0000-0x0000000005A84000-memory.dmp

          memory/2900-15-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/2900-1-0x00000000003F0000-0x000000000047C000-memory.dmp

          memory/2900-10-0x00000000064F0000-0x0000000006562000-memory.dmp

          memory/2900-9-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/2900-8-0x0000000074FBE000-0x0000000074FBF000-memory.dmp

          memory/2900-7-0x0000000005090000-0x00000000050A2000-memory.dmp

          memory/2900-6-0x0000000005150000-0x00000000051EC000-memory.dmp

          memory/2900-0-0x0000000074FBE000-0x0000000074FBF000-memory.dmp

          memory/2900-4-0x0000000004E30000-0x0000000004E3A000-memory.dmp

          memory/2900-5-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/2900-3-0x0000000004E60000-0x0000000004EF2000-memory.dmp

          memory/4100-13-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/4100-50-0x00000000067E0000-0x00000000069A2000-memory.dmp

          memory/4100-49-0x00000000065C0000-0x0000000006610000-memory.dmp

          memory/4100-19-0x0000000074FB0000-0x0000000075760000-memory.dmp

          memory/4100-16-0x00000000050C0000-0x0000000005126000-memory.dmp

          memory/4100-11-0x0000000000400000-0x0000000000430000-memory.dmp

          memory/4100-63-0x0000000074FB0000-0x0000000075760000-memory.dmp