Analysis

  • max time kernel
    127s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 01:01

General

  • Target
    041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe
  • Size 43KB
  • Sample240612-bdmv8axbrf
  • SHA256 041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe
    "C:\Users\Admin\AppData\Local\Temp\041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig /release
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3276
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /release
        3⤵
        • Gathers network information
        PID:5020
    • C:\Users\Admin\AppData\Local\Temp\041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe
      "C:\Users\Admin\AppData\Local\Temp\041a1ee7a56393de29118086e1f2e2432d865e156150a46ad8ef2c64e0becdc6.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2680
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig /renew
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4520
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /renew
        3⤵
        • Gathers network information
        PID:3516
  • 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=4380,i,18320353784098040629,17273168055569331828,262144 --variations-seed-version --mojo-platform-channel-handle=4368 /prefetch:8
    1⤵
      PID:4888

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2108-0-0x000000007451E000-0x000000007451F000-memory.dmp

          memory/2108-1-0x00000000005F0000-0x0000000000602000-memory.dmp

          memory/2108-2-0x0000000074510000-0x0000000074CC0000-memory.dmp

          memory/2108-3-0x000000007451E000-0x000000007451F000-memory.dmp

          memory/2108-4-0x0000000074510000-0x0000000074CC0000-memory.dmp

          memory/2108-5-0x00000000073D0000-0x0000000007600000-memory.dmp

          memory/2108-6-0x0000000007BB0000-0x0000000008154000-memory.dmp

          memory/2108-7-0x00000000076A0000-0x0000000007732000-memory.dmp

          memory/2108-8-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-21-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-49-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-71-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-69-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-67-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-65-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-63-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-61-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-59-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-57-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-55-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-53-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-51-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-47-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-45-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-43-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-41-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-39-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-37-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-35-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-33-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-31-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-29-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-27-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-25-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-19-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-17-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-16-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-13-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-11-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-9-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-23-0x00000000073D0000-0x00000000075FB000-memory.dmp

          memory/2108-4894-0x0000000074510000-0x0000000074CC0000-memory.dmp

          memory/2108-4895-0x0000000005DE0000-0x0000000005E4C000-memory.dmp

          memory/2108-4896-0x0000000005E50000-0x0000000005E9C000-memory.dmp

          memory/2108-4897-0x0000000074510000-0x0000000074CC0000-memory.dmp

          memory/2108-4898-0x0000000005F10000-0x0000000005F64000-memory.dmp

          memory/2108-4905-0x0000000074510000-0x0000000074CC0000-memory.dmp

          memory/2680-4902-0x0000000074510000-0x0000000074CC0000-memory.dmp

          memory/2680-4901-0x0000000000400000-0x0000000000440000-memory.dmp

          memory/2680-4904-0x0000000074510000-0x0000000074CC0000-memory.dmp

          memory/2680-4903-0x0000000005210000-0x0000000005276000-memory.dmp

          memory/2680-4906-0x0000000006140000-0x0000000006190000-memory.dmp

          memory/2680-4907-0x0000000006230000-0x00000000062CC000-memory.dmp

          memory/2680-4908-0x0000000074510000-0x0000000074CC0000-memory.dmp

          memory/2680-4909-0x00000000067A0000-0x00000000067AA000-memory.dmp