Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/05/2024, 01:05

General

  • Target

    ebcde6651afc8265c21f3d7cd1d27374da8f636c2f7edef8ab20acf8e01536da.exe

  • Size

    798KB

  • MD5

    b19a4141388cb616e084129323461419

  • SHA1

    982a5fc09b1a88edb4eac79d1c8c49796fc44f90

  • SHA256

    ebcde6651afc8265c21f3d7cd1d27374da8f636c2f7edef8ab20acf8e01536da

  • SHA512

    231c0c99223c8320b03ce0114b16d3b43e7b0d17e77cf000df27cb15c802514d587bd73209a9c38f77d2b1de2b69f6dc5f04c9c386d1afc08ffdccbf73b15738

  • SSDEEP

    24576:qMnt6gGlQR2BjgJWbB3bCJbkjHEXD3HaVorb:qU5GlQ4j9N3+dkjUHaVe

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • UAC bypass 3 TTPs 1 IoCs
  • 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.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebcde6651afc8265c21f3d7cd1d27374da8f636c2f7edef8ab20acf8e01536da.exe
    "C:\Users\Admin\AppData\Local\Temp\ebcde6651afc8265c21f3d7cd1d27374da8f636c2f7edef8ab20acf8e01536da.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2044
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ebcde6651afc8265c21f3d7cd1d27374da8f636c2f7edef8ab20acf8e01536da.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2684
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2672
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2044 -s 736
      2⤵
        PID:2752

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2044-24-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp

      Filesize

      9.9MB

    • memory/2044-23-0x000007FEF5C23000-0x000007FEF5C24000-memory.dmp

      Filesize

      4KB

    • memory/2044-2-0x000000001A8D0000-0x000000001A964000-memory.dmp

      Filesize

      592KB

    • memory/2044-3-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp

      Filesize

      9.9MB

    • memory/2044-0-0x000007FEF5C23000-0x000007FEF5C24000-memory.dmp

      Filesize

      4KB

    • memory/2044-1-0x0000000000960000-0x000000000099A000-memory.dmp

      Filesize

      232KB

    • memory/2672-15-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2672-11-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2672-9-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2672-20-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2672-18-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2672-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2672-21-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2672-13-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2684-8-0x0000000002B90000-0x0000000002C10000-memory.dmp

      Filesize

      512KB

    • memory/2684-22-0x0000000002340000-0x0000000002348000-memory.dmp

      Filesize

      32KB

    • memory/2684-19-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

      Filesize

      2.9MB