Analysis

  • max time kernel
    68s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230705-en
  • resource tags

    arch:x64arch:x86image:win7-20230705-enlocale:en-usos:windows7-x64system
  • submitted
    06/07/2023, 08:32

General

  • Target
    29CB21AF.exe
  • Size 762KB
  • Sample230706-ke97kshf48
  • SHA256 940452c26b4fd683f1c88746b751d4299e9b8c3fe25aa62168eca31924c17592
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\29CB21AF.exe
    "C:\Users\Admin\AppData\Local\Temp\29CB21AF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PemjgzKgZspn.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3036
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PemjgzKgZspn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp28E5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2184
    • C:\Users\Admin\AppData\Local\Temp\29CB21AF.exe
      "C:\Users\Admin\AppData\Local\Temp\29CB21AF.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:952

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        tmp28E5.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp28E5.tmp
        • Size 1KB
        • SHA256 806b3e4b85c5c258c660dc78cd07636d6c7ced7efcc9438344bd37964ea5c2c6
        • MD5 SHA1 SHA512

        memory/768-54-0x0000000001200000-0x00000000012C4000-memory.dmp

        memory/768-55-0x0000000000520000-0x0000000000560000-memory.dmp

        memory/768-56-0x0000000000490000-0x000000000049C000-memory.dmp

        memory/768-57-0x00000000004B0000-0x00000000004BC000-memory.dmp

        memory/768-58-0x0000000005770000-0x00000000057DA000-memory.dmp

        memory/952-69-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/952-65-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/952-64-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/952-68-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/952-71-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/952-66-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/952-67-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/952-73-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/952-76-0x00000000009E0000-0x0000000000A20000-memory.dmp

        memory/952-78-0x00000000009E0000-0x0000000000A20000-memory.dmp

        memory/3036-77-0x00000000026C0000-0x0000000002700000-memory.dmp