Analysis

  • max time kernel
    58s
  • max time network
    115s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    14/06/2023, 06:32

General

  • Target
    SecuriteInfo.com.Win32.PWSX-gen.9590.31775.exe
  • Size 784KB
  • Sample230614-hal8vade43
  • SHA256 257ba93dab8da864d90c650cfd8b28bd5df50817f574febd5ae102648c5abf1c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot6254200827:AAE72ehike93Yl10K-g-eoD9WA3Xk9taVes/

Signatures

  • AgentTesla

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

  • 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
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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\SecuriteInfo.com.Win32.PWSX-gen.9590.31775.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.9590.31775.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1140
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KGqiFrVe.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:580
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KGqiFrVe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA92C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:668
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.9590.31775.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.9590.31775.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1692

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpA92C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpA92C.tmp
        • Size 1KB
        • SHA256 21a31c92d30bf71d170e8a0c1a6e28c134c44a323c1b4f9faabf3f49a3f22acf
        • MD5 SHA1 SHA512

        memory/1140-54-0x0000000000F30000-0x0000000000FF6000-memory.dmp

        memory/1140-55-0x0000000004E70000-0x0000000004EB0000-memory.dmp

        memory/1140-56-0x0000000000470000-0x000000000047C000-memory.dmp

        memory/1140-57-0x0000000004E70000-0x0000000004EB0000-memory.dmp

        memory/1140-58-0x0000000000490000-0x000000000049C000-memory.dmp

        memory/1140-59-0x0000000005070000-0x00000000050DA000-memory.dmp

        memory/1140-67-0x00000000049B0000-0x00000000049E2000-memory.dmp

        memory/1692-68-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1692-69-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1692-70-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1692-71-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1692-73-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1692-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/1692-75-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1692-77-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1692-78-0x0000000005020000-0x0000000005060000-memory.dmp

        memory/1692-96-0x0000000005020000-0x0000000005060000-memory.dmp