Analysis

  • max time kernel
    65s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    22/02/2023, 11:11

General

  • Target
    8f87fe0b5603293f372feac809d815c0.exe
  • Size 840KB
  • Sample230222-m99kmsch2v
  • SHA256 53eb83560df949284e8d00992e7a5acf16c77ea64ee89c0bc4b16d394640456b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot5350270151:AAHiqzi7CQnEGEk3Xi-PyJX8ov0x6B-8S1I/

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
  • 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
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f87fe0b5603293f372feac809d815c0.exe
    "C:\Users\Admin\AppData\Local\Temp\8f87fe0b5603293f372feac809d815c0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Users\Admin\AppData\Local\Temp\8f87fe0b5603293f372feac809d815c0.exe
      "C:\Users\Admin\AppData\Local\Temp\8f87fe0b5603293f372feac809d815c0.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:268

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        CabE39E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\CabE39E.tmp
        • Size 61KB
        • SHA256 10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b
        • MD5 SHA1 SHA512 SSDEEP

        memory/268-66-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/268-70-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/268-88-0x0000000004D70000-0x0000000004DB0000-memory.dmp

        memory/268-71-0x0000000004D70000-0x0000000004DB0000-memory.dmp

        memory/268-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/268-68-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/268-61-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/268-62-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/268-63-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/268-64-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1712-56-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/1712-54-0x00000000011E0000-0x00000000012B8000-memory.dmp

        memory/1712-60-0x0000000000870000-0x00000000008A2000-memory.dmp

        memory/1712-59-0x0000000005670000-0x0000000005728000-memory.dmp

        memory/1712-58-0x0000000000430000-0x000000000043C000-memory.dmp

        memory/1712-55-0x0000000000800000-0x0000000000840000-memory.dmp

        memory/1712-57-0x0000000000800000-0x0000000000840000-memory.dmp