Analysis

  • max time kernel
    135s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/05/2024, 05:07

General

  • Target
    IMG_011160528.exe
  • Size 66KB
  • Sample240517-frzjdsaf3y
  • SHA256 cb6670f4f7b6a07c25f521019626dbd56cd7a2d4ffbb754769a3dc0e4fe713ec
  • 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 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
  • 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IMG_011160528.exe
    "C:\Users\Admin\AppData\Local\Temp\IMG_011160528.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1524
    • 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:1780

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1524-0-0x000000007536E000-0x000000007536F000-memory.dmp

        memory/1524-1-0x00000000000F0000-0x0000000000102000-memory.dmp

        memory/1524-2-0x0000000075360000-0x0000000075B10000-memory.dmp

        memory/1524-3-0x0000000006D00000-0x0000000006F32000-memory.dmp

        memory/1524-4-0x00000000074E0000-0x0000000007A84000-memory.dmp

        memory/1524-5-0x0000000006FD0000-0x0000000007062000-memory.dmp

        memory/1524-17-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-27-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-25-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-31-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-47-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-61-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-65-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-63-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-69-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-67-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-59-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-57-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-55-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-53-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-51-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-49-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-43-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-41-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-45-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-39-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-35-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-29-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-37-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-33-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-23-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-21-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-19-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-9-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-7-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-6-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-15-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-13-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-11-0x0000000006D00000-0x0000000006F2B000-memory.dmp

        memory/1524-4886-0x0000000075360000-0x0000000075B10000-memory.dmp

        memory/1524-4888-0x00000000058E0000-0x000000000592C000-memory.dmp

        memory/1524-4887-0x0000000005840000-0x00000000058AC000-memory.dmp

        memory/1524-4889-0x0000000005930000-0x0000000005984000-memory.dmp

        memory/1524-4893-0x0000000075360000-0x0000000075B10000-memory.dmp

        memory/1780-4894-0x0000000075360000-0x0000000075B10000-memory.dmp

        memory/1780-4895-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/1780-4896-0x0000000005140000-0x00000000051A6000-memory.dmp

        memory/1780-4897-0x0000000075360000-0x0000000075B10000-memory.dmp

        memory/1780-4898-0x0000000006440000-0x0000000006490000-memory.dmp

        memory/1780-4899-0x00000000064B0000-0x00000000064BA000-memory.dmp

        memory/1780-4900-0x0000000075360000-0x0000000075B10000-memory.dmp