Analysis

  • max time kernel
    65s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    10/08/2020, 18:30

General

  • Target
    SecuriteInfo.com.BackDoor.SiggenNET.5.3809.31399.exe
  • Size 360KB
  • Sample200810-lhm5bmvd2s
  • SHA256 19a8e4f9fb01ff4333c81f78bba61e42d516c860e8974e059be82f2bf9d5a641
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.qatarpharmas.org

  • Port

    587

  • Password

    @dX2#^%HWdg?fZ;g5n

Signatures

  • AgentTesla

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • AgentTesla Payload 5 IoCs
  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SiggenNET.5.3809.31399.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SiggenNET.5.3809.31399.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3888
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SiggenNET.5.3809.31399.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.SiggenNET.5.3809.31399.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3860

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3860-9-0x0000000000400000-0x0000000000458000-memory.dmp

        memory/3860-17-0x0000000005E10000-0x0000000005E11000-memory.dmp

        memory/3860-16-0x0000000005140000-0x0000000005141000-memory.dmp

        memory/3860-15-0x00000000052E0000-0x00000000052E1000-memory.dmp

        memory/3860-11-0x0000000073420000-0x0000000073B0E000-memory.dmp

        memory/3888-4-0x0000000005330000-0x0000000005331000-memory.dmp

        memory/3888-8-0x0000000007890000-0x00000000078E2000-memory.dmp

        memory/3888-6-0x00000000076E0000-0x0000000007727000-memory.dmp

        memory/3888-5-0x00000000052E0000-0x00000000052E1000-memory.dmp

        memory/3888-0-0x0000000073420000-0x0000000073B0E000-memory.dmp

        memory/3888-3-0x0000000005790000-0x0000000005791000-memory.dmp

        memory/3888-1-0x0000000000A50000-0x0000000000A51000-memory.dmp