Analysis

  • max time kernel
    149s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    05/12/2020, 15:27

General

  • Target
    INVOICE_(F46-13 ).exe
  • Size 1.1MB
  • Sample201205-jlwlgmsdwe
  • SHA256 1d35fbe1961f63fcc426c5a332d5dfc93dd051ecdfd17ea47790f80f22171ce1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.transgear.in

  • Port

    587

  • Password

    purchase@2020*

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE_(F46-13 ).exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE_(F46-13 ).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vHAbZda" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D1E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1880
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3244

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/3244-25-0x0000000006030000-0x0000000006031000-memory.dmp

        memory/3244-24-0x0000000005410000-0x0000000005411000-memory.dmp

        memory/3244-19-0x0000000073E30000-0x000000007451E000-memory.dmp

        memory/3244-17-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/4648-7-0x0000000005880000-0x0000000005881000-memory.dmp

        memory/4648-11-0x0000000046EC0000-0x0000000046F17000-memory.dmp

        memory/4648-12-0x00000000057D0000-0x00000000057D8000-memory.dmp

        memory/4648-14-0x0000000047110000-0x000000004714A000-memory.dmp

        memory/4648-10-0x0000000026C60000-0x0000000046C48000-memory.dmp

        memory/4648-9-0x00000000059E0000-0x00000000059E1000-memory.dmp

        memory/4648-8-0x00000000056E0000-0x00000000056E1000-memory.dmp

        memory/4648-2-0x0000000073E30000-0x000000007451E000-memory.dmp

        memory/4648-6-0x0000000005D80000-0x0000000005D81000-memory.dmp

        memory/4648-5-0x00000000057E0000-0x00000000057E1000-memory.dmp

        memory/4648-3-0x0000000000DA0000-0x0000000000DA1000-memory.dmp