Analysis

  • max time kernel
    140s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    26/02/2021, 12:26

General

  • Target
    invoice.exe
  • Size 296KB
  • Sample210226-dglz2bc3ya
  • SHA256 f0339a4175d145fc5632f1bd2d8369892f0e7d5897940b55ec49cfffea72785e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://www.guerrilladefense.com/webpanel/inc/02877693980701.php

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Users\Admin\AppData\Local\Temp\invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3084

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1192-3-0x0000000000310000-0x0000000000311000-memory.dmp

        memory/1192-5-0x0000000004FF0000-0x0000000004FF1000-memory.dmp

        memory/1192-6-0x0000000004B90000-0x0000000004B91000-memory.dmp

        memory/1192-7-0x0000000004AF0000-0x0000000004B02000-memory.dmp

        memory/1192-16-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

        memory/1192-2-0x0000000073A80000-0x000000007416E000-memory.dmp

        memory/3084-11-0x0000000073A80000-0x000000007416E000-memory.dmp

        memory/3084-8-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/3084-17-0x0000000005060000-0x0000000005061000-memory.dmp

        memory/3084-18-0x00000000053B0000-0x00000000053B1000-memory.dmp

        memory/3084-19-0x0000000005C70000-0x0000000005C71000-memory.dmp

        memory/3084-20-0x00000000068C0000-0x00000000068C1000-memory.dmp

        memory/3084-21-0x00000000060C0000-0x00000000060C1000-memory.dmp

        memory/3084-22-0x0000000005061000-0x0000000005062000-memory.dmp