Analysis

  • max time kernel
    134s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    26/10/2020, 06:49

General

  • Target
    DHL EXPRESS DELIVERY INVOICE.exe
  • Size 451KB
  • Sample201026-ncpgp7298a
  • SHA256 ecd685994c047195bf8a03b9e4a4ea800b970285806a417a9160153da37f76cb
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.xiintong-group.com

  • Port

    587

  • Password

    Kane2021986

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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL EXPRESS DELIVERY INVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL EXPRESS DELIVERY INVOICE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3980
    • C:\Users\Admin\AppData\Local\Temp\DHL EXPRESS DELIVERY INVOICE.exe
      "{path}"
      2⤵
        PID:2224
      • C:\Users\Admin\AppData\Local\Temp\DHL EXPRESS DELIVERY INVOICE.exe
        "{path}"
        2⤵
          PID:2372
        • C:\Users\Admin\AppData\Local\Temp\DHL EXPRESS DELIVERY INVOICE.exe
          "{path}"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2436

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            memory/2436-9-0x0000000000400000-0x000000000043C000-memory.dmp

            memory/2436-18-0x0000000006440000-0x0000000006441000-memory.dmp

            memory/2436-17-0x0000000005930000-0x0000000005931000-memory.dmp

            memory/2436-12-0x0000000073880000-0x0000000073F6E000-memory.dmp

            memory/3980-4-0x0000000005020000-0x0000000005021000-memory.dmp

            memory/3980-8-0x0000000008760000-0x00000000087C0000-memory.dmp

            memory/3980-7-0x00000000084F0000-0x0000000008506000-memory.dmp

            memory/3980-6-0x00000000085C0000-0x00000000085C1000-memory.dmp

            memory/3980-5-0x0000000004F80000-0x0000000004F81000-memory.dmp

            memory/3980-0-0x0000000073880000-0x0000000073F6E000-memory.dmp

            memory/3980-3-0x00000000055D0000-0x00000000055D1000-memory.dmp

            memory/3980-1-0x00000000006C0000-0x00000000006C1000-memory.dmp