Analysis

  • max time kernel
    119s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    10/11/2020, 11:49

General

  • Target
    c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1.exe
  • Size 346KB
  • Sample201110-6pgsrefbhx
  • SHA256 c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.rajalakshmi.co.in

  • Port

    587

  • Password

    009_DESign1*

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 58 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1.exe
    "C:\Users\Admin\AppData\Local\Temp\c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:884
    • C:\Users\Admin\AppData\Local\Temp\c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1.exe
      "C:\Users\Admin\AppData\Local\Temp\c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2536
    • C:\Users\Admin\AppData\Local\Temp\c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1.exe
      "C:\Users\Admin\AppData\Local\Temp\c076fb8aa8701a1255fad0401bc4d812fad82a0835fd2f95b9d7ade3fe9abec1.exe" 2 2536 259299734
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2896

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/884-0-0x0000000000400000-0x00000000004C1000-memory.dmp

        memory/2536-14-0x00000000053A0000-0x00000000053A1000-memory.dmp

        memory/2536-13-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

        memory/2536-4-0x0000000000400000-0x0000000000485000-memory.dmp

        memory/2536-17-0x0000000005ED0000-0x0000000005ED1000-memory.dmp

        memory/2536-5-0x0000000000400000-0x0000000000485000-memory.dmp

        memory/2536-6-0x0000000002120000-0x000000000215C000-memory.dmp

        memory/2536-9-0x00000000731F0000-0x00000000738DE000-memory.dmp

        memory/2536-16-0x0000000005650000-0x0000000005651000-memory.dmp

        memory/2536-12-0x00000000047C0000-0x00000000047C1000-memory.dmp

        memory/2536-8-0x0000000002272000-0x0000000002273000-memory.dmp

        memory/2536-1-0x0000000000400000-0x0000000000485000-memory.dmp

        memory/2536-15-0x00000000053C0000-0x00000000053C1000-memory.dmp

        memory/2896-7-0x0000000000400000-0x00000000004C1000-memory.dmp