Analysis

  • max time kernel
    103s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 20:21

General

  • Target
    dbe9a3f4eceb73b67bb6b52e3f094933.exe
  • Size 502KB
  • Sample201109-xwl88fa3ej
  • SHA256 cbc907e55140d6cca7c0c4d71ed17c59b7be727ccfcaefad3f9a9f11527ebdbb
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.platinships.net

  • Port

    587

  • Password

    J~5v.F5[G06H6}ct{!

Signatures

  • AgentTesla

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

  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

  • AgentTesla Payload 2 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • 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
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dbe9a3f4eceb73b67bb6b52e3f094933.exe
    "C:\Users\Admin\AppData\Local\Temp\dbe9a3f4eceb73b67bb6b52e3f094933.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:580
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PJizVvlcez" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE1BB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1928
    • C:\Users\Admin\AppData\Local\Temp\dbe9a3f4eceb73b67bb6b52e3f094933.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1524

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/580-12-0x0000000005970000-0x0000000005971000-memory.dmp

        memory/580-4-0x00000000096B0000-0x00000000096B1000-memory.dmp

        memory/580-7-0x0000000009C50000-0x0000000009C51000-memory.dmp

        memory/580-9-0x0000000005200000-0x0000000005201000-memory.dmp

        memory/580-10-0x0000000005210000-0x0000000005212000-memory.dmp

        memory/580-11-0x0000000005870000-0x00000000058C1000-memory.dmp

        memory/580-0-0x0000000073190000-0x000000007387E000-memory.dmp

        memory/580-1-0x0000000000970000-0x0000000000971000-memory.dmp

        memory/580-3-0x0000000005190000-0x00000000051E5000-memory.dmp

        memory/1524-15-0x0000000000400000-0x0000000000450000-memory.dmp

        memory/1524-18-0x0000000073190000-0x000000007387E000-memory.dmp

        memory/1524-23-0x00000000058F0000-0x00000000058F1000-memory.dmp

        memory/1524-24-0x0000000006480000-0x0000000006481000-memory.dmp