Overview

overview

10

Static

static

MASTER CON...LS.exe

windows7_x64

10

MASTER CON...LS.exe

windows10_x64

10

Analysis

  • max time kernel
    60s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    08/06/2021, 05:27

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General

  • Target
    MASTER CONTACT DETAILS.exe
  • Size 830KB
  • Sample210608-7vbkp7ghja
  • SHA256 4b78575b143ad3445c37789bbb9fcfc5d1abf7a788eeb09dd6cee6df3c8984af
  • MD5 SHA1 SHA512
Score
10/10
agentteslakeyloggerspywarestealertrojan

Malware Config

Extracted

Family

  • agenttesla

C2

  • https://api.telegram.org/bot1765743101:AAFjAIqoiFu5pUMytacYpCrgIdiSe6mbRkM/sendDocument

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 2 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MASTER CONTACT DETAILS.exe
    "C:\Users\Admin\AppData\Local\Temp\MASTER CONTACT DETAILS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:308
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\goQBzWbJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFAF2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1540
    • C:\Users\Admin\AppData\Local\Temp\MASTER CONTACT DETAILS.exe
      "{path}"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:792
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 400
        3⤵
          PID:368

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/308-60-0x0000000075A31000-0x0000000075A33000-memory.dmp
          Download

          memory/308-61-0x0000000000A90000-0x0000000000A91000-memory.dmp
          Download

          memory/308-62-0x0000000000A91000-0x0000000000A92000-memory.dmp
          Download

          memory/368-71-0x0000000002800000-0x0000000002801000-memory.dmp
          Download

          memory/792-65-0x0000000000400000-0x000000000043C000-memory.dmp
          Download

          memory/792-70-0x00000000003C0000-0x00000000003C1000-memory.dmp
          Download