Overview

overview

10

Static

static

MASTER CON...LS.exe

windows7_x64

10

MASTER CON...LS.exe

windows10_x64

10

Analysis

  • max time kernel
    56s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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:4008
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\goQBzWbJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF562.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2248
    • C:\Users\Admin\AppData\Local\Temp\MASTER CONTACT DETAILS.exe
      "{path}"
      2⤵
        PID:4092
      • C:\Users\Admin\AppData\Local\Temp\MASTER CONTACT DETAILS.exe
        "{path}"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:736
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 704
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3564

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/736-117-0x0000000000400000-0x000000000043C000-memory.dmp
          Download

          memory/736-122-0x00000000010E0000-0x00000000010E1000-memory.dmp
          Download

          memory/4008-114-0x0000000002750000-0x0000000002751000-memory.dmp
          Download

          memory/4008-121-0x0000000002751000-0x0000000002752000-memory.dmp
          Download