Overview

overview

10

Static

static

9

Our compan...df.exe

windows7_x64

10

Our compan...df.exe

windows10-2004_x64

10

Purchase O...df.exe

windows7_x64

10

Purchase O...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:09

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General

  • Target

    Our company presentation~pdf.exe

  • Size

    689KB

  • MD5

    22c37e22bf539c843de4ccc764924f33

  • SHA1

    d557a14aca121b534854bba8b7357bfd91d042c4

  • SHA256

    094f6a9977aca85ca844fdab18035108dda8907b5c7b90416653a573e4e127b7

  • SHA512

    11250880efd045016bf7c7fc74273e7b536ffae455da31d3137734c39cc81f7151dcf3a20ce9a1b8096949e28c88d7c646b25f524ce9d2ad9744ec48342abef1

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mapi.diplemailsrvr.com
  • Port:
    587
  • Username:
    narayana@synpurelabs.com
  • Password:
    Banachi@1974

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Disables RegEdit via registry modification
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • 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
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Our company presentation~pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Our company presentation~pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2616
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sQJHHoOl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4517.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4484
    • C:\Users\Admin\AppData\Local\Temp\Our company presentation~pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:4560
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        3⤵
        • Modifies registry key
        PID:4576
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:3468

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp4517.tmp
      Filesize

      1KB

      MD5

      6bc3544885c29b548776705a6a0f2904

      SHA1

      f4d7d9d90d289b6ee697f13b8ea3faefaaac8faf

      SHA256

      af5a7210be33e81e6ac0132578a46c46e6220812c0813e04cd1c83eadcc3d908

      SHA512

      6108ecaf64ad9e58db2f301b773e367ffe1f552102b258c5660cb72aa568ad5ffe36ee0023e70c694c6e99e86fb0db762d9c8393a6e86906ce74313382fb1041

      Download Submit
    • memory/2616-130-0x0000000074A20000-0x0000000074FD1000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/3468-137-0x0000000000000000-mapping.dmp
      Download
    • memory/4484-131-0x0000000000000000-mapping.dmp
      Download
    • memory/4560-133-0x0000000000000000-mapping.dmp
      Download
    • memory/4560-134-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/4560-135-0x0000000074A20000-0x0000000074FD1000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/4576-136-0x0000000000000000-mapping.dmp
      Download