Overview

overview

10

Static

static

c635h0xsMSHcfHh.exe

windows7_x64

10

c635h0xsMSHcfHh.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    131s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:13

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General

  • Target

    c635h0xsMSHcfHh.exe

  • Size

    484KB

  • MD5

    52115771fbb6cf6c19efa25341659cc9

  • SHA1

    c8467e8567e39b6ba7b854ba616fb2d6b1ae6dcf

  • SHA256

    56d3195601565b122137b9d48f27db87d1cc83da7f5aca7720d128cf2044cefc

  • SHA512

    fa38ef613adc5a4344ba469daeef3336629465def1eb24dc71cf3d45d90181d096c49c2581ecf1dc5e002b06658e8bfab4f4c1c57d1b9fda1971fc22c607ec00

Score
10/10
agentteslacollectionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kelechi12

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kelechi12

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\c635h0xsMSHcfHh.exe
    "C:\Users\Admin\AppData\Local\Temp\c635h0xsMSHcfHh.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:396
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QFAEPa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp79D3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1908
    • C:\Users\Admin\AppData\Local\Temp\c635h0xsMSHcfHh.exe
      "{path}"
      2⤵
        PID:4248
      • C:\Users\Admin\AppData\Local\Temp\c635h0xsMSHcfHh.exe
        "{path}"
        2⤵
          PID:408
        • C:\Users\Admin\AppData\Local\Temp\c635h0xsMSHcfHh.exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:4672

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Scheduled Task

      1
      T1053

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      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\tmp79D3.tmp
        Filesize

        1KB

        MD5

        70e2ac1d5160159fc9e4f84210f81b3b

        SHA1

        21646e6aca8357fa9033a5c71671918ad640e66c

        SHA256

        316a5c77edf7f5f8cbd17992d55c89ddec01ef76d1ee0e5e55e06aca263ebb9e

        SHA512

        448b6aa8a736a3dd02d6b8b3bfc828197510724ccdd7bb96b4142348f9c2ce36d1b7b1a0d9dc3e378c08f633776c8ed2c8279589f0b22bf7f848420495ba0484

        Download Submit
      • memory/396-133-0x0000000007C80000-0x0000000007C8A000-memory.dmp
        Filesize

        40KB

        Download
      • memory/396-132-0x0000000007CB0000-0x0000000007D42000-memory.dmp
        Filesize

        584KB

        Download
      • memory/396-130-0x0000000000D80000-0x0000000000E00000-memory.dmp
        Filesize

        512KB

        Download
      • memory/396-134-0x0000000007F60000-0x0000000007FFC000-memory.dmp
        Filesize

        624KB

        Download
      • memory/396-131-0x00000000081C0000-0x0000000008764000-memory.dmp
        Filesize

        5.6MB

        Download
      • memory/408-138-0x0000000000000000-mapping.dmp
        Download
      • memory/1908-135-0x0000000000000000-mapping.dmp
        Download
      • memory/4248-137-0x0000000000000000-mapping.dmp
        Download
      • memory/4672-139-0x0000000000000000-mapping.dmp
        Download
      • memory/4672-140-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

        Download
      • memory/4672-141-0x0000000005DC0000-0x0000000005E26000-memory.dmp
        Filesize

        408KB

        Download
      • memory/4672-142-0x00000000061C0000-0x0000000006210000-memory.dmp
        Filesize

        320KB

        Download