Analysis

  • max time kernel
    142s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15-11-2024 02:14

General

  • Target

    6f30e8539abe8bd2d0cd8feea166845c1cb17036a2133fe8d3213c7c5f6e1021.exe

  • Size

    887KB

  • MD5

    4662014d81ff911437b031dec304db3e

  • SHA1

    12c52986806b796a1b9aa75c646ce9491a4becf3

  • SHA256

    6f30e8539abe8bd2d0cd8feea166845c1cb17036a2133fe8d3213c7c5f6e1021

  • SHA512

    7ae1acfe72a9762e111068db67ee57ab085ea7dcfa80bada2a0bea7c2af527e6b77edee2a00e441d8d47c70664feef45cc24058e8823b6632f1cd36c0a2c2e94

  • SSDEEP

    12288:+7zhNdyvUIZbV/O1bJGOD0CInmWC4H9bz97tk5J6f0uZzn9zF:+7MvDB/l00CInCwvBO6NZz9z

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vistakencana.com.my
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    m33R3bus!

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 5 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 3 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f30e8539abe8bd2d0cd8feea166845c1cb17036a2133fe8d3213c7c5f6e1021.exe
    "C:\Users\Admin\AppData\Local\Temp\6f30e8539abe8bd2d0cd8feea166845c1cb17036a2133fe8d3213c7c5f6e1021.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1924
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\6f30e8539abe8bd2d0cd8feea166845c1cb17036a2133fe8d3213c7c5f6e1021.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2480
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sELElpWT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2692
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sELElpWT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8778.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2908
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sELElpWT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2004
    • C:\Users\Admin\AppData\Local\Temp\6f30e8539abe8bd2d0cd8feea166845c1cb17036a2133fe8d3213c7c5f6e1021.exe
      "C:\Users\Admin\AppData\Local\Temp\6f30e8539abe8bd2d0cd8feea166845c1cb17036a2133fe8d3213c7c5f6e1021.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8778.tmp

    Filesize

    1KB

    MD5

    b16ef80f1f54928f638ee232b5818b71

    SHA1

    6adffb413550a07de6110c8ff933d74ef2ea9e79

    SHA256

    20a317640ac8c260667d89a09c5e9617eeda9e0235e78317be605de96965c010

    SHA512

    6ffc7e5794b865a1d75de1d009f4929a404ec1f8e527a165475ba155c60da4bc64963d1fc34f887636a2c107dba0cf868589573abc1b73bb09062b011bfef12b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    fce28676c1cce44850e45eb1673ea74b

    SHA1

    f6d1258a1cea6387a04f6e5aa2cc6b42c1acf6f6

    SHA256

    c86861f81c41f46814c4190c398a7075098dca391e817298da2b597948f4a0f2

    SHA512

    1cdc15595a2681564c1496991b92764e0e5e6acb87c6e72539f4caf3025b46680f39f7986892d47c38ce37bb42cc9ea08cecee38bb526d3196283ce5cb6575e1

  • memory/1924-4-0x000000007470E000-0x000000007470F000-memory.dmp

    Filesize

    4KB

  • memory/1924-3-0x00000000008B0000-0x00000000008D2000-memory.dmp

    Filesize

    136KB

  • memory/1924-0-0x000000007470E000-0x000000007470F000-memory.dmp

    Filesize

    4KB

  • memory/1924-5-0x0000000074700000-0x0000000074DEE000-memory.dmp

    Filesize

    6.9MB

  • memory/1924-6-0x00000000055F0000-0x000000000566A000-memory.dmp

    Filesize

    488KB

  • memory/1924-7-0x00000000047B0000-0x00000000047EE000-memory.dmp

    Filesize

    248KB

  • memory/1924-2-0x0000000074700000-0x0000000074DEE000-memory.dmp

    Filesize

    6.9MB

  • memory/1924-1-0x00000000012C0000-0x00000000013A2000-memory.dmp

    Filesize

    904KB

  • memory/1924-33-0x0000000074700000-0x0000000074DEE000-memory.dmp

    Filesize

    6.9MB

  • memory/3000-30-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3000-29-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3000-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3000-24-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3000-22-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3000-20-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3000-26-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3000-32-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB