Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-11-2024 11:46

General

  • Target

    SecuriteInfo.com.BackDoor.AgentTeslaNET.37.10515.30521.exe

  • Size

    719KB

  • MD5

    6ba1202e18f970ce89c7b6462db64884

  • SHA1

    0d525a908dff61f4bbd02b4b1d206160bdffe8bc

  • SHA256

    3f1a1db52a4fc4fcdcf257626740eb9662546e6a17592d575e4ad2bac6a3748b

  • SHA512

    22e785170c12ffd8aab80b633e3c8806b000959c31e55243def82eb541783686c14076091f7be14d1485912a6c745b041e40536a265969e3282a2bd5a93ff172

  • SSDEEP

    12288:OMfzuybrVagnUtLYXGAMZKUwPZk1ad6BAKIJwNdbwbIvaHkR:OsVvGLGMkU8ks4AKISkbEP

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.10515.30521.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.10515.30521.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:328
    • 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\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.10515.30521.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2220
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZzEKJhWAzrhtW.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2720
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZzEKJhWAzrhtW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE72.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2800
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.10515.30521.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.37.10515.30521.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE72.tmp

    Filesize

    1KB

    MD5

    34fca0c7e3d8e6a082433ee90258b756

    SHA1

    daa0ef5bad79f0601105cd4b766e0ac74b7af7d1

    SHA256

    d2dc2b49d62efe4833e5dfa7e4526ff919c6d2b9d1979ae1a8ef293631ef0279

    SHA512

    9b75cdd5a5c68c2bf34ff6fa38ffceb1f78e2e4c2803fe6541c0393378b39fcb2594ebacddf4d25b225b1097160281d30cf6518b0b8219b294691982e774a472

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

    Filesize

    7KB

    MD5

    b666090f3c61a027289aa86f4994a012

    SHA1

    82de3feb4af65af5160a25d7c219c0d08705d063

    SHA256

    46994b567d6cf62cd51a8aa0fcc3161b255b5c0f5554784f3aeb5fc31ae1adc5

    SHA512

    5394bc12a09149a1f569ba286e45b330562c5fefb2b1cf88919391f0ccebdb26a16dbe5e55963eff6d0e19a84feece729a23fc77756b883522d39f0525c8619e

  • memory/328-4-0x00000000745EE000-0x00000000745EF000-memory.dmp

    Filesize

    4KB

  • memory/328-32-0x00000000745E0000-0x0000000074CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/328-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

    Filesize

    4KB

  • memory/328-5-0x00000000745E0000-0x0000000074CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/328-6-0x0000000000380000-0x000000000040C000-memory.dmp

    Filesize

    560KB

  • memory/328-2-0x00000000745E0000-0x0000000074CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/328-1-0x0000000000E90000-0x0000000000F46000-memory.dmp

    Filesize

    728KB

  • memory/328-3-0x00000000005F0000-0x000000000060E000-memory.dmp

    Filesize

    120KB

  • memory/2892-19-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2892-31-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2892-29-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2892-28-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2892-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2892-23-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2892-21-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2892-25-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB