Analysis

  • max time kernel
    122s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-01-2025 03:16

General

  • Target

    Company introduction.exe

  • Size

    834KB

  • MD5

    10f72e53a2c9f106093c233b56a3a819

  • SHA1

    e8a63836ff90493559b69a1bc6d6080ba9370a99

  • SHA256

    84e892d4627a3a3aa053b30200788bd6942c046d2dadcf5121017a32e10142f2

  • SHA512

    cd83c1b9c6128b852f36f97a387c4c89b781f0b0b52702540b12c5878129a0352c3edc2c12e2fb13e8f159256272338833715c3d78d98c4a195b8e50bd1ebce2

  • SSDEEP

    24576:XsJN+UVsa/olYFjQyPIoqtpGFjcrpTZ6q6U7jbHXM:83+UfxFsyPIoqcETHFXX

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 1 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 3 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 4 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Company introduction.exe
    "C:\Users\Admin\AppData\Local\Temp\Company introduction.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2296
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FzXKnGk.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2244
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FzXKnGk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB4.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2704
    • C:\Users\Admin\AppData\Local\Temp\Company introduction.exe
      "C:\Users\Admin\AppData\Local\Temp\Company introduction.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:2684

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBB4.tmp

    Filesize

    1KB

    MD5

    25cd6db8a5b6220cd91aa4fcf32569aa

    SHA1

    93bb61d19761ca6c918f0460f83e16cc104b9cba

    SHA256

    ac52e4072df27d5d7814c80e51599331463c85020b347ca083139622c7a2e380

    SHA512

    27452fae6925473cae403028a4707de8996c5bb3c3f70f2201bea6d1a86be8b94eed53461a2b0661cfb1d5703542a631ea812dffd9d28b0d47463fe117ace9ef

  • memory/2296-27-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2296-1-0x0000000001100000-0x00000000011D6000-memory.dmp

    Filesize

    856KB

  • memory/2296-2-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2296-3-0x0000000000E50000-0x0000000000E76000-memory.dmp

    Filesize

    152KB

  • memory/2296-4-0x00000000744DE000-0x00000000744DF000-memory.dmp

    Filesize

    4KB

  • memory/2296-5-0x00000000744D0000-0x0000000074BBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2296-6-0x00000000004F0000-0x000000000057E000-memory.dmp

    Filesize

    568KB

  • memory/2296-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

    Filesize

    4KB

  • memory/2684-14-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2684-26-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2684-23-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2684-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2684-20-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2684-18-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2684-16-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2684-24-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB