Analysis

  • max time kernel
    117s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2024 06:57

General

  • Target

    blhbZrtqbLg6O1K.exe

  • Size

    699KB

  • MD5

    32317fa8ed09561ea6de5ee91c3a971d

  • SHA1

    a1dc40e480493d39a2335963e6d0f1e6bf9fea82

  • SHA256

    117f1bc3d9a04cc8bbc9b0f681745c480f6744ddebd5879e32a05e7c7b3c492f

  • SHA512

    49d43a2adaa04895025cba7810bcb6b980930e20307e5d8684c89b58e23e59639ded7e6a3396c54aa0475dd9f046de617f2cb16d7cf37263a1b643f7adf274c6

  • SSDEEP

    12288:gMyCGMZQ3C68gTcIeW0XS0v9q2nrGFBoK4cqDzcBFz8tcLwUjbc0Y7o:gMyQZF2T0XS0VHGFBoK4cq34Fotcdny

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 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 3 IoCs

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

  • 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\blhbZrtqbLg6O1K.exe
    "C:\Users\Admin\AppData\Local\Temp\blhbZrtqbLg6O1K.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2212
    • 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\blhbZrtqbLg6O1K.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2920
    • C:\Users\Admin\AppData\Local\Temp\blhbZrtqbLg6O1K.exe
      "C:\Users\Admin\AppData\Local\Temp\blhbZrtqbLg6O1K.exe"
      2⤵
        PID:2684
      • C:\Users\Admin\AppData\Local\Temp\blhbZrtqbLg6O1K.exe
        "C:\Users\Admin\AppData\Local\Temp\blhbZrtqbLg6O1K.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:2136

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2136-20-0x0000000074E10000-0x00000000754FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2136-9-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2136-17-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2136-25-0x0000000074E10000-0x00000000754FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2136-15-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2136-7-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2136-11-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2136-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2136-26-0x0000000074E10000-0x00000000754FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2136-22-0x0000000074E10000-0x00000000754FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2136-19-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2136-12-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2212-6-0x0000000005DA0000-0x0000000005E2E000-memory.dmp

      Filesize

      568KB

    • memory/2212-1-0x00000000010D0000-0x0000000001186000-memory.dmp

      Filesize

      728KB

    • memory/2212-5-0x0000000074E10000-0x00000000754FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2212-0-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

      Filesize

      4KB

    • memory/2212-21-0x0000000074E10000-0x00000000754FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2212-4-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

      Filesize

      4KB

    • memory/2212-3-0x0000000000A60000-0x0000000000A72000-memory.dmp

      Filesize

      72KB

    • memory/2212-2-0x0000000074E10000-0x00000000754FE000-memory.dmp

      Filesize

      6.9MB