Analysis

  • max time kernel
    120s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-12-2024 10:50

General

  • Target

    obigfdsdf.exe

  • Size

    783KB

  • MD5

    4f80565082ea4d95d933decf9cd50c61

  • SHA1

    2830f9d5f41bbecd2ae105ed0b9a8d49327c8594

  • SHA256

    d854f347061d9d7b8a9788ab8633c3f07619e29bd440924507a0147484c217c3

  • SHA512

    9dcdae5c7a5b4181ade738884e208508bf317742ca2be0726716aa71236670a50dae2bec947b3fcc12cfc85c756810f18a9f403de4eb428b4a73a4759037f227

  • SSDEEP

    24576:cmCJVCABws3ok2B3KE0cZICs/dZvo7sK:cJ0ABsB1P0wICsVIs

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\obigfdsdf.exe
    "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2104
    • 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\obigfdsdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2724
    • C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe
      "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"
      2⤵
        PID:2736
      • C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe
        "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.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:2880

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2104-0-0x00000000743BE000-0x00000000743BF000-memory.dmp

      Filesize

      4KB

    • memory/2104-1-0x0000000000100000-0x00000000001CA000-memory.dmp

      Filesize

      808KB

    • memory/2104-2-0x00000000743B0000-0x0000000074A9E000-memory.dmp

      Filesize

      6.9MB

    • memory/2104-3-0x0000000000530000-0x0000000000542000-memory.dmp

      Filesize

      72KB

    • memory/2104-4-0x00000000743BE000-0x00000000743BF000-memory.dmp

      Filesize

      4KB

    • memory/2104-5-0x00000000743B0000-0x0000000074A9E000-memory.dmp

      Filesize

      6.9MB

    • memory/2104-6-0x0000000005DD0000-0x0000000005E5E000-memory.dmp

      Filesize

      568KB

    • memory/2104-25-0x00000000743B0000-0x0000000074A9E000-memory.dmp

      Filesize

      6.9MB

    • memory/2880-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2880-15-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2880-11-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2880-20-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2880-21-0x00000000743B0000-0x0000000074A9E000-memory.dmp

      Filesize

      6.9MB

    • memory/2880-22-0x00000000743B0000-0x0000000074A9E000-memory.dmp

      Filesize

      6.9MB

    • memory/2880-8-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2880-9-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2880-7-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2880-17-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/2880-26-0x00000000743B0000-0x0000000074A9E000-memory.dmp

      Filesize

      6.9MB