Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    29/08/2024, 03:23

General

  • Target

    SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.3036.13101.exe

  • Size

    698KB

  • MD5

    a9c460a020b9b80a360ed5f0d23f12a1

  • SHA1

    a2686effa4cee1d638d780c4e33d3626f7821fe3

  • SHA256

    7af98634dd9d2f4b3a52ee5651fabf2bd1215d7a79109fc4e0ff9095119944b3

  • SHA512

    e9e1bc642275598851af83c4d8fe1e2e0aec66561517f5507bf69b73085d36c8b25f15e70df796d5e8e5a14f6dbb65db18a8f974003f8163062a098a9f31e658

  • SSDEEP

    12288:LVVnSIwjGnYdHTpvc4OUOpmJzerz1cVX36xjNGSqWp7HP:vVjYdzpvc4OULgz1cVn6xM8pjP

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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • 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 2 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).

  • Program crash 1 IoCs
  • 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.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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.W32.MSIL_Kryptik.KTU.gen.Eldorado.3036.13101.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.3036.13101.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2252
    • 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.W32.MSIL_Kryptik.KTU.gen.Eldorado.3036.13101.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2808
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.3036.13101.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KTU.gen.Eldorado.3036.13101.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1036
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
        3⤵
        • Disables RegEdit via registry modification
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:1276
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1036 -s 1688
        3⤵
        • Program crash
        PID:1708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1036-7-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1036-13-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1036-24-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1036-23-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1036-22-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1036-17-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1036-8-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1036-18-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1036-15-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1036-9-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1036-10-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1036-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2252-5-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2252-1-0x0000000000E50000-0x0000000000F04000-memory.dmp

    Filesize

    720KB

  • memory/2252-6-0x00000000050A0000-0x000000000512C000-memory.dmp

    Filesize

    560KB

  • memory/2252-0-0x00000000741CE000-0x00000000741CF000-memory.dmp

    Filesize

    4KB

  • memory/2252-19-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2252-4-0x00000000741CE000-0x00000000741CF000-memory.dmp

    Filesize

    4KB

  • memory/2252-3-0x0000000000450000-0x0000000000468000-memory.dmp

    Filesize

    96KB

  • memory/2252-2-0x00000000741C0000-0x00000000748AE000-memory.dmp

    Filesize

    6.9MB