Analysis

  • max time kernel
    127s
  • max time network
    129s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250905-en
  • resource tags

    arch:x64arch:x86image:win11-20250905-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    05/10/2025, 11:53

General

  • Target
    SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.exe
  • Size 782KB
  • Sample251005-n2s4csyn19
  • SHA256 cbbec8fcc0e23e23bcdce82ab97533c7b49f0bcac924cf254a2a8d02b9594ac5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vipkeylogger

Credentials
C2
  • https://api.telegram.org/bot8099843793:AAGeYKMLti1IpyT9o6bz7OtgdXF9md25uXA/sendMessage?chat_id=6337180137

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 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4552
    • 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.Trojan.Siggen31.59338.4906.5768.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4604
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.exe"
      2⤵
        PID:2960
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.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:3500

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SecuriteInfo.com.Trojan.Siggen31.59338.4906.5768.exe.log
          • Size 1KB
          • SHA256 4c17576f64dea465c45a50573ee41771f7be9962ab2d07f961af4df5589bdcce
          • MD5 SHA1 SHA512

          __PSScriptPolicyTest_wbp3esa2.cg1.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wbp3esa2.cg1.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          memory/3500-9-0x0000000000400000-0x0000000000448000-memory.dmp

          memory/3500-54-0x00000000053E0000-0x00000000053F0000-memory.dmp

          memory/3500-55-0x00000000066E0000-0x00000000068A2000-memory.dmp

          memory/3500-56-0x0000000006580000-0x00000000065D0000-memory.dmp

          memory/3500-12-0x00000000053E0000-0x00000000053F0000-memory.dmp

          memory/4552-4-0x0000000005640000-0x000000000564A000-memory.dmp

          memory/4552-8-0x00000000070E0000-0x000000000716E000-memory.dmp

          memory/4552-7-0x0000000005840000-0x0000000005850000-memory.dmp

          memory/4552-6-0x0000000005BF0000-0x0000000005BFC000-memory.dmp

          memory/4552-5-0x00000000058F0000-0x000000000598C000-memory.dmp

          memory/4552-0-0x0000000000AD0000-0x0000000000B9A000-memory.dmp

          memory/4552-3-0x0000000005840000-0x0000000005850000-memory.dmp

          memory/4552-2-0x0000000005670000-0x0000000005702000-memory.dmp

          memory/4552-1-0x0000000005C20000-0x00000000061C6000-memory.dmp

          memory/4604-19-0x0000000005AC0000-0x0000000005B26000-memory.dmp

          memory/4604-43-0x0000000007A60000-0x00000000080DA000-memory.dmp

          memory/4604-17-0x0000000005240000-0x0000000005262000-memory.dmp

          memory/4604-16-0x00000000053B0000-0x00000000059DA000-memory.dmp

          memory/4604-25-0x0000000005C30000-0x0000000005F87000-memory.dmp

          memory/4604-29-0x00000000060D0000-0x00000000060EE000-memory.dmp

          memory/4604-30-0x0000000006160000-0x00000000061AC000-memory.dmp

          memory/4604-31-0x00000000070B0000-0x00000000070E4000-memory.dmp

          memory/4604-32-0x0000000070FB0000-0x0000000070FFC000-memory.dmp

          memory/4604-41-0x0000000006690000-0x00000000066AE000-memory.dmp

          memory/4604-42-0x00000000072F0000-0x0000000007394000-memory.dmp

          memory/4604-18-0x00000000059E0000-0x0000000005A46000-memory.dmp

          memory/4604-44-0x0000000007420000-0x000000000743A000-memory.dmp

          memory/4604-45-0x00000000074A0000-0x00000000074AA000-memory.dmp

          memory/4604-46-0x00000000076B0000-0x0000000007746000-memory.dmp

          memory/4604-47-0x0000000007630000-0x0000000007641000-memory.dmp

          memory/4604-48-0x0000000007660000-0x000000000766E000-memory.dmp

          memory/4604-49-0x0000000007670000-0x0000000007685000-memory.dmp

          memory/4604-50-0x0000000007770000-0x000000000778A000-memory.dmp

          memory/4604-51-0x0000000007760000-0x0000000007768000-memory.dmp

          memory/4604-15-0x00000000029A0000-0x00000000029B0000-memory.dmp

          memory/4604-14-0x00000000029A0000-0x00000000029B0000-memory.dmp

          memory/4604-13-0x00000000028F0000-0x0000000002926000-memory.dmp