Analysis

  • max time kernel
    135s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/08/2024, 01:34

General

  • Target

    7af98634dd9d2f4b3a52ee5651fabf2bd1215d7a79109fc4e0ff9095119944b3.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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 5 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\7af98634dd9d2f4b3a52ee5651fabf2bd1215d7a79109fc4e0ff9095119944b3.exe
    "C:\Users\Admin\AppData\Local\Temp\7af98634dd9d2f4b3a52ee5651fabf2bd1215d7a79109fc4e0ff9095119944b3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3052
    • 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\7af98634dd9d2f4b3a52ee5651fabf2bd1215d7a79109fc4e0ff9095119944b3.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1408
    • C:\Users\Admin\AppData\Local\Temp\7af98634dd9d2f4b3a52ee5651fabf2bd1215d7a79109fc4e0ff9095119944b3.exe
      "C:\Users\Admin\AppData\Local\Temp\7af98634dd9d2f4b3a52ee5651fabf2bd1215d7a79109fc4e0ff9095119944b3.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:1744
      • 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:2748
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1744 -s 1116
        3⤵
        • Program crash
        PID:1936
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1744 -ip 1744
    1⤵
      PID:1176

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nk3o3wrf.v1y.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1408-51-0x0000000006FA0000-0x0000000007036000-memory.dmp

      Filesize

      600KB

    • memory/1408-50-0x0000000006D90000-0x0000000006D9A000-memory.dmp

      Filesize

      40KB

    • memory/1408-59-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/1408-56-0x0000000007040000-0x0000000007048000-memory.dmp

      Filesize

      32KB

    • memory/1408-55-0x0000000007060000-0x000000000707A000-memory.dmp

      Filesize

      104KB

    • memory/1408-54-0x0000000006F60000-0x0000000006F74000-memory.dmp

      Filesize

      80KB

    • memory/1408-53-0x0000000006F50000-0x0000000006F5E000-memory.dmp

      Filesize

      56KB

    • memory/1408-52-0x0000000006F20000-0x0000000006F31000-memory.dmp

      Filesize

      68KB

    • memory/1408-27-0x00000000053B0000-0x0000000005416000-memory.dmp

      Filesize

      408KB

    • memory/1408-49-0x0000000006D20000-0x0000000006D3A000-memory.dmp

      Filesize

      104KB

    • memory/1408-48-0x0000000007370000-0x00000000079EA000-memory.dmp

      Filesize

      6.5MB

    • memory/1408-47-0x0000000006BF0000-0x0000000006C93000-memory.dmp

      Filesize

      652KB

    • memory/1408-46-0x0000000006BC0000-0x0000000006BDE000-memory.dmp

      Filesize

      120KB

    • memory/1408-15-0x0000000004480000-0x00000000044B6000-memory.dmp

      Filesize

      216KB

    • memory/1408-36-0x000000006FFB0000-0x000000006FFFC000-memory.dmp

      Filesize

      304KB

    • memory/1408-16-0x0000000004AF0000-0x0000000005118000-memory.dmp

      Filesize

      6.2MB

    • memory/1408-18-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/1408-26-0x0000000005340000-0x00000000053A6000-memory.dmp

      Filesize

      408KB

    • memory/1408-20-0x00000000051A0000-0x00000000051C2000-memory.dmp

      Filesize

      136KB

    • memory/1408-35-0x0000000005FD0000-0x0000000006002000-memory.dmp

      Filesize

      200KB

    • memory/1408-34-0x0000000005A30000-0x0000000005A7C000-memory.dmp

      Filesize

      304KB

    • memory/1408-32-0x0000000005520000-0x0000000005874000-memory.dmp

      Filesize

      3.3MB

    • memory/1408-19-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/1408-33-0x00000000059F0000-0x0000000005A0E000-memory.dmp

      Filesize

      120KB

    • memory/1744-60-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/1744-63-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/1744-17-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/1744-62-0x00000000067C0000-0x0000000006810000-memory.dmp

      Filesize

      320KB

    • memory/1744-12-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/1744-11-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/1744-61-0x0000000006990000-0x0000000006B52000-memory.dmp

      Filesize

      1.8MB

    • memory/3052-2-0x0000000005F60000-0x0000000006504000-memory.dmp

      Filesize

      5.6MB

    • memory/3052-9-0x0000000006DA0000-0x0000000006E2C000-memory.dmp

      Filesize

      560KB

    • memory/3052-6-0x0000000005F40000-0x0000000005F58000-memory.dmp

      Filesize

      96KB

    • memory/3052-7-0x00000000745AE000-0x00000000745AF000-memory.dmp

      Filesize

      4KB

    • memory/3052-8-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/3052-5-0x0000000005B70000-0x0000000005B7A000-memory.dmp

      Filesize

      40KB

    • memory/3052-4-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/3052-3-0x0000000005A50000-0x0000000005AE2000-memory.dmp

      Filesize

      584KB

    • memory/3052-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

      Filesize

      4KB

    • memory/3052-10-0x0000000006FD0000-0x000000000706C000-memory.dmp

      Filesize

      624KB

    • memory/3052-14-0x00000000745A0000-0x0000000074D50000-memory.dmp

      Filesize

      7.7MB

    • memory/3052-1-0x0000000000FB0000-0x0000000001064000-memory.dmp

      Filesize

      720KB