Analysis

  • max time kernel
    144s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2024 13:12

General

  • Target

    RFQ-2309540_27112024.exe

  • Size

    894KB

  • MD5

    f05b1298bf8555de86f520d70ed3fad8

  • SHA1

    565b0c2dba6a94ce07c5a6420e3e4e361f8c10d2

  • SHA256

    679d4adfa31562efe8999c9cbe785be55016ae18b38c31d66afcf705cb74a0c1

  • SHA512

    ac08ab779745bac619910aa53dfa4bf18970b63f15ec505da2a9c9e845caa3673b1b52aad75772602f33cea821784a4e9a6e3ec2f1a006f8fc451a9bca92735f

  • SSDEEP

    12288:lQ7Z4u8WNTyf5Mkx3e3ryy+TS1TizI5SWXh9bZwZ1dUFxYMp8H7mNKvCZ:XupNT+h3e3rydS1OUnzu6uH+K

Malware Config

Extracted

Family

vipkeylogger

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.

  • 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 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 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ-2309540_27112024.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ-2309540_27112024.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:920
    • 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\RFQ-2309540_27112024.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2304
    • C:\Users\Admin\AppData\Local\Temp\RFQ-2309540_27112024.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ-2309540_27112024.exe"
      2⤵
        PID:2604
      • C:\Users\Admin\AppData\Local\Temp\RFQ-2309540_27112024.exe
        "C:\Users\Admin\AppData\Local\Temp\RFQ-2309540_27112024.exe"
        2⤵
          PID:4488
        • C:\Users\Admin\AppData\Local\Temp\RFQ-2309540_27112024.exe
          "C:\Users\Admin\AppData\Local\Temp\RFQ-2309540_27112024.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:3680

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ-2309540_27112024.exe.log

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qti5dbys.d4u.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/920-6-0x0000000005270000-0x000000000528C000-memory.dmp

        Filesize

        112KB

      • memory/920-3-0x0000000004DF0000-0x0000000004E82000-memory.dmp

        Filesize

        584KB

      • memory/920-4-0x0000000004DE0000-0x0000000004DEA000-memory.dmp

        Filesize

        40KB

      • memory/920-5-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/920-15-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/920-7-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

        Filesize

        4KB

      • memory/920-8-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/920-9-0x0000000007780000-0x000000000780E000-memory.dmp

        Filesize

        568KB

      • memory/920-10-0x0000000009EE0000-0x0000000009F7C000-memory.dmp

        Filesize

        624KB

      • memory/920-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

        Filesize

        4KB

      • memory/920-2-0x0000000005300000-0x00000000058A4000-memory.dmp

        Filesize

        5.6MB

      • memory/920-1-0x0000000000320000-0x0000000000406000-memory.dmp

        Filesize

        920KB

      • memory/2304-51-0x0000000007060000-0x000000000707A000-memory.dmp

        Filesize

        104KB

      • memory/2304-49-0x0000000006F20000-0x0000000006FC3000-memory.dmp

        Filesize

        652KB

      • memory/2304-18-0x0000000004E60000-0x0000000005488000-memory.dmp

        Filesize

        6.2MB

      • memory/2304-19-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/2304-17-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/2304-20-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/2304-61-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/2304-22-0x00000000054C0000-0x00000000054E2000-memory.dmp

        Filesize

        136KB

      • memory/2304-29-0x0000000005700000-0x0000000005766000-memory.dmp

        Filesize

        408KB

      • memory/2304-28-0x0000000005560000-0x00000000055C6000-memory.dmp

        Filesize

        408KB

      • memory/2304-58-0x0000000007380000-0x0000000007388000-memory.dmp

        Filesize

        32KB

      • memory/2304-34-0x0000000005870000-0x0000000005BC4000-memory.dmp

        Filesize

        3.3MB

      • memory/2304-35-0x0000000005D30000-0x0000000005D4E000-memory.dmp

        Filesize

        120KB

      • memory/2304-36-0x0000000005D70000-0x0000000005DBC000-memory.dmp

        Filesize

        304KB

      • memory/2304-38-0x00000000706E0000-0x000000007072C000-memory.dmp

        Filesize

        304KB

      • memory/2304-37-0x0000000006300000-0x0000000006332000-memory.dmp

        Filesize

        200KB

      • memory/2304-48-0x0000000006340000-0x000000000635E000-memory.dmp

        Filesize

        120KB

      • memory/2304-16-0x0000000002440000-0x0000000002476000-memory.dmp

        Filesize

        216KB

      • memory/2304-50-0x00000000076A0000-0x0000000007D1A000-memory.dmp

        Filesize

        6.5MB

      • memory/2304-57-0x00000000073A0000-0x00000000073BA000-memory.dmp

        Filesize

        104KB

      • memory/2304-52-0x00000000070D0000-0x00000000070DA000-memory.dmp

        Filesize

        40KB

      • memory/2304-53-0x00000000072E0000-0x0000000007376000-memory.dmp

        Filesize

        600KB

      • memory/2304-54-0x0000000007260000-0x0000000007271000-memory.dmp

        Filesize

        68KB

      • memory/2304-55-0x0000000007290000-0x000000000729E000-memory.dmp

        Filesize

        56KB

      • memory/2304-56-0x00000000072A0000-0x00000000072B4000-memory.dmp

        Filesize

        80KB

      • memory/3680-11-0x0000000000400000-0x0000000000448000-memory.dmp

        Filesize

        288KB

      • memory/3680-14-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/3680-21-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/3680-62-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB

      • memory/3680-63-0x0000000006D80000-0x0000000006F42000-memory.dmp

        Filesize

        1.8MB

      • memory/3680-64-0x0000000006C00000-0x0000000006C50000-memory.dmp

        Filesize

        320KB

      • memory/3680-65-0x0000000007480000-0x00000000079AC000-memory.dmp

        Filesize

        5.2MB

      • memory/3680-66-0x0000000074CB0000-0x0000000075460000-memory.dmp

        Filesize

        7.7MB