Resubmissions

10-10-2024 02:19

241010-crx4sazhnm 10

Analysis

  • max time kernel
    104s
  • max time network
    137s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-10-2024 02:19

General

  • Target

    Samples - 10-09-2024/45aae4515b7076d25923730c3672cb9e8f462cf402828fd3eb2d3255d626df56.exe

  • Size

    1.0MB

  • MD5

    d96552352f1a07f3a15a7edeac9158fa

  • SHA1

    874467ad9048f02dfcebc2415391f93854dfeeb6

  • SHA256

    45aae4515b7076d25923730c3672cb9e8f462cf402828fd3eb2d3255d626df56

  • SHA512

    eac4080aa9eac27327abecff4c1c2a6c92d1a573a3df1bdc10d2f6f3c39e96705911ec8c02245cb50bc59da5bb549025d7577bb10a66b2717f390b17d394c3fc

  • SSDEEP

    24576:54lavt0LkLL9IMixoEgeaP6npT4Tl7zo7RG9kq9MmCS:Ikwkn9IMHeaPe5+7zARDaPCS

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7045535067:AAFB6Qd5XE98Vho9iunrlrUC41JAx3FhGjY/sendMessage?chat_id=5916042829

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • 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 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Samples - 10-09-2024\45aae4515b7076d25923730c3672cb9e8f462cf402828fd3eb2d3255d626df56.exe
    "C:\Users\Admin\AppData\Local\Temp\Samples - 10-09-2024\45aae4515b7076d25923730c3672cb9e8f462cf402828fd3eb2d3255d626df56.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:5352
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\Samples - 10-09-2024\45aae4515b7076d25923730c3672cb9e8f462cf402828fd3eb2d3255d626df56.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:3896
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5352 -s 824
      2⤵
      • Program crash
      PID:2472
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 5352 -ip 5352
    1⤵
      PID:2236

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3896-12-0x0000000006830000-0x00000000069F2000-memory.dmp

      Filesize

      1.8MB

    • memory/3896-7-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/3896-8-0x000000007334E000-0x000000007334F000-memory.dmp

      Filesize

      4KB

    • memory/3896-9-0x0000000005BB0000-0x0000000006156000-memory.dmp

      Filesize

      5.6MB

    • memory/3896-10-0x00000000054D0000-0x000000000556C000-memory.dmp

      Filesize

      624KB

    • memory/3896-11-0x0000000073340000-0x0000000073AF1000-memory.dmp

      Filesize

      7.7MB

    • memory/3896-13-0x00000000066D0000-0x0000000006720000-memory.dmp

      Filesize

      320KB

    • memory/3896-14-0x0000000006F30000-0x000000000745C000-memory.dmp

      Filesize

      5.2MB

    • memory/3896-15-0x000000007334E000-0x000000007334F000-memory.dmp

      Filesize

      4KB

    • memory/3896-16-0x0000000073340000-0x0000000073AF1000-memory.dmp

      Filesize

      7.7MB

    • memory/3896-17-0x0000000006AA0000-0x0000000006B32000-memory.dmp

      Filesize

      584KB

    • memory/3896-18-0x0000000006A00000-0x0000000006A0A000-memory.dmp

      Filesize

      40KB

    • memory/5352-6-0x0000000001330000-0x0000000001730000-memory.dmp

      Filesize

      4.0MB