Analysis

  • max time kernel
    94s
  • max time network
    152s
  • 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, 13:10

General

  • Target
    021337ISOGENERAL.exe
  • Size 431KB
  • Sample241202-qectzazqaq
  • SHA256 ce7202372e7e915e6cf9fb52e1ffe3083602f3a9b761f1d4b9e6045eabe065c1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vipkeylogger

C2
  • https://api.telegram.org/bot6478451606:AAFbKLDgEUUeIzZ7hQq9aJhHVTZpkPUZ2-Y/sendMessage?chat_id=6755467222

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • VIPKeylogger

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

  • Vipkeylogger family
  • Loads dropped DLL 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\021337ISOGENERAL.exe
    "C:\Users\Admin\AppData\Local\Temp\021337ISOGENERAL.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Users\Admin\AppData\Local\Temp\021337ISOGENERAL.exe
      "C:\Users\Admin\AppData\Local\Temp\021337ISOGENERAL.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4940
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4940 -s 2272
        3⤵
        • Program crash
        PID:456
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4940 -ip 4940
    1⤵
      PID:1372

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsf87CE.tmp\System.dll
          • Size 11KB
          • SHA256 bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
          • MD5 SHA1 SHA512 SSDEEP

          memory/2716-12-0x0000000004090000-0x0000000006644000-memory.dmp

          memory/2716-13-0x00000000775B1000-0x00000000776D1000-memory.dmp

          memory/2716-14-0x0000000010004000-0x0000000010005000-memory.dmp

          memory/2716-15-0x0000000004090000-0x0000000006644000-memory.dmp

          memory/4940-16-0x00000000016C0000-0x0000000003C74000-memory.dmp

          memory/4940-29-0x0000000000460000-0x00000000016B4000-memory.dmp

          memory/4940-30-0x0000000000460000-0x00000000004AA000-memory.dmp

          memory/4940-31-0x0000000036A10000-0x0000000036FB4000-memory.dmp

          memory/4940-32-0x00000000345E0000-0x000000003467C000-memory.dmp

          memory/4940-34-0x00000000016C0000-0x0000000003C74000-memory.dmp