Analysis

  • max time kernel
    139s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-10-2024 06:35

General

  • Target

    e55cbeb012a639d835b81169529cedb22e8d677f97385187465917e25cf61f93.exe

  • Size

    573KB

  • MD5

    dda6da0c7774778b1d24c8d3d79897a7

  • SHA1

    0d0cda4b934f27ca472d512837d1449fe106195f

  • SHA256

    e55cbeb012a639d835b81169529cedb22e8d677f97385187465917e25cf61f93

  • SHA512

    cbf8edb72c5f5cb549f5b76dd4acae927738dfbec9995a0db9d6fefb36bcb88cebb91d34969823a71eb77b7afdc8daf52e3188bc2dde28d38d0a2de7943c4241

  • SSDEEP

    12288:qrk6eNm+GXybEoQJQwJvE5bpGuLR+LMxTjDr9jY5e74dEO:qw6eNACYoQJQwtHmzn9jY5UQt

Malware Config

Extracted

Family

vidar

Version

11.1

Botnet

191375c1805c0d5109ea6297d63371b2

C2

https://steamcommunity.com/profiles/76561199786602107

https://t.me/lpnjoke

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

  • Detect Vidar Stealer 4 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 4 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e55cbeb012a639d835b81169529cedb22e8d677f97385187465917e25cf61f93.exe
    "C:\Users\Admin\AppData\Local\Temp\e55cbeb012a639d835b81169529cedb22e8d677f97385187465917e25cf61f93.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4032
    • C:\Users\Admin\AppData\Local\Temp\e55cbeb012a639d835b81169529cedb22e8d677f97385187465917e25cf61f93.exe
      "C:\Users\Admin\AppData\Local\Temp\e55cbeb012a639d835b81169529cedb22e8d677f97385187465917e25cf61f93.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2616
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\e55cbeb012a639d835b81169529cedb22e8d677f97385187465917e25cf61f93.exe" & rd /s /q "C:\ProgramData\HJKJKKKJJJKJ" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3852
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:5096
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 276
      2⤵
      • Program crash
      PID:3516
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4032 -ip 4032
    1⤵
      PID:1860

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2616-2-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/2616-3-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/2616-4-0x0000000000C50000-0x0000000000CE1000-memory.dmp

      Filesize

      580KB

    • memory/2616-13-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/2616-14-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/2616-15-0x0000000022E30000-0x000000002308F000-memory.dmp

      Filesize

      2.4MB

    • memory/4032-0-0x0000000000CDB000-0x0000000000CDC000-memory.dmp

      Filesize

      4KB