Analysis

  • max time kernel
    140s
  • 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
    24-10-2024 01:07

General

  • Target

    13cf27504612ba911a324205db08dfa22cc42f3cb7e2600a69b65091ac528940.exe

  • Size

    617KB

  • MD5

    0d90ef55d1b1cb43ccb8fd30bbeba1a4

  • SHA1

    5230fea74e8c4dedda59cbcdd13a9bc7ad035ac0

  • SHA256

    13cf27504612ba911a324205db08dfa22cc42f3cb7e2600a69b65091ac528940

  • SHA512

    9ced2030fee2ffa87246949d64d01493d4afd90082d7a6a376e2ffb454cd4553c30deff65b5dcf84e803f6019b5efd711e0dfd6738de12da037b009209ad854d

  • SSDEEP

    12288:NFgKK6/E6QB44hLSVGuZwpZhOre3fpkugJtCJcplr7v:NFgS/EVe4hL0GuZwpZ6e3CXmGr7v

Malware Config

Extracted

Family

vidar

Version

11.1

Botnet

0b3bd69430b7d827b107ba2ed809207d

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 14 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.

  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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
  • 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.

  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\13cf27504612ba911a324205db08dfa22cc42f3cb7e2600a69b65091ac528940.exe
    "C:\Users\Admin\AppData\Local\Temp\13cf27504612ba911a324205db08dfa22cc42f3cb7e2600a69b65091ac528940.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1872
    • C:\Users\Admin\AppData\Local\Temp\13cf27504612ba911a324205db08dfa22cc42f3cb7e2600a69b65091ac528940.exe
      "C:\Users\Admin\AppData\Local\Temp\13cf27504612ba911a324205db08dfa22cc42f3cb7e2600a69b65091ac528940.exe"
      2⤵
        PID:4280
      • C:\Users\Admin\AppData\Local\Temp\13cf27504612ba911a324205db08dfa22cc42f3cb7e2600a69b65091ac528940.exe
        "C:\Users\Admin\AppData\Local\Temp\13cf27504612ba911a324205db08dfa22cc42f3cb7e2600a69b65091ac528940.exe"
        2⤵
        • Checks computer location settings
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4496
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\KFCFBAAEHCFH" & exit
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:764
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:3948
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1872 -s 256
        2⤵
        • Program crash
        PID:5016
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1872 -ip 1872
      1⤵
        PID:4748

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • memory/1872-0-0x00000000002C2000-0x00000000002C3000-memory.dmp

        Filesize

        4KB

      • memory/4496-33-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-34-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-24-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-16-0x000000001FF40000-0x000000002019F000-memory.dmp

        Filesize

        2.4MB

      • memory/4496-32-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-4-0x0000000000230000-0x00000000002CC000-memory.dmp

        Filesize

        624KB

      • memory/4496-50-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-15-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-51-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-52-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-74-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-3-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-1-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-75-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-82-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4496-83-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB