Analysis

  • max time kernel
    138s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2024 14:46

General

  • Target

    eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe

  • Size

    617KB

  • MD5

    eaea89ffe6d4b4cf6ed884ad1d0ce3b1

  • SHA1

    e21978d9dac6a6f88b786324105ec055353267a6

  • SHA256

    28984f99390046e6c5e911da9a0d64d0bb399660448107bd288db3e71c1ebdcf

  • SHA512

    2c6f6de1b91452598f315ba8a0a1fe96b82463ab998a845cb480a5ed5b163fa2609e7cfdfd4eafe1c3d6ec4a73145942aaff167f64d4e100ea4d7d9b17ed3b32

  • SSDEEP

    12288:vvazqXUCABkDDDDDDab/Cw+hRWQKYELut5NKUGr0+R9pkJGIGM9oIoAyJc7lr7v:vvRXUtjbCwajKYK45zGAw+cIhowWwr7v

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 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe
    "C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2700
    • C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe
      "C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe"
      2⤵
        PID:1888
      • C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe
        "C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe"
        2⤵
          PID:4980
        • C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe
          "C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe"
          2⤵
            PID:4672
          • C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.exe
            "C:\Users\Admin\AppData\Local\Temp\eaea89ffe6d4b4cf6ed884ad1d0ce3b1.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:972
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CBAKFCBFHJDH" & exit
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4472
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                4⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:4980
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 272
            2⤵
            • Program crash
            PID:1508
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2700 -ip 2700
          1⤵
            PID:4620

          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/972-31-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-49-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-13-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-15-0x0000000020140000-0x000000002039F000-memory.dmp

            Filesize

            2.4MB

          • memory/972-22-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-30-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-81-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-32-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-48-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-6-0x0000000000CB0000-0x0000000000D4C000-memory.dmp

            Filesize

            624KB

          • memory/972-56-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-2-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-3-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-72-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-79-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/972-80-0x0000000000400000-0x0000000000676000-memory.dmp

            Filesize

            2.5MB

          • memory/2700-0-0x0000000000D42000-0x0000000000D43000-memory.dmp

            Filesize

            4KB