Analysis

  • max time kernel
    140s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/01/2023, 17:11

General

  • Target

    infected/Setup x64.exe

  • Size

    331.8MB

  • MD5

    4210316bf41a99563cca90927f82244d

  • SHA1

    fe76eba47cb59bbc8a45dd6e856d729e578081da

  • SHA256

    0c7e2b060922788050b2af5250a8ebd462f9d52bdfd6ed6e9cf3a7a80420f12a

  • SHA512

    db43e3f85856c7b7de9fd99526637a3e5fc07ab34b52426538c4fc1aae780db6039c7ef14b50c9cbcd48e9e544250408d71183c9272f3b088e4e4cc21db2f6bb

  • SSDEEP

    196608:Hajex6RtY/8gpeV8gULTfHjZUtuggWAezYpT:hg8gULTfDONgWAezYp

Malware Config

Extracted

Family

vidar

Version

1.8

Botnet

814

C2

https://t.me/year2023start

https://steamcommunity.com/profiles/76561199467421923

Attributes
  • profile_id

    814

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\infected\Setup x64.exe
    "C:\Users\Admin\AppData\Local\Temp\infected\Setup x64.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\InstallUtil.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4888
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2392
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:1828

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\ProgramData\mozglue.dll

          Filesize

          133KB

          MD5

          8f73c08a9660691143661bf7332c3c27

          SHA1

          37fa65dd737c50fda710fdbde89e51374d0c204a

          SHA256

          3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

          SHA512

          0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

        • C:\ProgramData\nss3.dll

          Filesize

          1.2MB

          MD5

          bfac4e3c5908856ba17d41edcd455a51

          SHA1

          8eec7e888767aa9e4cca8ff246eb2aacb9170428

          SHA256

          e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

          SHA512

          2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

        • memory/2512-133-0x00007FFCC3CB0000-0x00007FFCC4771000-memory.dmp

          Filesize

          10.8MB

        • memory/2512-132-0x0000000000D90000-0x00000000017FE000-memory.dmp

          Filesize

          10.4MB

        • memory/2512-138-0x00007FFCC3CB0000-0x00007FFCC4771000-memory.dmp

          Filesize

          10.8MB

        • memory/4888-140-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/4888-141-0x0000000051270000-0x0000000051302000-memory.dmp

          Filesize

          584KB

        • memory/4888-139-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/4888-137-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/4888-136-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/4888-163-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB

        • memory/4888-134-0x0000000000400000-0x0000000000460000-memory.dmp

          Filesize

          384KB