Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 18:45

General

  • Target

    0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe

  • Size

    2.4MB

  • MD5

    0afb52048ad8675d1446589f2ca050a0

  • SHA1

    2cf4d80837c5f45069086ab322418426a6b9a51d

  • SHA256

    9ed3b32cf32133e2d698b17fc0dfefddc6a3e68edb70a052a5fe5c1bc7491aa9

  • SHA512

    7a69d35322cdfbb1b89eb7afb5622e35915f446fb37b77a53d26856020b312d144663a71c6788b523f4650a26824c8e888d41aa541e0db01d188cef78108bde1

  • SSDEEP

    24576:Pm/Sj801I+zd34OOtWqv3ciWmxMg4w1v8QWgW2pNX0fqk27NoFo3t4aO78KLHidC:u/SQARUt/SyV8QC2jiqkumct498KLHi

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199686524322

https://t.me/k0mono

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Safari/605.1.15 Ddg/17.4.1

Signatures

  • Detect Vidar Stealer 10 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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).

  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Users\Admin\AppData\Local\Temp\kat2202.tmp
      C:\Users\Admin\AppData\Local\Temp\kat2202.tmp
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:860
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c start "" "C:\ProgramData\FBFHDBKJEG.exe"
        3⤵
          PID:2740
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat2202.tmp" & rd /s /q "C:\ProgramData\AKFCFBAAEHCF" & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2896
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:2200

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

    • C:\Users\Admin\AppData\Local\Temp\Tar2B0D.tmp
      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • \Users\Admin\AppData\Local\Temp\kat2202.tmp
      Filesize

      861KB

      MD5

      66064dbdb70a5eb15ebf3bf65aba254b

      SHA1

      0284fd320f99f62aca800fb1251eff4c31ec4ed7

      SHA256

      6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

      SHA512

      b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

    • memory/860-13-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-9-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-24-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-17-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-15-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-101-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-11-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-82-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-19-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-23-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-81-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/860-77-0x0000000000400000-0x0000000000646000-memory.dmp
      Filesize

      2.3MB

    • memory/2176-1-0x0000000003490000-0x00000000035F3000-memory.dmp
      Filesize

      1.4MB

    • memory/2176-21-0x0000000000400000-0x0000000000661000-memory.dmp
      Filesize

      2.4MB

    • memory/2176-0-0x0000000000220000-0x0000000000221000-memory.dmp
      Filesize

      4KB