Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-07-2024 17:20

General

  • Target

    software.exe

  • Size

    5.5MB

  • MD5

    1ed6f9d578e14edad0bf47edf1f6269f

  • SHA1

    0e6546d7a7f237a4c094e24810fd4ab29ab6a970

  • SHA256

    83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3

  • SHA512

    7481e391bc9fd0b0a30ca7464847e6ab0bbaa4febb8bfb33407742fd2e90f7fb0d88fd2ab0dc49fa499864e16a234d6f910926944c2a3ce337d614351dccfd60

  • SSDEEP

    98304:zeL9fRCBL/JS6w1PMcf5blPwJp003KOIupEAjlgJHc6:zeL9ROL/Eh/PQbaObEACl

Malware Config

Extracted

Family

vidar

C2

https://t.me/bu77un

https://steamcommunity.com/profiles/76561199730044335

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1

Extracted

Family

lumma

C2

https://civilizzzationo.shop/api

Signatures

  • Detect Vidar Stealer 5 IoCs
  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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 2 IoCs
  • Program crash 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\software.exe
    "C:\Users\Admin\AppData\Local\Temp\software.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3548
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:1972
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
          PID:316
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
          2⤵
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:5012
          • C:\ProgramData\BGIIDAEBGC.exe
            "C:\ProgramData\BGIIDAEBGC.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2596
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:224
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 308
              4⤵
              • Program crash
              PID:4044
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FCFBFHIEBKJK" & exit
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3012
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • Delays execution with timeout.exe
              PID:4072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2596 -ip 2596
        1⤵
          PID:3132

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\BGIIDAEBGC.exe

          Filesize

          937KB

          MD5

          168c5908924803d268d26965c32a5620

          SHA1

          9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

          SHA256

          2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

          SHA512

          749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

        • memory/224-146-0x0000000000400000-0x0000000000457000-memory.dmp

          Filesize

          348KB

        • memory/224-142-0x0000000000400000-0x0000000000457000-memory.dmp

          Filesize

          348KB

        • memory/2596-139-0x0000000000C80000-0x0000000000C81000-memory.dmp

          Filesize

          4KB

        • memory/3548-41-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-65-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-6-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-37-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-63-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-1-0x00000000004F0000-0x0000000000A6A000-memory.dmp

          Filesize

          5.5MB

        • memory/3548-2-0x00000000053B0000-0x000000000544C000-memory.dmp

          Filesize

          624KB

        • memory/3548-70-0x0000000074470000-0x0000000074C20000-memory.dmp

          Filesize

          7.7MB

        • memory/3548-61-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-57-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-55-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-53-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-51-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-50-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-47-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-35-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-33-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-43-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-0-0x000000007447E000-0x000000007447F000-memory.dmp

          Filesize

          4KB

        • memory/3548-39-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-3-0x0000000074470000-0x0000000074C20000-memory.dmp

          Filesize

          7.7MB

        • memory/3548-5-0x00000000052E0000-0x00000000052FC000-memory.dmp

          Filesize

          112KB

        • memory/3548-45-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-29-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-27-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-25-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-23-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-21-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-19-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-17-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-15-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-13-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-11-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-9-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-7-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-59-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-31-0x00000000052E0000-0x00000000052F5000-memory.dmp

          Filesize

          84KB

        • memory/3548-4-0x0000000005450000-0x0000000005534000-memory.dmp

          Filesize

          912KB

        • memory/5012-81-0x0000000000400000-0x0000000000648000-memory.dmp

          Filesize

          2.3MB

        • memory/5012-145-0x0000000000400000-0x0000000000648000-memory.dmp

          Filesize

          2.3MB

        • memory/5012-66-0x0000000000400000-0x0000000000648000-memory.dmp

          Filesize

          2.3MB

        • memory/5012-71-0x0000000000400000-0x0000000000648000-memory.dmp

          Filesize

          2.3MB

        • memory/5012-68-0x0000000000400000-0x0000000000648000-memory.dmp

          Filesize

          2.3MB