Analysis

  • max time kernel
    27s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 02:22

General

  • Target

    bf0ec48573b3690d9f02c89a5d9db94e51e847b3a9243f7b9ff43214a725a019.exe

  • Size

    403KB

  • MD5

    38d89dee3e519cce0366a2ce70b7ec0d

  • SHA1

    98e75d05a6d4034a5f7e1e599490e5979be454d3

  • SHA256

    bf0ec48573b3690d9f02c89a5d9db94e51e847b3a9243f7b9ff43214a725a019

  • SHA512

    627343785b7f00337128ad35d4713fe42c555c9ca142755340e8ba188a55eb7bd0bca66ed549a6065a433c5fa14fcb63199f7b1f684275a1fca344088e6d6583

  • SSDEEP

    6144:S3EwTKSa5LjtkXODX+2Ivl2OQGCNGyBax3ntJfCkddx6yNfXypNHEApkEa4MX2zS:CEwhwLjtKOcbQGCgKq/fnkNkFpX22EO

Malware Config

Extracted

Family

vidar

Version

11

Botnet

d80be45a1eb6454ca916f92c36ebf67d

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Extracted

Family

lumma

C2

https://drawzhotdog.shop/api

https://gutterydhowi.shop/api

https://ghostreedmnu.shop/api

https://offensivedzvju.shop/api

https://vozmeatillu.shop/api

https://fragnantbui.shop/api

https://stogeneratmns.shop/api

https://reinforcenh.shop/api

https://performenj.shop/api

Signatures

  • Detect Vidar Stealer 13 IoCs
  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 64 IoCs
  • Executes dropped EXE 4 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.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf0ec48573b3690d9f02c89a5d9db94e51e847b3a9243f7b9ff43214a725a019.exe
    "C:\Users\Admin\AppData\Local\Temp\bf0ec48573b3690d9f02c89a5d9db94e51e847b3a9243f7b9ff43214a725a019.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.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:320
      • C:\ProgramData\KJJECGHJDB.exe
        "C:\ProgramData\KJJECGHJDB.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4516
        • C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe
          "C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe"
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1904
          • C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe
            "C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe" --checker
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:116
      • C:\ProgramData\DAKFCGIJKJ.exe
        "C:\ProgramData\DAKFCGIJKJ.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5012
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:4444
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:216
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              4⤵
              • System Location Discovery: System Language Discovery
              PID:1908
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FIDGDAKFHIEH" & exit
            3⤵
              PID:4016
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                4⤵
                • Delays execution with timeout.exe
                PID:3332

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\DAKFCGIJKJ.exe

          Filesize

          368KB

          MD5

          0cee1d66332dec523210f62e479284b9

          SHA1

          33f950916e13a6ec654c52160ee47e88c64a5724

          SHA256

          0a6a258bfdb9b1947f2945b44e274ff3f06a7c5c733ff83c2a71c5f911fa9cc0

          SHA512

          603aa4834c6d3a9f3b6b1629eeb2108cecfd7192110f0cf948f2971957a9231ad9d405d8424e3a41b32a8ff415d8f84e55afdec38bf996703093084162d11972

        • C:\ProgramData\KJJECGHJDB.exe

          Filesize

          25KB

          MD5

          168087c84c5ff3664e5e2f4eec18d7dd

          SHA1

          639e9e87103f576617ed08c50910ca92fe5c8c5b

          SHA256

          2a7cdb79045658b9c02ebbb159e5b3680d7d6d832dbd757572f7d202c3fa935d

          SHA512

          89491261e1234f917964566def4b1a50505ba4c2eb90d14c19e2130d78fe65cd61c4bba685909109c7088b35e7fd48f6311ace7a0dd8c703a6d1b1d23d1a54bb

        • 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

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MFDBG_71ec03db64934e0b81b00a0a1b4482b4.lnk

          Filesize

          1KB

          MD5

          a3a475a33a6e8d9ba616d263ed9a6889

          SHA1

          7d28be5698146e179264d290ea53b9aa1b362bde

          SHA256

          98b93f41f0689e3cd7ce929fb12605ac23f3a689363617f303e99609e1da559d

          SHA512

          cc50b53776bdb4c8a527d2aae91fcaa748a6d0d9828f697dc0f58ccb2b5a7bb5cb0354dc1263a5e16324185e3a86810ad700718acd6f1eb9336b6ba28c9fdd15

        • memory/320-17-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-84-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-3-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-18-0x00000000229F0000-0x0000000022C4F000-memory.dmp

          Filesize

          2.4MB

        • memory/320-33-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-34-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-50-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-51-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-7-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-9-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-75-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-76-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-85-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/320-16-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/1908-146-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/1908-150-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/1908-148-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3416-83-0x0000000074640000-0x0000000074DF0000-memory.dmp

          Filesize

          7.7MB

        • memory/3416-5-0x0000000074640000-0x0000000074DF0000-memory.dmp

          Filesize

          7.7MB

        • memory/3416-0-0x000000007464E000-0x000000007464F000-memory.dmp

          Filesize

          4KB

        • memory/3416-1-0x0000000000100000-0x0000000000168000-memory.dmp

          Filesize

          416KB

        • memory/4516-100-0x00000000001C0000-0x00000000001CC000-memory.dmp

          Filesize

          48KB

        • memory/4516-99-0x0000000071EBE000-0x0000000071EBF000-memory.dmp

          Filesize

          4KB

        • memory/4516-103-0x0000000071EB0000-0x0000000072660000-memory.dmp

          Filesize

          7.7MB

        • memory/4516-118-0x0000000071EB0000-0x0000000072660000-memory.dmp

          Filesize

          7.7MB

        • memory/5012-134-0x0000000000510000-0x0000000000570000-memory.dmp

          Filesize

          384KB