Analysis

  • max time kernel
    92s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2024 09:00

General

  • Target

    d3dc76e29c6672e790121e3b7acf66eeacefe184e2fc75ad3f2be6e29478e0f2.exe

  • Size

    5.4MB

  • MD5

    36a83d96995c446168b609e1a78be2f2

  • SHA1

    0287565d24362cb66310fd1828f113477faeda5b

  • SHA256

    d3dc76e29c6672e790121e3b7acf66eeacefe184e2fc75ad3f2be6e29478e0f2

  • SHA512

    7a8782e68ca89833d50b73709fccfca1e566566acbac1a6f520c848cdfebc88d3d926ae651a5883f631ccdc7cf8ef85deaad8d55403e0b11db5def14e42c51f9

  • SSDEEP

    98304:VdrNiA8MrTLJfiEOgYjmTSoWWNBQR1KNEU2KxbMrUEAweMDa2AmJImWwu2EoF6:Hhj8MrTL3O5jmeoW920cTMDanmamWU6

Malware Config

Extracted

Family

vidar

Version

11

Botnet

851a571734f99bc6b99c23ec833c0bb8

C2

https://t.me/jamsemlg

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://reinforcenh.shop/api

https://stogeneratmns.shop/api

https://fragnantbui.shop/api

https://drawzhotdog.shop/api

https://vozmeatillu.shop/api

https://offensivedzvju.shop/api

https://ghostreedmnu.shop/api

https://gutterydhowi.shop/api

Extracted

Family

lumma

C2

https://offensivedzvju.shop/api

Signatures

  • Detect Vidar Stealer 12 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 1 IoCs

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

  • Executes dropped EXE 1 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 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).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 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 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3dc76e29c6672e790121e3b7acf66eeacefe184e2fc75ad3f2be6e29478e0f2.exe
    "C:\Users\Admin\AppData\Local\Temp\d3dc76e29c6672e790121e3b7acf66eeacefe184e2fc75ad3f2be6e29478e0f2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2588
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:1808
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:2160
        • 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
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4712
          • C:\ProgramData\BGIJEGCGDG.exe
            "C:\ProgramData\BGIJEGCGDG.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3704
            • 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:1568
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1568 -s 1344
                5⤵
                • Program crash
                PID:2904
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1568 -s 1372
                5⤵
                • Program crash
                PID:2024
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DHCBAEHJJJKK" & exit
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4972
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:3996
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1568 -ip 1568
        1⤵
          PID:3672
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1568 -ip 1568
          1⤵
            PID:1240

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\BGIJEGCGDG.exe

            Filesize

            371KB

            MD5

            687846a623c1fe1da95f0fa2fe4479df

            SHA1

            6609d10980800b669e723d4c660c421e27695a29

            SHA256

            bfc7b367d52504b184d127e385219006c1efc7e985d608c000e5eb3a204fc779

            SHA512

            fe150d4f02532ca3d5aa37c6d14741a0a9c0290854ac6924da282ad6585b47bf98e8443aa4281ea89788b8e906f8d11d49b3e88a11e10d4d67b6e2605004a9c3

          • C:\ProgramData\DHJECFCGHI.exe

            Filesize

            4KB

            MD5

            2c2679839235495c12aafe079b346d29

            SHA1

            483d5abd437c545f6d40c2d7e31181bbc5998f6d

            SHA256

            d10cadfccc0c7954c2566dae0e6191141d66a88de08d315082ca7e7319e80c1a

            SHA512

            5dfbdf40c7a3dca3bd076a2020ba6aa541bc0bd285c95f731cb9643d25bfc594ef597428d2e7c81d828e8e4da4bcce3562b24c25a0f755207d8edc6540b29ddb

          • memory/1568-112-0x0000000000400000-0x0000000000463000-memory.dmp

            Filesize

            396KB

          • memory/1568-127-0x0000000000400000-0x0000000000463000-memory.dmp

            Filesize

            396KB

          • memory/1568-115-0x0000000000400000-0x0000000000463000-memory.dmp

            Filesize

            396KB

          • memory/1568-109-0x0000000000400000-0x0000000000463000-memory.dmp

            Filesize

            396KB

          • memory/2588-11-0x00000000750D0000-0x0000000075880000-memory.dmp

            Filesize

            7.7MB

          • memory/2588-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

            Filesize

            4KB

          • memory/2588-1-0x0000000000A30000-0x0000000000F9A000-memory.dmp

            Filesize

            5.4MB

          • memory/2588-106-0x00000000750D0000-0x0000000075880000-memory.dmp

            Filesize

            7.7MB

          • memory/3704-134-0x0000000072CA0000-0x0000000073450000-memory.dmp

            Filesize

            7.7MB

          • memory/3704-114-0x0000000072CA0000-0x0000000073450000-memory.dmp

            Filesize

            7.7MB

          • memory/3704-105-0x0000000000950000-0x00000000009B0000-memory.dmp

            Filesize

            384KB

          • memory/3704-107-0x0000000072CAE000-0x0000000072CAF000-memory.dmp

            Filesize

            4KB

          • memory/4712-27-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-91-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-90-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-73-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-72-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-56-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-55-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-29-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            Filesize

            972KB

          • memory/4712-28-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-6-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-8-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB

          • memory/4712-3-0x0000000000400000-0x0000000000B77000-memory.dmp

            Filesize

            7.5MB