Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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).

  • 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 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:1988
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:2764
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\ProgramData\KEGCBKKJDH.exe
          "C:\ProgramData\KEGCBKKJDH.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1332
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:2436
            • 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:1308
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AKKFHDAKECFH" & exit
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1228
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:2384

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Cab1CB6.tmp

        Filesize

        70KB

        MD5

        49aebf8cbd62d92ac215b2923fb1b9f5

        SHA1

        1723be06719828dda65ad804298d0431f6aff976

        SHA256

        b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

        SHA512

        bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

      • C:\Users\Admin\AppData\Local\Temp\Tar1CC9.tmp

        Filesize

        181KB

        MD5

        4ea6026cf93ec6338144661bf1202cd1

        SHA1

        a1dec9044f750ad887935a01430bf49322fbdcb7

        SHA256

        8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

        SHA512

        6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

      • \ProgramData\KEGCBKKJDH.exe

        Filesize

        371KB

        MD5

        687846a623c1fe1da95f0fa2fe4479df

        SHA1

        6609d10980800b669e723d4c660c421e27695a29

        SHA256

        bfc7b367d52504b184d127e385219006c1efc7e985d608c000e5eb3a204fc779

        SHA512

        fe150d4f02532ca3d5aa37c6d14741a0a9c0290854ac6924da282ad6585b47bf98e8443aa4281ea89788b8e906f8d11d49b3e88a11e10d4d67b6e2605004a9c3

      • memory/1308-402-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1308-404-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1308-396-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1308-398-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1308-399-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1308-395-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1308-397-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1308-413-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1308-407-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1332-406-0x0000000073820000-0x0000000073F0E000-memory.dmp

        Filesize

        6.9MB

      • memory/1332-375-0x0000000000E70000-0x0000000000ED0000-memory.dmp

        Filesize

        384KB

      • memory/1332-374-0x000000007382E000-0x000000007382F000-memory.dmp

        Filesize

        4KB

      • memory/1988-0-0x000000007490E000-0x000000007490F000-memory.dmp

        Filesize

        4KB

      • memory/1988-4-0x0000000074900000-0x0000000074FEE000-memory.dmp

        Filesize

        6.9MB

      • memory/1988-1-0x0000000001240000-0x00000000017AA000-memory.dmp

        Filesize

        5.4MB

      • memory/1988-17-0x0000000074900000-0x0000000074FEE000-memory.dmp

        Filesize

        6.9MB

      • memory/2780-8-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-228-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-285-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-304-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-209-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-183-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2780-182-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-163-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-3-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-7-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-5-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-6-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-9-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2780-12-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-14-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB

      • memory/2780-16-0x0000000000400000-0x0000000000B77000-memory.dmp

        Filesize

        7.5MB