Analysis

  • max time kernel
    96s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2024 07:34

General

  • Target

    49b342bc51fce077b6079d1473f88d69c6351ad2fdcee09abc47daee8f8fb368.exe

  • Size

    326KB

  • MD5

    cd1dd15260d20a8c28df1556bc0c5983

  • SHA1

    c47ef32d02d874bca3aad6744f34d22978a5726d

  • SHA256

    49b342bc51fce077b6079d1473f88d69c6351ad2fdcee09abc47daee8f8fb368

  • SHA512

    48628f7f6f0e6c8cfa2a442a21cfff2fde302d56ae98926d883069265689c03ad17d3a83ab9935a38f3eaec1559e83bdba53f4b05e2449c25c175a9d81c67f4f

  • SSDEEP

    6144:wklJXiLEvKWkSRffjD4EfdBOomRKjp1xzN3MQzY9W6+tommuHEO:VlViLiPxRXjsETOfK9t3bR6+Gm9EO

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Extracted

Family

vidar

Version

11

Botnet

e90840a846d017e7b095f7543cdf2d15

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://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

https://wallkedsleeoi.shop/api

Extracted

Family

lumma

C2

https://wallkedsleeoi.shop/api

https://gutterydhowi.shop/api

https://ghostreedmnu.shop/api

https://offensivedzvju.shop/api

https://vozmeatillu.shop/api

https://drawzhotdog.shop/api

https://fragnantbui.shop/api

https://stogeneratmns.shop/api

https://reinforcenh.shop/api

https://ballotnwu.site/api

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Lumma Stealer, LummaC

    Lumma or LummaC is 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.

  • Grants admin privileges 1 TTPs

    Uses net.exe to modify the user's privileges.

  • Downloads MZ/PE file
  • Modifies Windows Firewall 2 TTPs 2 IoCs
  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 3 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.

  • Looks up external IP address via web service 1 IoCs

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

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Permission Groups Discovery: Local Groups 1 TTPs

    Attempt to find local system groups and permission settings.

  • System Location Discovery: System Language Discovery 1 TTPs 26 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 4 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49b342bc51fce077b6079d1473f88d69c6351ad2fdcee09abc47daee8f8fb368.exe
    "C:\Users\Admin\AppData\Local\Temp\49b342bc51fce077b6079d1473f88d69c6351ad2fdcee09abc47daee8f8fb368.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3384
    • 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:616
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminDGHIECGCBK.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1668
        • C:\Users\AdminDGHIECGCBK.exe
          "C:\Users\AdminDGHIECGCBK.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2344
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
              PID:4528
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
              • System Location Discovery: System Language Discovery
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:3652
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminGIEBAECAKK.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4336
          • C:\Users\AdminGIEBAECAKK.exe
            "C:\Users\AdminGIEBAECAKK.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1028
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:992
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminAFCFHDHIII.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4432
          • C:\Users\AdminAFCFHDHIII.exe
            "C:\Users\AdminAFCFHDHIII.exe"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3228
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c net user
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:244
              • C:\Windows\SysWOW64\net.exe
                net user
                6⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:728
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 user
                  7⤵
                  • System Location Discovery: System Language Discovery
                  PID:588
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\RDPWInst.exe" -i
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3996
              • C:\Users\Admin\AppData\Local\Temp\RDPWInst.exe
                C:\Users\Admin\AppData\Local\Temp\RDPWInst.exe -i
                6⤵
                • Server Software Component: Terminal Services DLL
                • Executes dropped EXE
                • Modifies WinLogon
                • Drops file in System32 directory
                • Drops file in Program Files directory
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:4512
                • C:\Windows\SYSTEM32\netsh.exe
                  netsh advfirewall firewall add rule name="Remote Desktop" dir=in protocol=tcp localport=3389 profile=any action=allow
                  7⤵
                  • Modifies Windows Firewall
                  • Event Triggered Execution: Netsh Helper DLL
                  PID:3476
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c net user RDPUser_2a01a06b vfGmI3f3iZJw /add
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2104
              • C:\Windows\SysWOW64\net.exe
                net user RDPUser_2a01a06b vfGmI3f3iZJw /add
                6⤵
                • System Location Discovery: System Language Discovery
                PID:2692
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 user RDPUser_2a01a06b vfGmI3f3iZJw /add
                  7⤵
                  • System Location Discovery: System Language Discovery
                  PID:3616
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c net localgroup
              5⤵
              • System Location Discovery: System Language Discovery
              PID:4792
              • C:\Windows\SysWOW64\net.exe
                net localgroup
                6⤵
                • System Location Discovery: System Language Discovery
                PID:1308
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 localgroup
                  7⤵
                  • System Location Discovery: System Language Discovery
                  PID:2456
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c netsh advfirewall firewall add rule name="RDP" dir=in action=allow protocol=tcp localport=3389
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2240
              • C:\Windows\SysWOW64\netsh.exe
                netsh advfirewall firewall add rule name="RDP" dir=in action=allow protocol=tcp localport=3389
                6⤵
                • Modifies Windows Firewall
                • Event Triggered Execution: Netsh Helper DLL
                • System Location Discovery: System Language Discovery
                PID:2872
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /c net localgroup "Administrators" RDPUser_2a01a06b /add
              5⤵
              • System Location Discovery: System Language Discovery
              PID:5048
              • C:\Windows\SysWOW64\net.exe
                net localgroup "Administrators" RDPUser_2a01a06b /add
                6⤵
                • System Location Discovery: System Language Discovery
                PID:1428
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 localgroup "Administrators" RDPUser_2a01a06b /add
                  7⤵
                  • System Location Discovery: System Language Discovery
                  PID:868
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k NetworkService -s TermService
      1⤵
        PID:4312
      • C:\Windows\System32\svchost.exe
        C:\Windows\System32\svchost.exe -k NetworkService -s TermService
        1⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1100

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • 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\AdminAFCFHDHIII.exe

        Filesize

        72KB

        MD5

        3fcbaacca9cc6dccf0649f5abb8b73eb

        SHA1

        b0c5d6768b041c992db13adbf9d1152eae2dcfe4

        SHA256

        a50e7f2b8528539d7f9eee179010f35c20ad3854e773e40a98023d594113653a

        SHA512

        055313b85862f58573a589785b3d6a63ff41b105fd78bd7956dff7ec532075cc03954ae492f50562ed5faa6850656570a22552c75a5e47ea768ced8893768ac6

      • C:\Users\AdminDGHIECGCBK.exe

        Filesize

        403KB

        MD5

        f73186df5a030cf7f186b0737c3af1f7

        SHA1

        d15e45feefbbc010db92ae897d80bc7419c0d046

        SHA256

        05c67a9765fe1ebebcedaee376f87a803d7cd37e6c5c19f7d336c2f14a4ef207

        SHA512

        a6e4d6e34748fa8fb9153e2104cf49cc36af9b22e29c8df050de0db4e14e9dd18ed178b4bbacd6289a0a55b465c996fb931799ba970dfe559c85215db7e31df1

      • C:\Users\AdminGIEBAECAKK.exe

        Filesize

        376KB

        MD5

        47697a60a96c5adef362d8da9a274b7d

        SHA1

        16dbc512f121c27e2cb48a61d6dcf166aa792e0d

        SHA256

        63d86693917598df88d518c057c7680b5bd2de9add384425f81ead95eee18dba

        SHA512

        4f18db753fbd9f08842630dd2ac97dc6b368269c80dfc8a2f880baa80010db013c8168a6c19465f5d843ae135b162a63eb2dc1c48ea93c5b255868c77c591a17

      • C:\Users\Admin\AppData\Local\Temp\RDPWInst.exe

        Filesize

        1.7MB

        MD5

        c213162c86bb943bcdf91b3df381d2f6

        SHA1

        8ec200e2d836354a62f16cdb3eed4bb760165425

        SHA256

        ac91b2a2db1909a2c166e243391846ad8d9ede2c6fcfd33b60acf599e48f9afc

        SHA512

        b3ead28bb1f4b87b0c36c129864a8af34fc11e5e9feaa047d4ca0525bec379d07c8efee259ede8832b65b3c03ef4396c9202989249199f7037d56439187f147b

      • \??\c:\program files\rdp wrapper\rdpwrap.dll

        Filesize

        114KB

        MD5

        461ade40b800ae80a40985594e1ac236

        SHA1

        b3892eef846c044a2b0785d54a432b3e93a968c8

        SHA256

        798af20db39280f90a1d35f2ac2c1d62124d1f5218a2a0fa29d87a13340bd3e4

        SHA512

        421f9060c4b61fa6f4074508602a2639209032fd5df5bfc702a159e3bad5479684ccb3f6e02f3e38fb8db53839cf3f41fe58a3acad6ec1199a48dc333b2d8a26

      • \??\c:\program files\rdp wrapper\rdpwrap.ini

        Filesize

        433KB

        MD5

        92bc5fedb559357aa69d516a628f45dc

        SHA1

        6468a9fa0271724e70243eab49d200f457d3d554

        SHA256

        85cd5cd634fa8bbbf8d71b0a7d49a58870ef760da6d6e7789452cae4cab28127

        SHA512

        87e210e22631c1a394918859213140a7c54b75aec9bbc4f44509959d15cfa14abcbfeb1adf9cffa11b2e88f84a8708f67e842d859e63394b7f6036ce934c3cc9

      • memory/616-10-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/616-157-0x0000000000400000-0x0000000000661000-memory.dmp

        Filesize

        2.4MB

      • memory/616-8-0x0000000000400000-0x0000000000661000-memory.dmp

        Filesize

        2.4MB

      • memory/616-6-0x0000000000400000-0x0000000000661000-memory.dmp

        Filesize

        2.4MB

      • memory/616-126-0x0000000000400000-0x0000000000661000-memory.dmp

        Filesize

        2.4MB

      • memory/616-3-0x0000000000400000-0x0000000000661000-memory.dmp

        Filesize

        2.4MB

      • memory/992-119-0x0000000000400000-0x0000000000465000-memory.dmp

        Filesize

        404KB

      • memory/992-121-0x0000000000400000-0x0000000000465000-memory.dmp

        Filesize

        404KB

      • memory/992-117-0x0000000000400000-0x0000000000465000-memory.dmp

        Filesize

        404KB

      • memory/1028-114-0x0000000000C70000-0x0000000000CD2000-memory.dmp

        Filesize

        392KB

      • memory/2344-88-0x0000000000420000-0x0000000000488000-memory.dmp

        Filesize

        416KB

      • memory/2344-97-0x0000000072D60000-0x0000000073510000-memory.dmp

        Filesize

        7.7MB

      • memory/2344-156-0x0000000072D60000-0x0000000073510000-memory.dmp

        Filesize

        7.7MB

      • memory/2344-87-0x0000000072D6E000-0x0000000072D6F000-memory.dmp

        Filesize

        4KB

      • memory/3228-115-0x0000000001880000-0x0000000001898000-memory.dmp

        Filesize

        96KB

      • memory/3228-159-0x0000000006B40000-0x0000000006BA6000-memory.dmp

        Filesize

        408KB

      • memory/3228-113-0x0000000000F70000-0x0000000000F88000-memory.dmp

        Filesize

        96KB

      • memory/3384-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

        Filesize

        4KB

      • memory/3384-125-0x0000000074C50000-0x0000000075400000-memory.dmp

        Filesize

        7.7MB

      • memory/3384-1-0x00000000008D0000-0x0000000000926000-memory.dmp

        Filesize

        344KB

      • memory/3384-7-0x0000000074C50000-0x0000000075400000-memory.dmp

        Filesize

        7.7MB

      • memory/3652-136-0x00000000200D0000-0x000000002032F000-memory.dmp

        Filesize

        2.4MB

      • memory/3652-151-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/3652-150-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/3652-90-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/3652-128-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/3652-127-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/3652-93-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/3652-98-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4512-155-0x0000000000400000-0x00000000005BE000-memory.dmp

        Filesize

        1.7MB