Analysis

  • max time kernel
    96s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2024 01:05

General

  • Target

    4255c39df67a2a762ae4245ad040b1bee62e3b51154446cabf48f7f01cb6fd95.exe

  • Size

    404KB

  • MD5

    44723eb5e4cd0352241c74aeb4fa93e8

  • SHA1

    4f120f480442a2525bccd5babee3a69a2128a959

  • SHA256

    4255c39df67a2a762ae4245ad040b1bee62e3b51154446cabf48f7f01cb6fd95

  • SHA512

    c1b7293cb2392d0a9eaa4176bb0d39aa474dcf4f8a091b5bcdb8fc9b98456cf1911cb222ab28afb2693d7318e89f6829e5c3fa5ab62ebe73833f166bccf2746f

  • SSDEEP

    12288:P3bdKBAAppjvKSXXTc6LZbV/ySx4aJLeMUKqbLT2EO:PLpApp+8oOZ5/yXXz2t

Malware Config

Extracted

Family

vidar

Version

11

Botnet

b0c01908675d7347615657c21fb618e6

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

Extracted

Family

vidar

Version

11

Botnet

a669a86f8433a1e88901711c0f772c97

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://possiwreeste.site/api

https://underlinemdsj.site/api

https://chaptermusu.store/api

Signatures

  • Detect Vidar Stealer 21 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 2 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
  • 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 3 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 8 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4255c39df67a2a762ae4245ad040b1bee62e3b51154446cabf48f7f01cb6fd95.exe
    "C:\Users\Admin\AppData\Local\Temp\4255c39df67a2a762ae4245ad040b1bee62e3b51154446cabf48f7f01cb6fd95.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3248
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:3204
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:3736
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          2⤵
            PID:3288
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            2⤵
              PID:1332
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              2⤵
                PID:4256
              • 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:1992
                • C:\ProgramData\KJDGIJECFI.exe
                  "C:\ProgramData\KJDGIJECFI.exe"
                  3⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:1644
                  • 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:936
                • C:\ProgramData\FHJEGIIEGI.exe
                  "C:\ProgramData\FHJEGIIEGI.exe"
                  3⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:4208
                  • 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
                    • Checks processor information in registry
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4604
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FHJEGIIEGIDG" & exit
                  3⤵
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:3064
                  • C:\Windows\SysWOW64\timeout.exe
                    timeout /t 10
                    4⤵
                    • System Location Discovery: System Language Discovery
                    • Delays execution with timeout.exe
                    PID:4252

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\ProgramData\DGCAAAFCBFBA\IJKFCF

              Filesize

              160KB

              MD5

              f310cf1ff562ae14449e0167a3e1fe46

              SHA1

              85c58afa9049467031c6c2b17f5c12ca73bb2788

              SHA256

              e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855

              SHA512

              1196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad

            • C:\ProgramData\FHJEGIIEGI.exe

              Filesize

              404KB

              MD5

              ad0e0451229105c930c40e9ab4ace88b

              SHA1

              13ea9b9049786c5c71cbc28da987b51ca219442d

              SHA256

              86872a1819f9de7920a6f390f7a5ac5e3f838a3bfc5aac08496b971cad78a783

              SHA512

              595da416f69d3e0b768622932bf4e37cf690c8b3a6099321314abfb68ebb66f9c437c1dc1ec13e305af76a5174826c02649748272db5b05b571baabf4f3afcec

            • C:\ProgramData\KJDGIJECFI.exe

              Filesize

              371KB

              MD5

              ef2d9238d30f4857b7ecf50694959c83

              SHA1

              c06bfb85533d2fb2fa7f44d8fd9a58423793d55c

              SHA256

              d26a4f1cc1c1a80477122de0446aa7a669f91c70b34a167f89549ee569eaf53e

              SHA512

              94f281f8b8c88f53acd364488c5cc72549d3d90827c4239a0f7d8c1c81e253b9fa5cd8b26eeb65aaef10b4ca9f264f99ac366c56b052fd8ea91543782e51dc02

            • 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

            • memory/936-108-0x0000000000400000-0x0000000000463000-memory.dmp

              Filesize

              396KB

            • memory/936-106-0x0000000000400000-0x0000000000463000-memory.dmp

              Filesize

              396KB

            • memory/936-101-0x0000000000400000-0x0000000000463000-memory.dmp

              Filesize

              396KB

            • memory/1644-104-0x0000000072B10000-0x00000000732C0000-memory.dmp

              Filesize

              7.7MB

            • memory/1644-103-0x0000000072B10000-0x00000000732C0000-memory.dmp

              Filesize

              7.7MB

            • memory/1644-99-0x0000000072B1E000-0x0000000072B1F000-memory.dmp

              Filesize

              4KB

            • memory/1644-98-0x0000000000090000-0x00000000000F0000-memory.dmp

              Filesize

              384KB

            • memory/1992-32-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-84-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-50-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-49-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-75-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-76-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-83-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-8-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-33-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-3-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-17-0x0000000022510000-0x000000002276F000-memory.dmp

              Filesize

              2.4MB

            • memory/1992-16-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-15-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1992-6-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/3248-11-0x0000000075230000-0x00000000759E0000-memory.dmp

              Filesize

              7.7MB

            • memory/3248-57-0x0000000075230000-0x00000000759E0000-memory.dmp

              Filesize

              7.7MB

            • memory/3248-0-0x000000007523E000-0x000000007523F000-memory.dmp

              Filesize

              4KB

            • memory/3248-1-0x00000000007E0000-0x000000000084A000-memory.dmp

              Filesize

              424KB

            • memory/4208-122-0x0000000000260000-0x00000000002CA000-memory.dmp

              Filesize

              424KB

            • memory/4604-126-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/4604-128-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/4604-124-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/4604-131-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/4604-132-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/4604-134-0x00000000226B0000-0x000000002290F000-memory.dmp

              Filesize

              2.4MB

            • memory/4604-148-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/4604-149-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB