Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-10-2024 01:13

General

  • Target

    355efad50619f657c66449945fbc3cfd00a1b817d836be8eb3234e81be9f1a8a.exe

  • Size

    550KB

  • MD5

    fe5aab98c1d4e13b92e5a73b5c2a448b

  • SHA1

    2260938e705f3a1d1b15196459de0fcf054bf10b

  • SHA256

    355efad50619f657c66449945fbc3cfd00a1b817d836be8eb3234e81be9f1a8a

  • SHA512

    a7a1eb0a4d5113158c758c0903643e2bfe2e2e7a62c043c84934249d54d81fa738d612c6487ee074d1f1c62865a2de81027f0a9de03462bbfa8f66cc47b5ef2c

  • SSDEEP

    6144:W9cIQA3qOCwyTZqhQrwcMwrRB8zZvblMnlcvLnFYDqb3bEoZBiJaJumkd9H9cbK5:zIQA6LUQlMkBwtBMlcaG3yzHebKJP

Malware Config

Extracted

Family

vidar

C2

http://proxy.johnmccrea.com/

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

lumma

C2

https://spirittunek.store/api

https://mobbipenju.store/api

https://eaglepawnoy.store/api

https://dissapoiznw.store/api

https://studennotediw.store/api

https://bathdoomgaz.store/api

Signatures

  • Detect Vidar Stealer 15 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 2 IoCs
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\355efad50619f657c66449945fbc3cfd00a1b817d836be8eb3234e81be9f1a8a.exe
    "C:\Users\Admin\AppData\Local\Temp\355efad50619f657c66449945fbc3cfd00a1b817d836be8eb3234e81be9f1a8a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3144
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:1488
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5048
        • C:\ProgramData\FBKEHJEGCF.exe
          "C:\ProgramData\FBKEHJEGCF.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1888
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1456
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 256
            4⤵
            • Program crash
            PID:3420
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GCAFCAFHJJDB" & exit
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2680
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:1656
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3144 -s 260
        2⤵
        • Program crash
        PID:3656
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3144 -ip 3144
      1⤵
        PID:2156
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1888 -ip 1888
        1⤵
          PID:1500

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\FBKEHJEGCF.exe

          Filesize

          518KB

          MD5

          f2e06e0c518fc12474c24fc1107bdc80

          SHA1

          ec66a54fa727f65ed8fabc40de61816a4081df43

          SHA256

          ef2048a669f1bf5ddf52eaf0f3950f5fa6c8eabc185eb8f6fa1a4af7731e6442

          SHA512

          b096a73d9479cb72d0c87bdbabd259771aefa7ede0f237bc4af6386027663648f72a55c1ceb5db6340e4f8275cf5c042b007d6065af55df273f25d8dccbaab98

        • 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/1456-99-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1456-98-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1456-96-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1888-95-0x0000000000C20000-0x0000000000C21000-memory.dmp

          Filesize

          4KB

        • memory/3144-0-0x00000000006F8000-0x00000000006FA000-memory.dmp

          Filesize

          8KB

        • memory/5048-100-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-79-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-71-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-6-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-3-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-43-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-72-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-42-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-80-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-81-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-1-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-26-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-25-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-10-0x000000001FB80000-0x000000001FDDF000-memory.dmp

          Filesize

          2.4MB

        • memory/5048-8-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/5048-7-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB