Analysis

  • max time kernel
    94s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 21:07

General

  • Target

    61ffde65177f9cea78164dd99fe7ecfc7ff9f95309f9b9b7d631870faedf6710.exe

  • Size

    404KB

  • MD5

    15e48f59b50e093dd715c721cec58a29

  • SHA1

    9e8a996b0a8a3c78b7a90bca971d8dd015d5885c

  • SHA256

    61ffde65177f9cea78164dd99fe7ecfc7ff9f95309f9b9b7d631870faedf6710

  • SHA512

    681a6c84a0f2bc8f6d5fe0ce8559b77a9844655385222494ebab191090859415fe7aa88f5834362480a71e982e8c1d02cace1d5b0589693b49495d9face5d497

  • SSDEEP

    6144:hWDZTxXwKjzPrI1UEnjGVqpQduF2dupEzn3ZFunIYUNQ6ZRuR0nXjXzDzgSqqeBj:2Jfajqq8ucd6K3ZFunmHZRu0XXD0JjEO

Malware Config

Extracted

Family

vidar

Version

11

Botnet

8a5f3a9817555d8b0b805aaf007d558d

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

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 13 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
  • 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 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 1 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61ffde65177f9cea78164dd99fe7ecfc7ff9f95309f9b9b7d631870faedf6710.exe
    "C:\Users\Admin\AppData\Local\Temp\61ffde65177f9cea78164dd99fe7ecfc7ff9f95309f9b9b7d631870faedf6710.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4196
    • 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:1216
      • C:\ProgramData\IECFBKFHCA.exe
        "C:\ProgramData\IECFBKFHCA.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4876
        • 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:3876
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 236
          4⤵
          • Program crash
          PID:1496
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DGHIDHCAAKEC" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1288
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:3984
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4876 -ip 4876
    1⤵
      PID:4532

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\IECFBKFHCA.exe

      Filesize

      518KB

      MD5

      efbfec97a10f612bb7d1c528f03ece1e

      SHA1

      a98bca7ce107d390e8dd5a6f2822ccd34378f8c8

      SHA256

      3642e58272247143e3d60ae51738f4bd89fe52e41237f9ceaff0642d482d85e3

      SHA512

      33fc075adf327c4fab93ed1ea0206e8e22aa452e395392c08e0183e7a3b59f6da097a11c7e7a9d661a9f107d39f557ab84bfc84ef9048b97bee01fd50526d2d2

    • 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/1216-48-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-3-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-82-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-13-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-14-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-16-0x0000000022100000-0x000000002235F000-memory.dmp

      Filesize

      2.4MB

    • memory/1216-30-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-31-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-47-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-81-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-6-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-8-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-72-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/1216-73-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3876-97-0x0000000000400000-0x0000000000463000-memory.dmp

      Filesize

      396KB

    • memory/3876-99-0x0000000000400000-0x0000000000463000-memory.dmp

      Filesize

      396KB

    • memory/3876-100-0x0000000000400000-0x0000000000463000-memory.dmp

      Filesize

      396KB

    • memory/4196-80-0x0000000074ED0000-0x0000000075680000-memory.dmp

      Filesize

      7.7MB

    • memory/4196-0-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

      Filesize

      4KB

    • memory/4196-11-0x0000000074ED0000-0x0000000075680000-memory.dmp

      Filesize

      7.7MB

    • memory/4196-1-0x0000000000210000-0x000000000027A000-memory.dmp

      Filesize

      424KB

    • memory/4876-96-0x0000000000180000-0x0000000000181000-memory.dmp

      Filesize

      4KB