Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-09-2024 16:40

General

  • Target

    file.exe

  • Size

    413KB

  • MD5

    0656946b783a6df8ff57c45846e49de1

  • SHA1

    5e5857484282f4e4d636d6558014859242b6a8f7

  • SHA256

    eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a

  • SHA512

    a409d30407773f4bb8bb087352e835765460fd3557a6570e1159b01988dd1601d15a7472958b8d41509da896ec365b7b61964413d0846763a8faff511458106d

  • SSDEEP

    12288:tUxpOKa8zz8WB4fZLtjEJNThSymzi0hMQwXFqEO:6Jzz8WUZLtjS5hHQi0TwXUt

Malware Config

Extracted

Family

vidar

Version

11

Botnet

d80be45a1eb6454ca916f92c36ebf67d

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://appleboltelwk.shop/api

https://surveriysiop.shop/api

https://captainynfanw.shop/api

https://tearrybyiwo.shop/api

https://tendencerangej.shop/api

https://fossillargeiw.shop/api

https://coursedonnyre.shop/api

https://strappystyio.shop/api

https://steppyplantnw.shop/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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 2 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
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5104
    • 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:2792
      • C:\ProgramData\IDBKKKKKFB.exe
        "C:\ProgramData\IDBKKKKKFB.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4312
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:4072
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:4608
            • 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:1212
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CAAEBFHJJDAA" & exit
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4540
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:4504

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\IDBKKKKKFB.exe

        Filesize

        381KB

        MD5

        f5a1956973dce107d4c0b6267ce88870

        SHA1

        79a19513d7c9cff939f2881c4172a05dbaef735b

        SHA256

        7b794c5bdb820791f0359da90a9a4f258412b8feef9c6e6a0411f6aead9d3a04

        SHA512

        f42180c75c0ae8dc083c6fff98a66c0d875fadb400d7945816ea330a54777632a3a7752d3e78b90e45f58ed3d04d6708b1dcea51d82711356e6d14e405a7c579

      • 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/1212-107-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/1212-110-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/1212-114-0x0000000000400000-0x0000000000464000-memory.dmp

        Filesize

        400KB

      • memory/2792-13-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-79-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-20-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-21-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-22-0x00000000227F0000-0x0000000022A4F000-memory.dmp

        Filesize

        2.4MB

      • memory/2792-37-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-38-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-54-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-55-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-11-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-6-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-88-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-80-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2792-87-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/4312-102-0x0000000071E7E000-0x0000000071E7F000-memory.dmp

        Filesize

        4KB

      • memory/4312-103-0x0000000000E60000-0x0000000000EC0000-memory.dmp

        Filesize

        384KB

      • memory/4312-104-0x0000000071E70000-0x0000000072620000-memory.dmp

        Filesize

        7.7MB

      • memory/4312-113-0x0000000071E70000-0x0000000072620000-memory.dmp

        Filesize

        7.7MB

      • memory/4312-115-0x0000000071E70000-0x0000000072620000-memory.dmp

        Filesize

        7.7MB

      • memory/5104-0-0x000000007457E000-0x000000007457F000-memory.dmp

        Filesize

        4KB

      • memory/5104-9-0x0000000074570000-0x0000000074D20000-memory.dmp

        Filesize

        7.7MB

      • memory/5104-5-0x0000000074570000-0x0000000074D20000-memory.dmp

        Filesize

        7.7MB

      • memory/5104-2-0x0000000074570000-0x0000000074D20000-memory.dmp

        Filesize

        7.7MB

      • memory/5104-1-0x0000000000BA0000-0x0000000000C08000-memory.dmp

        Filesize

        416KB