Analysis

  • max time kernel
    96s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-09-2024 07:27

General

  • Target

    43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94.exe

  • Size

    216KB

  • MD5

    242293154c0caabd9953b0b1804926a7

  • SHA1

    8fabbf702ded34e84da34ec5d9255a23fef63939

  • SHA256

    43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94

  • SHA512

    d3cd5c5d56f17ae088d315de8d2cba8eaa3cd6d8f6b38368c28c9c6cf98532992dc35192ad99f9823e2eb0a3e5c3bd0c266c27bed54352d81c6190165d7ade7d

  • SSDEEP

    6144:U/ipLSItOvhdzG9NznVfi6DN567zTMMEO:8iBS0On+V7DN567n7EO

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Extracted

Family

lumma

C2

https://questionmwq.shop/api

https://chickerkuso.shop/api

https://achievenmtynwjq.shop/api

https://puredoffustow.shop/api

https://opponnentduei.shop/api

https://metallygaricwo.shop/api

https://milldymarskwom.shop/api

https://quotamkdsdqo.shop/api

https://carrtychaintnyw.shop/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.

  • 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 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 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 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.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94.exe
    "C:\Users\Admin\AppData\Local\Temp\43e7575547a95e5c4d7b7ad2915c830f252ab206a0baf9691206200a644e7b94.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:5496
      • 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:668
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminGIJKKKFCFH.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:5824
          • C:\Users\AdminGIJKKKFCFH.exe
            "C:\Users\AdminGIJKKKFCFH.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:808
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
                PID:4692
              • 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:3008
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminKEHDHIDAEH.exe"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4880
            • C:\Users\AdminKEHDHIDAEH.exe
              "C:\Users\AdminKEHDHIDAEH.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4496
              • 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:1812

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      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\AdminGIJKKKFCFH.exe

        Filesize

        354KB

        MD5

        384a847ad2833788fa253433fd2eea8d

        SHA1

        1984d8788fe40bd95a90d7d4e9dea6c4e4ff6201

        SHA256

        de30491736617249b3e80fc9436ecf0f7675b3c3014509398c3db7298f93336a

        SHA512

        bcdbd44837629d8881c29a7c7f6a2d4e98b52fbc49952bad2c89340a1dee18fac9987aaa8a3d91905a1f88a216c0e2501201a8665f3df7d5f627ff71a2418aac

      • C:\Users\AdminKEHDHIDAEH.exe

        Filesize

        292KB

        MD5

        4a8a0ccfecc930091116324c79c1006e

        SHA1

        d790befcbc31a4befafeaf08879e15f99633b2a1

        SHA256

        146b7006b041d25b6846c797234f38387ec4b141c4a7e4f100d0e6d2eda29088

        SHA512

        ffef04766c2a9f9d038ccf6156ac7f03a0e0809adaf245a1347e5ece6ad31f9b37f283d71d34c031350456f30036078d5a3e97fa563bf6af6a8fcf6edeeb25d2

      • memory/668-8-0x0000000000400000-0x0000000000643000-memory.dmp

        Filesize

        2.3MB

      • memory/668-10-0x0000000000400000-0x0000000000643000-memory.dmp

        Filesize

        2.3MB

      • memory/668-11-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/668-95-0x0000000000400000-0x0000000000643000-memory.dmp

        Filesize

        2.3MB

      • memory/668-4-0x0000000000400000-0x0000000000643000-memory.dmp

        Filesize

        2.3MB

      • memory/808-90-0x00000000722CE000-0x00000000722CF000-memory.dmp

        Filesize

        4KB

      • memory/808-106-0x00000000722C0000-0x0000000072A70000-memory.dmp

        Filesize

        7.7MB

      • memory/808-94-0x00000000722C0000-0x0000000072A70000-memory.dmp

        Filesize

        7.7MB

      • memory/808-89-0x00000000007C0000-0x000000000081A000-memory.dmp

        Filesize

        360KB

      • memory/1812-128-0x0000000022310000-0x000000002256F000-memory.dmp

        Filesize

        2.4MB

      • memory/1812-142-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/1812-108-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/1812-143-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/1812-126-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/1812-112-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/1812-127-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/1812-110-0x0000000000400000-0x0000000000657000-memory.dmp

        Filesize

        2.3MB

      • memory/3008-105-0x0000000000400000-0x000000000045D000-memory.dmp

        Filesize

        372KB

      • memory/3008-104-0x0000000000400000-0x000000000045D000-memory.dmp

        Filesize

        372KB

      • memory/3008-101-0x0000000000400000-0x000000000045D000-memory.dmp

        Filesize

        372KB

      • memory/4496-99-0x0000000000630000-0x000000000067A000-memory.dmp

        Filesize

        296KB

      • memory/5040-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

        Filesize

        4KB

      • memory/5040-9-0x00000000746D0000-0x0000000074E80000-memory.dmp

        Filesize

        7.7MB

      • memory/5040-6-0x00000000746D0000-0x0000000074E80000-memory.dmp

        Filesize

        7.7MB

      • memory/5040-2-0x00000000746D0000-0x0000000074E80000-memory.dmp

        Filesize

        7.7MB

      • memory/5040-1-0x0000000000130000-0x0000000000168000-memory.dmp

        Filesize

        224KB