Analysis

  • max time kernel
    100s
  • max time network
    103s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250508-en
  • resource tags

    arch:x64arch:x86image:win11-20250508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26/05/2025, 16:52

General

  • Target
    Endorphin.exe
  • Size 1.2MB
  • Sample250526-vdjncaspx5
  • SHA256 fe76da9c71be103d6ddd199080d732c5562312958a3599a6ee03b4d1cfb52e81
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • lumma

C2
  • https://nercy.live/apzf/api

  • https://narrathfpt.top/tekq

  • https://escczlv.top/bufi

  • https://localixbiw.top/zlpa

  • https://korxddl.top/qidz

  • https://harumseeiw.top/tqmn

  • https://diecam.top/laur/api

  • https://citellcagt.top/gjtu

  • https://bogtkr.top/zhyk/api

Signatures

  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Lumma family
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Endorphin.exe
    "C:\Users\Admin\AppData\Local\Temp\Endorphin.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c copy Receiving.vob Receiving.vob.bat & Receiving.vob.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:5204
      • C:\Windows\SysWOW64\findstr.exe
        findstr /I "opssvc wrsa"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3720
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:904
      • C:\Windows\SysWOW64\findstr.exe
        findstr "bdservicehost SophosHealth AvastUI AVGUI nsWscSvc ekrn"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:436
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c md 722397
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2272
      • C:\Windows\SysWOW64\extrac32.exe
        extrac32 /Y /E Pricing.vob
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1144
      • C:\Windows\SysWOW64\findstr.exe
        findstr /V "MATTERS" Heritage
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5332
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c copy /b ..\Packard.vob + ..\Contractor.vob + ..\Industrial.vob + ..\Netherlands.vob + ..\Icons.vob + ..\Legislation.vob + ..\Transferred.vob + ..\Florists.vob U
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5960
      • C:\Users\Admin\AppData\Local\Temp\722397\Richardson.com
        Richardson.com U
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5028
      • C:\Windows\SysWOW64\choice.exe
        choice /d y /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1940

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Richardson.com

        • Path C:\Users\Admin\AppData\Local\Temp\722397\Richardson.com
        • Size 925KB
        • SHA256 1300262a9d6bb6fcbefc0d299cce194435790e70b9c7b4a651e202e90a32fd49
        • MD5 SHA1 SHA512 SSDEEP

        U

        • Path C:\Users\Admin\AppData\Local\Temp\722397\U
        • Size 543KB
        • SHA256 1bad86b16795cbc8ec07cce0de062fb6dc61a8fecf5ff86c5ac08b650823934f
        • MD5 SHA1 SHA512 SSDEEP

        Bare

        • Path C:\Users\Admin\AppData\Local\Temp\Bare
        • Size 102KB
        • SHA256 29c156f73bd349684047f3378dc5a2a5187eea4bcdd737c6c22c68130c00f801
        • MD5 SHA1 SHA512 SSDEEP

        Blades

        • Path C:\Users\Admin\AppData\Local\Temp\Blades
        • Size 106KB
        • SHA256 0ee09b7877605052432fac83f4dbd29995874f574edbc829d973df8112a1d445
        • MD5 SHA1 SHA512 SSDEEP

        Characteristic

        • Path C:\Users\Admin\AppData\Local\Temp\Characteristic
        • Size 80KB
        • SHA256 d1ff758ad9d8a775803defcf99d3baab99073003d1888715b3b1165defc75d03
        • MD5 SHA1 SHA512 SSDEEP

        Contractor.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Contractor.vob
        • Size 88KB
        • SHA256 466d27b7af4e3dc356f9ede7514cf6c6ff75d11dd1b559e140d4b4ec5ac00d2a
        • MD5 SHA1 SHA512 SSDEEP

        Ethical

        • Path C:\Users\Admin\AppData\Local\Temp\Ethical
        • Size 147KB
        • SHA256 de4401e18347d8a4c9ddda86104e352c82e82ec1d3b5f9cf5fb4f1b8ce2450ce
        • MD5 SHA1 SHA512 SSDEEP

        Eugene

        • Path C:\Users\Admin\AppData\Local\Temp\Eugene
        • Size 65KB
        • SHA256 87e458ddcf1e642a3e552f644e9c5dcea318cba936d619f52838249305f5f972
        • MD5 SHA1 SHA512 SSDEEP

        Florists.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Florists.vob
        • Size 22KB
        • SHA256 face23c18a68ad6949abd6876941d473659b8b350b2176603c4ae94b08e8b518
        • MD5 SHA1 SHA512 SSDEEP

        Heritage

        • Path C:\Users\Admin\AppData\Local\Temp\Heritage
        • Size 2KB
        • SHA256 b56036276e97a0bad2bb36fec645d461dfca7e80182832c5364dcebb8261b4c1
        • MD5 SHA1 SHA512

        Icons.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Icons.vob
        • Size 96KB
        • SHA256 83394b93b64a17b15395ec9975f245c807303465c842c1f772271765613f9ba2
        • MD5 SHA1 SHA512 SSDEEP

        Industrial.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Industrial.vob
        • Size 54KB
        • SHA256 d046876d32b7bbda63035b977b71b06331215feb70be8c66d517e80ce0d64af9
        • MD5 SHA1 SHA512 SSDEEP

        Joke

        • Path C:\Users\Admin\AppData\Local\Temp\Joke
        • Size 67KB
        • SHA256 5775fc079acd7143565526ec06f890db18055de24c83d1034b43ebf2bf212e62
        • MD5 SHA1 SHA512 SSDEEP

        Legislation.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Legislation.vob
        • Size 70KB
        • SHA256 3570b7ee6c23e8db2657cc786ecc1851c8835db6a114ac5c5b2338972aec117c
        • MD5 SHA1 SHA512 SSDEEP

        Mercy

        • Path C:\Users\Admin\AppData\Local\Temp\Mercy
        • Size 105KB
        • SHA256 8d1b747b280492d8b0cf673c67f5a24e6522d202bed820c9dce184d470981930
        • MD5 SHA1 SHA512 SSDEEP

        Netherlands.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Netherlands.vob
        • Size 94KB
        • SHA256 a02e857e635ca884750f622ea4d65db45b8914d56aa415ad30514b0310b02bd6
        • MD5 SHA1 SHA512 SSDEEP

        Packard.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Packard.vob
        • Size 60KB
        • SHA256 297d0e0a0fcacf618146aebb37dfd4285974e9d86db26025679e509bd54eaf5b
        • MD5 SHA1 SHA512 SSDEEP

        Pricing.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Pricing.vob
        • Size 477KB
        • SHA256 833c306384c0719a4c89c6c3237f9447cfcee74ddf5bd2f33faa928c806ef178
        • MD5 SHA1 SHA512 SSDEEP

        Receiving.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Receiving.vob
        • Size 25KB
        • SHA256 150149fd45efb7686cd595db316b1ebc9b7a6654531d37d595d9cd7d42071762
        • MD5 SHA1 SHA512 SSDEEP

        Retired

        • Path C:\Users\Admin\AppData\Local\Temp\Retired
        • Size 62KB
        • SHA256 7ff00a4aa6707987c8469f1c71c3b49614307fce719a88b110c77c4f6b23814f
        • MD5 SHA1 SHA512 SSDEEP

        Sync

        • Path C:\Users\Admin\AppData\Local\Temp\Sync
        • Size 33KB
        • SHA256 03d50c25d6a236d4d33d3955f1def40368b34b7e776266d33d75c7ebd76c6708
        • MD5 SHA1 SHA512 SSDEEP

        Temperatures

        • Path C:\Users\Admin\AppData\Local\Temp\Temperatures
        • Size 55KB
        • SHA256 75bf58887028bad49d48dce9b7753cfcb9ca381773c12c1c6631492fb70be717
        • MD5 SHA1 SHA512 SSDEEP

        Transferred.vob

        • Path C:\Users\Admin\AppData\Local\Temp\Transferred.vob
        • Size 59KB
        • SHA256 8571327e99302470ab71531064db1434e6d3dd2cba669006f88e8d2606e20c91
        • MD5 SHA1 SHA512 SSDEEP

        Would

        • Path C:\Users\Admin\AppData\Local\Temp\Would
        • Size 100KB
        • SHA256 1ba2d37b34e12960b3d1c17c2fe4261df6befd77772096fa909380be1d00fbef
        • MD5 SHA1 SHA512 SSDEEP

        memory/5028-607-0x00000000044B0000-0x0000000004512000-memory.dmp

        memory/5028-608-0x00000000044B0000-0x0000000004512000-memory.dmp

        memory/5028-609-0x00000000044B0000-0x0000000004512000-memory.dmp

        memory/5028-610-0x00000000044B0000-0x0000000004512000-memory.dmp

        memory/5028-611-0x00000000044B0000-0x0000000004512000-memory.dmp