Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/02/2025, 15:54

General

  • Target
    Setup-Latest.exe
  • Size 1.4MB
  • Sample250214-tca45sspdm
  • SHA256 721f6073f9ec13d9a1b7cff7b7cfab342ec6fd5ebc1a95c006ae11198e8abfc9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • lumma

C2
  • https://zengardxen.cyou/api

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Drops file in Windows directory 4 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 15 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup-Latest.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup-Latest.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4052
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c expand Wide.mp4 Wide.mp4.bat & Wide.mp4.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\SysWOW64\expand.exe
        expand Wide.mp4 Wide.mp4.bat
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1376
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4492
      • C:\Windows\SysWOW64\findstr.exe
        findstr /I "opssvc wrsa"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4896
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3992
      • C:\Windows\SysWOW64\findstr.exe
        findstr "AvastUI AVGUI bdservicehost nsWscSvc ekrn SophosHealth"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4156
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c md 562639
        3⤵
        • System Location Discovery: System Language Discovery
        PID:864
      • C:\Windows\SysWOW64\extrac32.exe
        extrac32 /Y /E Always.mp4
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2368
      • C:\Windows\SysWOW64\findstr.exe
        findstr /V "Yang" Labor
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4992
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c copy /b 562639\Wages.com + Uniform + Textbooks + Exhibits + Accountability + Fails + Pavilion + Suggestions + Decorating + Volunteers 562639\Wages.com
        3⤵
        • System Location Discovery: System Language Discovery
        PID:396
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c copy /b ..\Strikes.mp4 + ..\Darkness.mp4 + ..\Oaks.mp4 + ..\Fares.mp4 + ..\Funding.mp4 + ..\Complimentary.mp4 + ..\Relate.mp4 G
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4528
      • C:\Users\Admin\AppData\Local\Temp\562639\Wages.com
        Wages.com G
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3780
      • C:\Windows\SysWOW64\choice.exe
        choice /d y /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4700
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMyMzYiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDI1MTE0ODAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTUzNjgxMjgwIi8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:2336

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        G

        • Path C:\Users\Admin\AppData\Local\Temp\562639\G
        • Size 517KB
        • SHA256 21ee5e1ba7e6cbf8b183a93e4cca1ea9266c5cf03a24f4d47d5f5682d90849f4
        • MD5 SHA1 SHA512 SSDEEP

        Wages.com

        • Path C:\Users\Admin\AppData\Local\Temp\562639\Wages.com
        • Size 2KB
        • SHA256 886382bc1ad4b358bfe815fe25dcc0f93bf53ee523e3bdd2720084ba5b5ad7e6
        • MD5 SHA1 SHA512

        Wages.com

        • Path C:\Users\Admin\AppData\Local\Temp\562639\Wages.com
        • Size 925KB
        • SHA256 1300262a9d6bb6fcbefc0d299cce194435790e70b9c7b4a651e202e90a32fd49
        • MD5 SHA1 SHA512 SSDEEP

        Accountability

        • Path C:\Users\Admin\AppData\Local\Temp\Accountability
        • Size 130KB
        • SHA256 7dcff8d7a4b6cb306dc97f5f7db57a36e56e13a1cfc17d3ab9836e9b5785ca59
        • MD5 SHA1 SHA512 SSDEEP

        Always.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\Always.mp4
        • Size 478KB
        • SHA256 a38ef22b27199ffe04dcd923df199c475ab63e2b31943ae72f3a37f6161349c1
        • MD5 SHA1 SHA512 SSDEEP

        Complimentary.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\Complimentary.mp4
        • Size 50KB
        • SHA256 f025d7132a2c77bd9c87c3707fef4ab64cc162df67b6727432c9831bdf11bba9
        • MD5 SHA1 SHA512 SSDEEP

        Darkness.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\Darkness.mp4
        • Size 77KB
        • SHA256 b4337e189ed65c122965008a94764c34fc61ad4796f62c3a407bb758d50fb482
        • MD5 SHA1 SHA512 SSDEEP

        Decorating

        • Path C:\Users\Admin\AppData\Local\Temp\Decorating
        • Size 127KB
        • SHA256 0e93c1bb7974b0786d02f13fe1639c6e6ec7272f8621ac48bd06a776fa89bc9b
        • MD5 SHA1 SHA512 SSDEEP

        Exhibits

        • Path C:\Users\Admin\AppData\Local\Temp\Exhibits
        • Size 50KB
        • SHA256 711a009fc9914b08d16b79013fa4e70a3de2a50b83388b89a138ab2c54e0e62c
        • MD5 SHA1 SHA512 SSDEEP

        Fails

        • Path C:\Users\Admin\AppData\Local\Temp\Fails
        • Size 131KB
        • SHA256 285566e938aa29aa79b3f4091e00241c9b727c087f845782a062290d6d433556
        • MD5 SHA1 SHA512 SSDEEP

        Fares.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\Fares.mp4
        • Size 87KB
        • SHA256 0f27ee47c58241bc7c6d5a1b2f7f1fe731236470f01e09cf2bd92368dd4a25ff
        • MD5 SHA1 SHA512 SSDEEP

        Funding.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\Funding.mp4
        • Size 78KB
        • SHA256 7b43310d8618c20e573df349732318096a3ce767e961291063885b1fcd46f09a
        • MD5 SHA1 SHA512 SSDEEP

        Labor

        • Path C:\Users\Admin\AppData\Local\Temp\Labor
        • Size 2KB
        • SHA256 2a00e6652dd2c4b5be810fc60be8da1d6a75443c98387ff9a23c42fb7013e894
        • MD5 SHA1 SHA512

        Oaks.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\Oaks.mp4
        • Size 79KB
        • SHA256 31ef6bdde2159cf40ba21dc10c0a24918fc2a93808343fb2b55679558477718f
        • MD5 SHA1 SHA512 SSDEEP

        Pavilion

        • Path C:\Users\Admin\AppData\Local\Temp\Pavilion
        • Size 100KB
        • SHA256 1fe97df39faa189ec1b9106e2745590adc28b4d53a69e1dcf52d163913114877
        • MD5 SHA1 SHA512 SSDEEP

        Relate.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\Relate.mp4
        • Size 57KB
        • SHA256 97992cc1ebb37ae53971ad56e234e8157cca8d93c69497747c9fb77eaae8e050
        • MD5 SHA1 SHA512 SSDEEP

        Strikes.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\Strikes.mp4
        • Size 89KB
        • SHA256 fdeecbf6166f5ceff982c7a4131589ca3af7f71f8b5c4f4babfaa53b973d9edf
        • MD5 SHA1 SHA512 SSDEEP

        Suggestions

        • Path C:\Users\Admin\AppData\Local\Temp\Suggestions
        • Size 101KB
        • SHA256 d56ee71b68b9da84bee2d64a83f0d3c1dd80b8e27d9bcc240f068dfbb24425e2
        • MD5 SHA1 SHA512 SSDEEP

        Textbooks

        • Path C:\Users\Admin\AppData\Local\Temp\Textbooks
        • Size 95KB
        • SHA256 4cb81dbc3c21bc612b3e70bbcc515e4b99f7a82b8c39fbec2315d430b30fa53c
        • MD5 SHA1 SHA512 SSDEEP

        Uniform

        • Path C:\Users\Admin\AppData\Local\Temp\Uniform
        • Size 129KB
        • SHA256 e7ede2194b1c1c501a5d61f2365e42e8a9f186b036a639163165bf6737cd73b1
        • MD5 SHA1 SHA512 SSDEEP

        Volunteers

        • Path C:\Users\Admin\AppData\Local\Temp\Volunteers
        • Size 59KB
        • SHA256 7e530d5163218b0ca02450150218a0f24c6f8179dfbd31b58121604115ad8362
        • MD5 SHA1 SHA512 SSDEEP

        wide.mp4

        • Path C:\Users\Admin\AppData\Local\Temp\wide.mp4
        • Size 14KB
        • SHA256 f9dffd2a81287e0c2cb1bb77f33e7000bfd875f6adc796ee9e1bfbc6b6b9f083
        • MD5 SHA1 SHA512 SSDEEP

        memory/3780-69-0x0000000004A50000-0x0000000004AB0000-memory.dmp

        memory/3780-70-0x0000000004A50000-0x0000000004AB0000-memory.dmp

        memory/3780-73-0x0000000004A50000-0x0000000004AB0000-memory.dmp

        memory/3780-72-0x0000000004A50000-0x0000000004AB0000-memory.dmp

        memory/3780-71-0x0000000004A50000-0x0000000004AB0000-memory.dmp