Analysis

  • max time kernel
    583s
  • max time network
    602s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    17-11-2024 20:50

General

  • Target

    SwinDevline.exe

  • Size

    10.0MB

  • MD5

    5a677cba4cca1c95bff07c16a081f39f

  • SHA1

    3c306484f1e9896485f6653b3e86aec7236f507d

  • SHA256

    d88531b8ba4bb1392881fa983c6dd0dbee02285eb15584797b6005fb2971bd6e

  • SHA512

    3d64ee1b290faa24595282a817d6ff98389ba15986e6416cdd38052f1afd98957928157d809dc675c3148bf4c48cdf1fed497584dfa915bb8e977e438421dfce

  • SSDEEP

    12288:nIK4KNZCD1yOzO2NLco2RDyUZ3bKl/Cx:IwDCD1Lvwo2R5Z3u

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1300085879343153233/-ddJjNn1i9vwgELyTWzNUqmaTWlQC71HdSwW26fQ6Ghxxfakhp0E3VrmKBTPgrJlhUBm

Extracted

Family

xworm

C2

court-requires.gl.at.ply.gg:47045

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    AggentWidows.exe

Signatures

  • Detect Umbral payload 2 IoCs
  • Detect Xworm Payload 2 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 8 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops file in Drivers directory 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 12 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 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 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SwinDevline.exe
    "C:\Users\Admin\AppData\Local\Temp\SwinDevline.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5364
    • C:\Users\Admin\AppData\Local\Temp\SwinCheker Free Edition.exe
      "C:\Users\Admin\AppData\Local\Temp\SwinCheker Free Edition.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2864
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\SwinCheker Free Edition.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1740
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SwinCheker Free Edition.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5056
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AggentWidows.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:5964
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'AggentWidows.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        PID:2528
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "AggentWidows" /tr "C:\Users\Admin\AggentWidows.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5860
    • C:\Users\Admin\AppData\Local\Temp\Libares.exe
      "C:\Users\Admin\AppData\Local\Temp\Libares.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5344
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1016
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Libares.exe"
        3⤵
        • Views/modifies file attributes
        PID:6112
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Libares.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4540
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5228
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4340
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2964
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:5668
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:1448
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:5064
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:5212
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:4964
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Libares.exe" && pause
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:2800
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:1792
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:5436
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:2552
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:4892
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:3668
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:1048
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:1500
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:4284
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:2664
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:5792
      • C:\Users\Admin\AggentWidows.exe
        C:\Users\Admin\AggentWidows.exe
        1⤵
        • Executes dropped EXE
        PID:760

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\AggentWidows.exe.log

        Filesize

        654B

        MD5

        2cbbb74b7da1f720b48ed31085cbd5b8

        SHA1

        79caa9a3ea8abe1b9c4326c3633da64a5f724964

        SHA256

        e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3

        SHA512

        ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        627073ee3ca9676911bee35548eff2b8

        SHA1

        4c4b68c65e2cab9864b51167d710aa29ebdcff2e

        SHA256

        85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

        SHA512

        3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        f0dd083ebd5733f3e84586af4e1b5eff

        SHA1

        b8a5bdc6a65f39d29f02af9057770cd03bd80dd3

        SHA256

        1b115ae45fdf1295df8b3d3074bd6c59991b2ad6e2e3aff9a2a93ad9cf9cafdf

        SHA512

        aa0f16da2af390c0a2bb37a3935258306132c342358294c10f2685d3c8881febb4da6c8a12d324a8396e6dc763301ccb6114edd5c12a02960b893ab0b38f2d59

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        21017c68eaf9461301de459f4f07e888

        SHA1

        41ff30fc8446508d4c3407c79e798cf6eaa5bb73

        SHA256

        03b321e48ff3328d9c230308914961fe110c4c7bc96c0a85a296745437bcb888

        SHA512

        956990c11c6c1baa3665ef7ef23ef6073e0a7fcff77a93b5e605a83ff1e60b916d80d45dafb06977aed90868a273569a865cf2c623e295b5157bfff0fb2be35d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        4093e5ab3812960039eba1a814c2ffb0

        SHA1

        b5e4a98a80be72fccd3cc910e93113d2febef298

        SHA256

        c0794e2b7036ce5612446a8b15e0c8387773bbc921f63cf8849f8a1f4ef3878c

        SHA512

        f3555b45aa1a1dd5214716dc81a05905c4ecd5a3e1276d35e08c65623ab1d14d469b3b576a5d9638264c1222d73889d2cc1ee43fb579d9ca3fcddd9f557cac7b

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        64B

        MD5

        052b68d98977d4f52cc6afabfa743b06

        SHA1

        63b671a71cc5ec6b76218b0094784a5e21e08e7f

        SHA256

        199ac916bb90b9b2107eb749d5c65411c387c7d59f0a2d19d17674983287116a

        SHA512

        e20517e1d3b755c17c617f9cbab3de19a4b29fc16a3422bbde30530130c2865173b85ee24e336b20c4706740250bc062f789d0c6989d4ed15c6f8527033693af

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        1a9fa92a4f2e2ec9e244d43a6a4f8fb9

        SHA1

        9910190edfaccece1dfcc1d92e357772f5dae8f7

        SHA256

        0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

        SHA512

        5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        948B

        MD5

        9e189a46e645ff30b93ea3d4c1386a39

        SHA1

        16b4fe116d8d76414cc68c929524020739e8ad87

        SHA256

        a0f052db1cd54d1a2e1c6c140063d65cb9793ed59865147275d2a1ee10166076

        SHA512

        306992440bbd1b934d07d3547372a0890b6e2f87308e5a4ac3e8c4c43abcd4cb7826508cf6a61bc2f167af6e311906485dda490808558a2cd4c72a6676c00994

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        7332074ae2b01262736b6fbd9e100dac

        SHA1

        22f992165065107cc9417fa4117240d84414a13c

        SHA256

        baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

        SHA512

        4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        6ca67a1a64ff4dd3f09a2393fccba8fa

        SHA1

        906350e7db31efc71679bbdbbcf1133aa2d31c1d

        SHA256

        6bc103c2e75b013034c77bb204ccbe43c365e9b6cb1697b9b5a1e20dda43427e

        SHA512

        4d1d3d52107b2eb2faf6918d0559a08acbe89b6a889f6300c55742d91f596a6764c637fc386c80ecbc434d0496ee83f243054c66b9eeb7adef4b2093e932b066

      • C:\Users\Admin\AppData\Local\Temp\Libares.exe

        Filesize

        229KB

        MD5

        93ee2fba5df7c5b5732c4fb9bfe3fd4f

        SHA1

        9a30f1c4c99924ba8d306f7c3276cb64c331c7ab

        SHA256

        761d2bd3cc53b18deabb2806400d426fe710cf4eb89f0762f60f5415ce79ebc5

        SHA512

        b8de5114cd703fc5740b5690313d1dd76449af67e1393fc05fc0ca697f27b08d9a7c622d225aa5e2d1197c723ff1aef7fc451a5af78332656d9daeb60a3ff6e2

      • C:\Users\Admin\AppData\Local\Temp\SwinCheker Free Edition.exe

        Filesize

        67KB

        MD5

        6fdd08fe157c61f2728fcaa2e5d52fef

        SHA1

        09dcb5885833f6f7fccd24f9d87854017b5c12d5

        SHA256

        9ce14906917159cbf43abf05ac36308dfbc25208d2c15e88644822ead8c31f8c

        SHA512

        a51e88336a3df0b86252967ef108fb564075b6676aea47073187663087b2021654aa7184590b87b0c4d1a6eefb2cd1f4ea0fcfc964a17197ca9729d04e24f12f

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hm40mvgh.iao.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/2864-26-0x00000000006D0000-0x00000000006E8000-memory.dmp

        Filesize

        96KB

      • memory/2864-157-0x00007FFB24D70000-0x00007FFB25832000-memory.dmp

        Filesize

        10.8MB

      • memory/2864-24-0x00007FFB24D73000-0x00007FFB24D75000-memory.dmp

        Filesize

        8KB

      • memory/2864-77-0x00007FFB24D70000-0x00007FFB25832000-memory.dmp

        Filesize

        10.8MB

      • memory/4540-34-0x000001C9E4280000-0x000001C9E42A2000-memory.dmp

        Filesize

        136KB

      • memory/5344-55-0x0000023D930B0000-0x0000023D930CE000-memory.dmp

        Filesize

        120KB

      • memory/5344-100-0x0000023D93050000-0x0000023D9305A000-memory.dmp

        Filesize

        40KB

      • memory/5344-27-0x00007FFB24D70000-0x00007FFB25832000-memory.dmp

        Filesize

        10.8MB

      • memory/5344-101-0x0000023D930D0000-0x0000023D930E2000-memory.dmp

        Filesize

        72KB

      • memory/5344-25-0x0000023D91220000-0x0000023D91260000-memory.dmp

        Filesize

        256KB

      • memory/5344-54-0x0000023D932B0000-0x0000023D93300000-memory.dmp

        Filesize

        320KB

      • memory/5344-151-0x00007FFB24D70000-0x00007FFB25832000-memory.dmp

        Filesize

        10.8MB

      • memory/5344-156-0x00007FFB24D70000-0x00007FFB25832000-memory.dmp

        Filesize

        10.8MB

      • memory/5344-53-0x0000023DABAD0000-0x0000023DABB46000-memory.dmp

        Filesize

        472KB

      • memory/5344-28-0x00007FFB24D70000-0x00007FFB25832000-memory.dmp

        Filesize

        10.8MB