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Analysis

  • max time kernel
    253s
  • max time network
    255s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08/08/2024, 10:22

Errors

Reason
Machine shutdown

General

  • Target

    XClient.exe

  • Size

    283KB

  • MD5

    94d7570a4d6becf9ccccac918fc7a525

  • SHA1

    8e9fa909a7f38b1f4481ee880340c96aa03a9a84

  • SHA256

    6639082eb40e90f37ad92b3616c2040937355c5196ba241340cb1e8719d098df

  • SHA512

    d97b0b2c758e3288ffbacf1111b621f0530ad152830b17795a8734e4d30cd85c5578d94983f6668222028e45095582a05a41033df0bf1061fb18124fe7fa8e7f

  • SSDEEP

    3072:c43Cklb4wOyopUd87kREhYyZxbHrR6Y7zjokEtNaaayMakxiJ+UZeQnjm9sjSwkm:bpbVoA8oKhsrx8iJZeQiWsVCA2aAN0F

Malware Config

Extracted

Family

xworm

C2

hard-tyler.gl.at.ply.gg:27490

Attributes
  • Install_directory

    %Temp%

  • install_file

    systemprocess.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • 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
  • Adds Run key to start application 2 TTPs 1 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.

  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 15 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious behavior: MapViewOfSection 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4880
    • 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:1352
    • 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:3100
    • 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\systemprocess.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3356
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'systemprocess.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      PID:1736
    • C:\Windows\SYSTEM32\shutdown.exe
      shutdown.exe /f /s /t 0
      2⤵
        PID:5032
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
      1⤵
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1572
    • C:\Windows\system32\browser_broker.exe
      C:\Windows\system32\browser_broker.exe -Embedding
      1⤵
      • Modifies Internet Explorer settings
      PID:2852
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4072
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:664
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Drops file in Windows directory
      • Modifies registry class
      PID:1736
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      PID:2356
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      PID:2420
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      PID:304
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x0 /state0:0xa3aff055 /state1:0x41c64e6d
      1⤵
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:2912
    • C:\Windows\system32\browser_broker.exe
      C:\Windows\system32\browser_broker.exe -Embedding
      1⤵
        PID:872
      • C:\Windows\system32\browser_broker.exe
        C:\Windows\system32\browser_broker.exe -Embedding
        1⤵
          PID:3212

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          3KB

          MD5

          ad5cd538ca58cb28ede39c108acb5785

          SHA1

          1ae910026f3dbe90ed025e9e96ead2b5399be877

          SHA256

          c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033

          SHA512

          c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XCFODRP5\edgecompatviewlist[1].xml

          Filesize

          74KB

          MD5

          d4fc49dc14f63895d997fa4940f24378

          SHA1

          3efb1437a7c5e46034147cbbc8db017c69d02c31

          SHA256

          853d2f4eb81c9fdcea2ee079f6faf98214b111b77cdf68709b38989d123890f1

          SHA512

          cc60d79b4afe5007634ac21dc4bc92081880be4c0d798a1735b63b27e936c02f399964f744dc73711987f01e8a1064b02a4867dd6cac27538e5fbe275cc61e0a

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

          Filesize

          1KB

          MD5

          8e354016fdae26f630a80087e39d89ab

          SHA1

          4ffedb7d4f50f803cfef4555fc3c12e529327649

          SHA256

          8672b635caf4876c0b4a80e690de4aa28853a35284642f940fd5f80d7e56dfd8

          SHA512

          cd8d2932c4fad111c15f7eda8a3740800cb46881f83bea078b2a93143b16f3cb4bc3c42f0a1939be42578eb490346a68a166a43325c223ea1031575b48d3bb57

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

          Filesize

          1KB

          MD5

          4b086401bdd2dc4cb2ea23fdc4c58123

          SHA1

          e5e6f6c8b692a8c8037896344b27e8c22c12c4f0

          SHA256

          6b995f878df1e663e5c0bf515554ad6969818eb4885f7d56399e80c0ff9b391e

          SHA512

          1eb4ce2c46bd7712dab1e104923c04c7d5719b40d61edc9a02c32c437728a2baded500ce53cc0e12a25b47bb6fa253aa17684cf6b5c64bed2f37532b45519e8f

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

          Filesize

          1KB

          MD5

          2c2b940988d1b52ea721fe23d4219f59

          SHA1

          6cecbe6cf36fde2729c81903ff92b8bd46f5c50d

          SHA256

          74056737a14b44ae138b3f13fcc45f86b311bf47f6bbe8486a4185c4b720c450

          SHA512

          31ba2532317473b532711ebb04ec7b6bb067fe8fc99dcd2dc9cc500068c169bfc59e605aa71922aef345c17805cba536434e2e525f2727da85b1fcaff085a3a2

        • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\#!001\MicrosoftEdge\Cache\K0E1W6HH\crypto-js.min[1].js

          Filesize

          46KB

          MD5

          cf3402d7483b127ded4069d651ea4a22

          SHA1

          bde186152457cacf9c35477b5bdda5bcb56b1f45

          SHA256

          eab5d90a71736f267af39fdf32caa8c71673fd06703279b01e0f92b0d7be0bfc

          SHA512

          9ce42ebc3f672a2aefc4376f43d38ca9ed9d81aa5b3c1eef60032bcc98a1c399be68d71fd1d5f9de6e98c4ce0b800f6ef1ef5e83d417fbffa63eef2408da55d8

        • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\Cache\2V53MIUH\guns-solid[1].svg

          Filesize

          732B

          MD5

          48817a08ba7e68c843c044f272f9f6f7

          SHA1

          ac3a03887ef169327cca4fed5632453611da39a8

          SHA256

          e07f17964bb0c49b975f385542abb2f6c55e67b3b0d3b77c4d743fe3416553c4

          SHA512

          a3d4296d8a408af9e412fdb60554f63bf2005bc0eb3a863f7a47f2bc9f311e0a5672b68e318c0600cb099b3c64f6037a02c97e875b9fd91808d336ca8a7e50ef

        • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\Cache\J66WWIB2\suggestions[1].en-US

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_l4120fme.0hp.ps1

          Filesize

          1B

          MD5

          c4ca4238a0b923820dcc509a6f75849b

          SHA1

          356a192b7913b04c54574d18c28d46e6395428ab

          SHA256

          6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

          SHA512

          4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

        • memory/664-230-0x000001F5BD800000-0x000001F5BD900000-memory.dmp

          Filesize

          1024KB

        • memory/664-232-0x000001F5BD800000-0x000001F5BD900000-memory.dmp

          Filesize

          1024KB

        • memory/1352-51-0x00007FFA64190000-0x00007FFA64B7C000-memory.dmp

          Filesize

          9.9MB

        • memory/1352-13-0x000001FBECC70000-0x000001FBECCE6000-memory.dmp

          Filesize

          472KB

        • memory/1352-12-0x00007FFA64190000-0x00007FFA64B7C000-memory.dmp

          Filesize

          9.9MB

        • memory/1352-10-0x00007FFA64190000-0x00007FFA64B7C000-memory.dmp

          Filesize

          9.9MB

        • memory/1352-8-0x00007FFA64190000-0x00007FFA64B7C000-memory.dmp

          Filesize

          9.9MB

        • memory/1352-7-0x000001FBECAC0000-0x000001FBECAE2000-memory.dmp

          Filesize

          136KB

        • memory/1572-223-0x0000019D1B380000-0x0000019D1B382000-memory.dmp

          Filesize

          8KB

        • memory/1572-549-0x0000019D22F30000-0x0000019D22F31000-memory.dmp

          Filesize

          4KB

        • memory/1572-188-0x0000019D1C220000-0x0000019D1C230000-memory.dmp

          Filesize

          64KB

        • memory/1572-204-0x0000019D1C320000-0x0000019D1C330000-memory.dmp

          Filesize

          64KB

        • memory/1572-548-0x0000019D22F20000-0x0000019D22F21000-memory.dmp

          Filesize

          4KB

        • memory/1736-296-0x0000015BFDBB0000-0x0000015BFDBB2000-memory.dmp

          Filesize

          8KB

        • memory/1736-246-0x0000015BABC00000-0x0000015BABC02000-memory.dmp

          Filesize

          8KB

        • memory/1736-250-0x0000015BABFA0000-0x0000015BAC0A0000-memory.dmp

          Filesize

          1024KB

        • memory/1736-298-0x0000015BFDBD0000-0x0000015BFDBD2000-memory.dmp

          Filesize

          8KB

        • memory/1736-241-0x0000015BAB8B0000-0x0000015BAB8B2000-memory.dmp

          Filesize

          8KB

        • memory/1736-301-0x0000015BFDD60000-0x0000015BFDD62000-memory.dmp

          Filesize

          8KB

        • memory/1736-244-0x0000015BAB8E0000-0x0000015BAB8E2000-memory.dmp

          Filesize

          8KB

        • memory/1736-340-0x0000015BCCE40000-0x0000015BCCF40000-memory.dmp

          Filesize

          1024KB

        • memory/4880-185-0x00007FFA64190000-0x00007FFA64B7C000-memory.dmp

          Filesize

          9.9MB

        • memory/4880-186-0x000000001C170000-0x000000001C17C000-memory.dmp

          Filesize

          48KB

        • memory/4880-0-0x00007FFA64193000-0x00007FFA64194000-memory.dmp

          Filesize

          4KB

        • memory/4880-2-0x00007FFA64190000-0x00007FFA64B7C000-memory.dmp

          Filesize

          9.9MB

        • memory/4880-1-0x00000000007E0000-0x000000000082C000-memory.dmp

          Filesize

          304KB

        • memory/4880-668-0x00007FFA64190000-0x00007FFA64B7C000-memory.dmp

          Filesize

          9.9MB