Analysis

  • max time kernel
    16s
  • max time network
    18s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    15/04/2026, 03:33

Errors

Reason
Machine shutdown

General

  • Target
    2026-04-15_1412f781547db10cfe3083afb345219e_cloudeye_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe
  • Size 842KB
  • Sample260415-d4a1fsd15m
  • SHA256 54ce8893d9f0fdab75bb383b5320a36ccc0b10c27db1c5c7bc6be5082227c944
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • XWorm V5.6

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/Fxzr3jeT

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

  • Detect Xworm Payload 4 IoCs
  • Custom signature
    Detects Windows executables referencing non-Windows User-Agents 4 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 7 IoCs
  • Modifies system executable filetype association 2 TTPs 6 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
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • NSIS installer 2 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies data under HKEY_USERS 15 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-15_1412f781547db10cfe3083afb345219e_cloudeye_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-15_1412f781547db10cfe3083afb345219e_cloudeye_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe"
    1⤵
    • Modifies system executable filetype association
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5872
    • C:\Users\Admin\Documents\diagnostics\audiodg.exe
      "C:\Users\Admin\Documents\diagnostics\audiodg.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      PID:5104
    • C:\Users\Admin\Documents\diagnostics\shost.exe
      "C:\Users\Admin\Documents\diagnostics\shost.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:6064
      • C:\Users\Admin\Documents\diagnostics\audiodg.exe
        "C:\Users\Admin\Documents\diagnostics\audiodg.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4268
    • C:\Users\Admin\AppData\Local\Temp\2026-04-15_1412f781547db10cfe3083afb345219e_cloudeye_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe
      "C:\Users\Admin\AppData\Local\Temp\2026-04-15_1412f781547db10cfe3083afb345219e_cloudeye_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3004
      • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
        "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3976
        • C:\Windows\SysWOW64\taskkill.exe
          "C:\Windows\system32\taskkill.exe" /im loopBeAudio.exe /f /t
          4⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1520
        • C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\drvinst.exe
          "C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\drvinst.exe" "C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\loopBeAu.inf" *LoopBeAu uninstall
          4⤵
          • Executes dropped EXE
          PID:5840
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa3a32855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:5488

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCXEED7.tmp

        • Path C:\Program Files\7-Zip\RCXEED7.tmp
        • Size 377KB
        • SHA256 5adff66fb2cf618832f3dd3d324d475ee3189ca3772e06df7fe9ebfb09e05410
        • MD5 SHA1 SHA512 SSDEEP TLSH

        2026-04-15_1412f781547db10cfe3083afb345219e_cloudeye_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-04-15_1412f781547db10cfe3083afb345219e_cloudeye_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe
        • Size 466KB
        • SHA256 3f411003a58e25dc6d9874d57f651765b1afde87eb0aa8159e33fe87a187c8d4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        055550559473.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\055550559473.ico
        • Size 1KB
        • SHA256 06d58ca32d62202496baef4f3dec37ee2cacdb5775341c6fb4cccfa4448a03f9
        • MD5 SHA1 SHA512 TLSH

        097174781663.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\097174781663.ico
        • Size 1KB
        • SHA256 80b6b561da261f5549cc3f1b3baad5efc025770ce206b0250977dbab229fe4d7
        • MD5 SHA1 SHA512 TLSH

        147839671787.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\147839671787.ico
        • Size 1KB
        • SHA256 3568edd042f59b52c726b5ff682e65fcad53b953397e49838bd017f730436f9d
        • MD5 SHA1 SHA512 TLSH

        205949159204.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\205949159204.ico
        • Size 1KB
        • SHA256 6573d3579ab0ce71f8d95d6a89d2a4d75f6bbe31a6861ab5b8002ddedb76a477
        • MD5 SHA1 SHA512 TLSH

        266487815859.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\266487815859.ico
        • Size 1KB
        • SHA256 d70944fea4517b3b68ee043da9e5f8cd1ab6559e98666ea93ed7468254ce0785
        • MD5 SHA1 SHA512 TLSH

        296881295013.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\296881295013.ico
        • Size 1KB
        • SHA256 fe526d6535d43c577cf54d22f446498ad613635860a6300f5b7654765ee9b929
        • MD5 SHA1 SHA512 TLSH

        358382960752.exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\358382960752.exe
        • Size 263KB
        • SHA256 66bf24b6a4a645bb814a8d44de5cb98ff544aa24c8acc843d21337260f6f5d43
        • MD5 SHA1 SHA512 SSDEEP TLSH

        398051085858.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\398051085858.ico
        • Size 1KB
        • SHA256 bc1363b69ec13c49d94af754cce4bffe81b589f3bf2039c84bf1472b3b483f6f
        • MD5 SHA1 SHA512 TLSH

        560327747576.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\560327747576.ico
        • Size 1KB
        • SHA256 69868f3977849e6f0726f505ed8ce7ffaadd07268f061d3705980aa32ba74885
        • MD5 SHA1 SHA512 TLSH

        573727717934.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\573727717934.ico
        • Size 1KB
        • SHA256 2ea5c025b0613b1a20bc146508cf692b5de4d285f7acc17dc4035315952fd7f8
        • MD5 SHA1 SHA512 TLSH

        682684654007..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\682684654007..exe
        • Size 1.4MB
        • SHA256 1724f2173c7307bea75bb4621bf7f52b673393f8bd2b77ee8308d3061eabe271
        • MD5 SHA1 SHA512 SSDEEP TLSH

        701301082526..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\701301082526..exe
        • Size 1.4MB
        • SHA256 e6adb24c63c2622f76ed91b2def9498074716f5e154dd483b3469848e38174af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        786102811553..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\786102811553..exe
        • Size 107KB
        • SHA256 16f7ddaa4944632505f557d45ade328911169a7af17599a71ffe7edfa5eb5f51
        • MD5 SHA1 SHA512 SSDEEP TLSH

        947341194864.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\947341194864.ico
        • Size 1KB
        • SHA256 325e37428cb5578f7f88dcc924a6a2a398d707d3cad6406802a9a06aac630126
        • MD5 SHA1 SHA512 TLSH

        962634834566.exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\962634834566.exe
        • Size 4.1MB
        • SHA256 78425e626d0830c35ee05307ad6958055493acebbb8a2548ba3de4af6d6378f7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        985180135285.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\985180135285.ico
        • Size 1KB
        • SHA256 c6ac3a2d4ea590ba6a624de69c86e20852b72c71cc7724a3ff4577fb15b32b2c
        • MD5 SHA1 SHA512 TLSH

        InstallOptions.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\InstallOptions.dll
        • Size 14KB
        • SHA256 c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        drvinst.exe

        • Path C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\drvinst.exe
        • Size 209KB
        • SHA256 9f8e20e94add395570dc2178d755e131ce47dff7f7dab2a899e7f06609fec847
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ioSpecial.ini

        • Path C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\ioSpecial.ini
        • Size 739B
        • SHA256 8853209e7ace7fbc2dc987cda7e7e72fd85fbb44839d3e9b91defd5f8ba3d78a
        • MD5 SHA1 SHA512 TLSH

        ioSpecial.ini

        • Path C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\ioSpecial.ini
        • Size 878B
        • SHA256 6ccffea10b9a94c73e4b341775e4dfecd124625992fe25a456c1828adefefc4f
        • MD5 SHA1 SHA512 TLSH

        nsExec.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsmEFF0.tmp\nsExec.dll
        • Size 6KB
        • SHA256 168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        audiodg.exe

        • Path C:\Users\Admin\Documents\diagnostics\audiodg.exe
        • Size 62KB
        • SHA256 76957a7db92abf1667474a4e45477cea7297e9a25c78c1fadd94795fc5390833
        • MD5 SHA1 SHA512 SSDEEP TLSH

        shost.exe

        • Path C:\Users\Admin\Documents\diagnostics\shost.exe
        • Size 375KB
        • SHA256 e4956e3eea7716d488281acc0384d5bc60477ed9532fcebd47404bb440517091
        • MD5 SHA1 SHA512 SSDEEP TLSH

        logs.txt

        • Path C:\Users\Admin\Documents\logs.txt
        • Size 4KB
        • SHA256 b0b59524229ab6cd4b79ae971510a46594a74d3b56262c93b8daa57076766f5e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1520-3997-0x0000000000CF0000-0x0000000000F7B000-memory.dmp

        memory/3004-141-0x0000000000880000-0x0000000000B0B000-memory.dmp

        memory/3976-4596-0x00000000008A0000-0x0000000000B2B000-memory.dmp

        memory/3976-5309-0x00000000008A0000-0x0000000000B2B000-memory.dmp

        memory/4268-1539-0x000000001AFF0000-0x000000001AFFC000-memory.dmp

        memory/5104-4595-0x000000001C910000-0x000000001C922000-memory.dmp

        memory/5104-4594-0x000000001AFE0000-0x000000001AFEC000-memory.dmp

        memory/5104-20-0x0000000000360000-0x0000000000376000-memory.dmp