Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    15/04/2026, 03:33

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 registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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:1892
    • C:\Users\Admin\Documents\diagnostics\audiodg.exe
      "C:\Users\Admin\Documents\diagnostics\audiodg.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:5652
    • 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:4372
      • C:\Users\Admin\Documents\diagnostics\audiodg.exe
        "C:\Users\Admin\Documents\diagnostics\audiodg.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        PID:4564
    • 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:4548
      • 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 WriteProcessMemory
        PID:5376
        • 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:4132
        • C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\drvinst.exe
          "C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\drvinst.exe" "C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\loopBeAu.inf" *LoopBeAu uninstall
          4⤵
          • Executes dropped EXE
          PID:2772

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCX2C3E.tmp

        • Path C:\Program Files\7-Zip\RCX2C3E.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

        009367668126.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\009367668126.ico
        • Size 1KB
        • SHA256 d70944fea4517b3b68ee043da9e5f8cd1ab6559e98666ea93ed7468254ce0785
        • MD5 SHA1 SHA512 TLSH

        064647709835..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\064647709835..exe
        • Size 268KB
        • SHA256 a7f1ec482233f03892d238d24504f2950d583cf580c39acb9bdcbe928066cef1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        126378167029.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\126378167029.ico
        • Size 1KB
        • SHA256 c6ac3a2d4ea590ba6a624de69c86e20852b72c71cc7724a3ff4577fb15b32b2c
        • MD5 SHA1 SHA512 TLSH

        151092446116.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\151092446116.ico
        • Size 1KB
        • SHA256 325e37428cb5578f7f88dcc924a6a2a398d707d3cad6406802a9a06aac630126
        • MD5 SHA1 SHA512 TLSH

        264248705140.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\264248705140.ico
        • Size 1KB
        • SHA256 fe526d6535d43c577cf54d22f446498ad613635860a6300f5b7654765ee9b929
        • MD5 SHA1 SHA512 TLSH

        338570816528.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\338570816528.ico
        • Size 1KB
        • SHA256 80b6b561da261f5549cc3f1b3baad5efc025770ce206b0250977dbab229fe4d7
        • MD5 SHA1 SHA512 TLSH

        475910388219.exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\475910388219.exe
        • Size 4.1MB
        • SHA256 78425e626d0830c35ee05307ad6958055493acebbb8a2548ba3de4af6d6378f7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        490127836616..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\490127836616..exe
        • Size 9.9MB
        • SHA256 2892c988e54ab035646f9538f7493b0ddfe4541c358de28fb4a02fc32d8bdce0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        517668497864.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\517668497864.ico
        • Size 1KB
        • SHA256 3568edd042f59b52c726b5ff682e65fcad53b953397e49838bd017f730436f9d
        • MD5 SHA1 SHA512 TLSH

        711931571753.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\711931571753.ico
        • Size 1KB
        • SHA256 2ea5c025b0613b1a20bc146508cf692b5de4d285f7acc17dc4035315952fd7f8
        • MD5 SHA1 SHA512 TLSH

        738181380631.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\738181380631.ico
        • Size 1KB
        • SHA256 06d58ca32d62202496baef4f3dec37ee2cacdb5775341c6fb4cccfa4448a03f9
        • MD5 SHA1 SHA512 TLSH

        776736001428..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\776736001428..exe
        • Size 3.3MB
        • SHA256 be28b354497c31f2813a97217a3d61e075b03439d4d055c2ce904913de7080be
        • MD5 SHA1 SHA512 SSDEEP TLSH

        801593261232..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\801593261232..exe
        • Size 2.4MB
        • SHA256 de9903082cdf397fc2f6cb24ba226a61b4cc2e402d1ffa99c37f8871be53d1ef
        • MD5 SHA1 SHA512 SSDEEP TLSH

        852420444534..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\852420444534..exe
        • Size 574KB
        • SHA256 a4f22b40651e87830c2ac8f40b9c84d94bda6fe3a54641625b600c3ce2d7d8be
        • MD5 SHA1 SHA512 SSDEEP TLSH

        874661455830..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\874661455830..exe
        • Size 109KB
        • SHA256 108818ed973cfd2d73c374f6cb461639f39caf52bc28f8b7ceb7eab13d5d7b37
        • MD5 SHA1 SHA512 SSDEEP TLSH

        885388014690.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\885388014690.ico
        • Size 1KB
        • SHA256 69868f3977849e6f0726f505ed8ce7ffaadd07268f061d3705980aa32ba74885
        • MD5 SHA1 SHA512 TLSH

        889024331725.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\889024331725.ico
        • Size 1KB
        • SHA256 6573d3579ab0ce71f8d95d6a89d2a4d75f6bbe31a6861ab5b8002ddedb76a477
        • MD5 SHA1 SHA512 TLSH

        952103295719.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\952103295719.ico
        • Size 1KB
        • SHA256 bc1363b69ec13c49d94af754cce4bffe81b589f3bf2039c84bf1472b3b483f6f
        • MD5 SHA1 SHA512 TLSH

        InstallOptions.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\InstallOptions.dll
        • Size 14KB
        • SHA256 c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        drvinst.exe

        • Path C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\drvinst.exe
        • Size 209KB
        • SHA256 9f8e20e94add395570dc2178d755e131ce47dff7f7dab2a899e7f06609fec847
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ioSpecial.ini

        • Path C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\ioSpecial.ini
        • Size 700B
        • SHA256 d70cdd067878c95356a66369f057b66184285338d6e0aaa5cb2f5add963eeae4
        • MD5 SHA1 SHA512 TLSH

        ioSpecial.ini

        • Path C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\ioSpecial.ini
        • Size 852B
        • SHA256 df5282d479c7fbb3a45226a575c7f82643fe0ee714c481db5940451e1d057d4a
        • MD5 SHA1 SHA512 TLSH

        ioSpecial.ini

        • Path C:\Users\Admin\AppData\Local\Temp\nsq2DB4.tmp\ioSpecial.ini
        • Size 878B
        • SHA256 3b8c9b25bd1f2a42bf41f94cb0881cedd7f8931f7a38f1de613834cc26bcfabe
        • MD5 SHA1 SHA512 TLSH

        nsExec.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsq2DB4.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 7333e0c489a9e7fc683a60d707fdfd25e97a79183055cbc3027fd77c01463e19
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4132-3156-0x0000000000900000-0x0000000000A20000-memory.dmp

        memory/4548-141-0x00000000007B0000-0x00000000008D0000-memory.dmp

        memory/4564-17-0x0000000000910000-0x0000000000926000-memory.dmp

        memory/5376-3580-0x00000000008C0000-0x00000000009E0000-memory.dmp