Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/05/2026, 04:31

General

  • Target
    2026-05-03_80103bc0d0c7c4b0b512b99e8b61dc7f_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe
  • Size 477KB
  • Sample260503-e5pqnsbw7w
  • SHA256 cf14fa4859906500742c42e2d1810574d91198404ab8e9191d2eb412d59a802a
  • 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 4 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 1 IoCs

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

  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-03_80103bc0d0c7c4b0b512b99e8b61dc7f_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-03_80103bc0d0c7c4b0b512b99e8b61dc7f_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe"
    1⤵
    • Modifies system executable filetype association
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3296
    • 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:2960
    • 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:5028
      • C:\Users\Admin\Documents\diagnostics\audiodg.exe
        "C:\Users\Admin\Documents\diagnostics\audiodg.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:5048
    • C:\Users\Admin\AppData\Local\Temp\2026-05-03_80103bc0d0c7c4b0b512b99e8b61dc7f_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe
      "C:\Users\Admin\AppData\Local\Temp\2026-05-03_80103bc0d0c7c4b0b512b99e8b61dc7f_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2432

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCX10C7.tmp

        • Path C:\Program Files\7-Zip\RCX10C7.tmp
        • Size 377KB
        • SHA256 80804181642a227e2e88ec2d662d9a85b9ce54b4a93618c34a659193e163a791
        • MD5 SHA1 SHA512 SSDEEP TLSH

        2026-05-03_80103bc0d0c7c4b0b512b99e8b61dc7f_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-05-03_80103bc0d0c7c4b0b512b99e8b61dc7f_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe
        • Size 101KB
        • SHA256 6286434be2b7077bf6ee996f15e6712a040797bf6d366997ad5068a777046dda
        • MD5 SHA1 SHA512 SSDEEP TLSH

        106304639082.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\106304639082.ico
        • Size 1KB
        • SHA256 2ea5c025b0613b1a20bc146508cf692b5de4d285f7acc17dc4035315952fd7f8
        • MD5 SHA1 SHA512 TLSH

        112437854729.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\112437854729.ico
        • Size 1KB
        • SHA256 6573d3579ab0ce71f8d95d6a89d2a4d75f6bbe31a6861ab5b8002ddedb76a477
        • MD5 SHA1 SHA512 TLSH

        138587042823.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\138587042823.ico
        • Size 1KB
        • SHA256 3568edd042f59b52c726b5ff682e65fcad53b953397e49838bd017f730436f9d
        • MD5 SHA1 SHA512 TLSH

        213121253658.exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\213121253658.exe
        • Size 4.1MB
        • SHA256 78425e626d0830c35ee05307ad6958055493acebbb8a2548ba3de4af6d6378f7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        240395009064.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\240395009064.ico
        • Size 1KB
        • SHA256 80b6b561da261f5549cc3f1b3baad5efc025770ce206b0250977dbab229fe4d7
        • MD5 SHA1 SHA512 TLSH

        276916125313..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\276916125313..exe
        • Size 263KB
        • SHA256 66bf24b6a4a645bb814a8d44de5cb98ff544aa24c8acc843d21337260f6f5d43
        • MD5 SHA1 SHA512 SSDEEP TLSH

        295817283477..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\295817283477..exe
        • Size 1.4MB
        • SHA256 e6adb24c63c2622f76ed91b2def9498074716f5e154dd483b3469848e38174af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        345671434207..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\345671434207..exe
        • Size 1.4MB
        • SHA256 1724f2173c7307bea75bb4621bf7f52b673393f8bd2b77ee8308d3061eabe271
        • MD5 SHA1 SHA512 SSDEEP TLSH

        398213316647.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\398213316647.ico
        • Size 1KB
        • SHA256 69868f3977849e6f0726f505ed8ce7ffaadd07268f061d3705980aa32ba74885
        • MD5 SHA1 SHA512 TLSH

        413893063389.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\413893063389.ico
        • Size 1KB
        • SHA256 fe526d6535d43c577cf54d22f446498ad613635860a6300f5b7654765ee9b929
        • MD5 SHA1 SHA512 TLSH

        440421756362.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\440421756362.ico
        • Size 1KB
        • SHA256 c6ac3a2d4ea590ba6a624de69c86e20852b72c71cc7724a3ff4577fb15b32b2c
        • MD5 SHA1 SHA512 TLSH

        559506758553..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\559506758553..exe
        • Size 107KB
        • SHA256 16f7ddaa4944632505f557d45ade328911169a7af17599a71ffe7edfa5eb5f51
        • MD5 SHA1 SHA512 SSDEEP TLSH

        617304224369.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\617304224369.ico
        • Size 1KB
        • SHA256 06d58ca32d62202496baef4f3dec37ee2cacdb5775341c6fb4cccfa4448a03f9
        • MD5 SHA1 SHA512 TLSH

        633062667391.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\633062667391.ico
        • Size 1KB
        • SHA256 d70944fea4517b3b68ee043da9e5f8cd1ab6559e98666ea93ed7468254ce0785
        • MD5 SHA1 SHA512 TLSH

        800613815388.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\800613815388.ico
        • Size 1KB
        • SHA256 bc1363b69ec13c49d94af754cce4bffe81b589f3bf2039c84bf1472b3b483f6f
        • MD5 SHA1 SHA512 TLSH

        827401377599.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\827401377599.ico
        • Size 1KB
        • SHA256 325e37428cb5578f7f88dcc924a6a2a398d707d3cad6406802a9a06aac630126
        • MD5 SHA1 SHA512 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 9b22c36083bd1f6b8e8367fd3cf05dd5eb221852d28568b3eb6c074765628068
        • MD5 SHA1 SHA512 SSDEEP TLSH

        logs.txt

        • Path C:\Users\Admin\Documents\logs.txt
        • Size 4KB
        • SHA256 2a01d8e8e9e7688baae182d41336e8dc6229551a7c10305cade0b0b6eaa2d54d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2960-4358-0x000000001BF50000-0x000000001BF62000-memory.dmp

        memory/2960-4357-0x00000000017B0000-0x00000000017B8000-memory.dmp

        memory/2960-14-0x0000000000E90000-0x0000000000EA6000-memory.dmp

        memory/3296-21-0x0000000002050000-0x00000000020AD000-memory.dmp

        memory/5028-4359-0x0000000002060000-0x00000000020BD000-memory.dmp

        memory/5028-5034-0x0000000002060000-0x00000000020BD000-memory.dmp

        memory/5048-1653-0x0000000000B90000-0x0000000000B98000-memory.dmp