Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    09/04/2026, 04:34

General

  • Target
    e97446392faf3cb12d043cbd61fae231b414b032a003fb9e47d4edefefd07174.exe
  • Size 1.4MB
  • Sample260409-e7d2yshz8p
  • SHA256 e97446392faf3cb12d043cbd61fae231b414b032a003fb9e47d4edefefd07174
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • chat.ttseokitty.com:9438

Mutex
  • XxVb9zXS9aQMLTHy

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Detects DonutLoader 1 IoCs
  • DonutLoader

    DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

  • Donutloader family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e97446392faf3cb12d043cbd61fae231b414b032a003fb9e47d4edefefd07174.exe
    "C:\Users\Admin\AppData\Local\Temp\e97446392faf3cb12d043cbd61fae231b414b032a003fb9e47d4edefefd07174.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:392
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c set
      2⤵
        PID:768
      • C:\Users\Admin\AppData\Local\Temp\~3464732054394688640~\sg.tmp
        7zG_exe x "C:\Users\Admin\AppData\Local\Temp\e97446392faf3cb12d043cbd61fae231b414b032a003fb9e47d4edefefd07174.exe" -y -aos -o"C:\ProgramData\~6805219293087261616"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2256
      • C:\ProgramData\~6805219293087261616\update.exe
        "C:\ProgramData\~6805219293087261616\update.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1716
    • C:\Users\Admin\AppData\Local\Temp\e97446392faf3cb12d043cbd61fae231b414b032a003fb9e47d4edefefd07174.exe
      "C:\Users\Admin\AppData\Local\Temp\e97446392faf3cb12d043cbd61fae231b414b032a003fb9e47d4edefefd07174.exe"
      1⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4340

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          security_audit_20260406.ini

          • Path C:\ProgramData\~6805219293087261616\security_audit_20260406.ini
          • Size 46KB
          • SHA256 bd9e30d8ae975e64cdd421b9a57e5954c8df183e09df27e4b884cabae92da63a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          update.exe

          • Path C:\ProgramData\~6805219293087261616\update.exe
          • Size 47KB
          • SHA256 c24e3398cc5aba3798c6f7069f6ce923263ca266aa779b95183ba88d86fda08a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          sg.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\~3464732054394688640~\sg.tmp
          • Size 715KB
          • SHA256 4cc32d00338fc7b206a7c052297acf9ac304ae7de9d61a2475a116959c1524fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/392-18-0x0000000000400000-0x0000000000559000-memory.dmp

          memory/392-0-0x0000000000400000-0x0000000000559000-memory.dmp

          memory/392-19-0x0000000003040000-0x00000000030A0000-memory.dmp

          memory/1716-15-0x0000000003090000-0x000000000309C000-memory.dmp

          memory/1716-16-0x000000000A360000-0x000000000A36E000-memory.dmp

          memory/1716-17-0x0000000010160000-0x00000000101FC000-memory.dmp

          memory/1716-20-0x0000000000880000-0x0000000000893000-memory.dmp

          memory/1716-21-0x0000000013BB0000-0x0000000013C16000-memory.dmp

          memory/1716-22-0x00000000224F0000-0x0000000022582000-memory.dmp

          memory/1716-23-0x0000000022B40000-0x00000000230E6000-memory.dmp

          memory/4340-13-0x0000000000400000-0x0000000000559000-memory.dmp

          memory/4340-14-0x0000000000400000-0x0000000000559000-memory.dmp