Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    113s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 13:06

General

  • Target
    MsDtcProxy.exe
  • Size 486KB
  • Sample261102-qcewjsas5v
  • SHA256 ba8b0b9d2549ef68fea99dba9f69e8e9d735de35ae83fc36866b094289ad5a32
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 2 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 12 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • Modify Registry: Disable Windows Driver Blocklist 2 TTPs 2 IoCs

    Disable Windows Driver Blocklist via Registry.

  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
  • Executes dropped EXE 13 IoCs
  • Loads dropped DLL 64 IoCs
  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 4 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Modifies data under HKEY_USERS 13 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\MsDtcProxy.exe
    "C:\Users\Admin\AppData\Local\Temp\MsDtcProxy.exe"
    1⤵
    • Modifies Windows Defender DisableAntiSpyware settings
    • Modifies Windows Defender Real-time Protection settings
    • Windows security bypass
    • Modify Registry: Disable Windows Driver Blocklist
    • Windows security modification
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5068
    • C:\Windows\system32\MsDtcProxy.exe
      "C:\Windows\system32\MsDtcProxy.exe" /mason-daemon
      2⤵
      • Modifies WinLogon for persistence
      • Modifies Windows Defender DisableAntiSpyware settings
      • Modifies Windows Defender Real-time Protection settings
      • Windows security bypass
      • Drops file in Drivers directory
      • Modify Registry: Disable Windows Driver Blocklist
      • Server Software Component: Terminal Services DLL
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4940
      • C:\Windows\system32\bcdedit.exe
        bcdedit.exe /set testsigning on
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2956
      • C:\Windows\system32\bcdedit.exe
        bcdedit.exe /set testsigning on
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2380
      • C:\Windows\system32\bcdedit.exe
        "C:\Windows\system32\bcdedit.exe" /set testsigning on
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:8092
      • C:\Windows\system32\bcdedit.exe
        "C:\Windows\system32\bcdedit.exe" /set nointegritychecks on
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:8372
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -s MsDtcHealthNet
    1⤵
      PID:7908

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          MsDtcDbg.txt

          • Path C:\ProgramData\MsDtcDbg.txt
          • Size 357B
          • SHA256 c1b392fa66698ebb9649e64ad8e3ec182dadbf240488eaeead2dcc9c54196b01
          • MD5 SHA1 SHA512 TLSH

          MsDtcHealth.cfg

          • Path C:\ProgramData\MsDtcHealth.cfg
          • Size 10B
          • SHA256 10e07dced572dc4d556676547d01a014c504e76762dc7f94ac12265be918adc6
          • MD5 SHA1 SHA512

          MsDtcHealth.log

          • Path C:\ProgramData\MsDtcHealth.log
          • Size 2KB
          • SHA256 a82bd0629033d9eb64e73dabc2520ce46b22add71d0e481c6e04268529983eb0
          • MD5 SHA1 SHA512 TLSH

          MsDtcHelper.dll

          • Path C:\Windows\System32\MsDtcHelper.dll
          • Size 149KB
          • SHA256 624963655f299b49a66675bea71e2f15387d01c8d585037f0c63fa353937bc69
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MsDtcProxy.exe

          • Path C:\Windows\System32\MsDtcProxy.exe
          • Size 486KB
          • SHA256 ba8b0b9d2549ef68fea99dba9f69e8e9d735de35ae83fc36866b094289ad5a32
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/980-43-0x000001BD709D0000-0x000001BD709D1000-memory.dmp

          memory/980-36-0x000001BD70610000-0x000001BD70611000-memory.dmp

          memory/980-54-0x00007FFC74B5F000-0x00007FFC74B60000-memory.dmp

          memory/980-52-0x000001BD70A60000-0x000001BD70A61000-memory.dmp

          memory/980-51-0x000001BD70A50000-0x000001BD70A51000-memory.dmp

          memory/980-50-0x000001BD70A40000-0x000001BD70A41000-memory.dmp

          memory/980-49-0x000001BD70A30000-0x000001BD70A31000-memory.dmp

          memory/980-47-0x000001BD70A10000-0x000001BD70A11000-memory.dmp

          memory/980-44-0x000001BD709E0000-0x000001BD709E1000-memory.dmp

          memory/980-46-0x000001BD70A00000-0x000001BD70A01000-memory.dmp

          memory/980-45-0x000001BD709F0000-0x000001BD709F1000-memory.dmp

          memory/980-48-0x000001BD70A20000-0x000001BD70A21000-memory.dmp

          memory/980-42-0x000001BD709C0000-0x000001BD709C1000-memory.dmp

          memory/980-41-0x000001BD709B0000-0x000001BD709B1000-memory.dmp

          memory/980-40-0x000001BD709A0000-0x000001BD709A1000-memory.dmp

          memory/980-53-0x000001BD70A70000-0x000001BD70A71000-memory.dmp

          memory/980-39-0x000001BD70990000-0x000001BD70991000-memory.dmp

          memory/980-38-0x000001BD70980000-0x000001BD70981000-memory.dmp

          memory/980-37-0x000001BD70970000-0x000001BD70971000-memory.dmp

          memory/980-35-0x000001BD70600000-0x000001BD70601000-memory.dmp

          memory/1948-155-0x0000000006010000-0x0000000006011000-memory.dmp

          memory/1948-158-0x0000000006040000-0x0000000006041000-memory.dmp

          memory/1948-156-0x0000000006020000-0x0000000006021000-memory.dmp

          memory/1948-157-0x0000000006030000-0x0000000006031000-memory.dmp

          memory/2208-86-0x0000000001CB0000-0x0000000001CB1000-memory.dmp

          memory/2208-84-0x0000000001C90000-0x0000000001C91000-memory.dmp

          memory/2208-83-0x0000000001C80000-0x0000000001C81000-memory.dmp

          memory/4984-116-0x000002545E3F0000-0x000002545E3F1000-memory.dmp

          memory/4984-114-0x000002545E0E0000-0x000002545E0E1000-memory.dmp

          memory/4984-115-0x000002545E3E0000-0x000002545E3E1000-memory.dmp