Analysis
- user interaction
yes - max time kernel
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
02/07/2026, 23:52
General
- Target _Silent Update.cmd
- Size 1KB
- Sample260702-3w2kwagx21
- SHA256 1d433ad24bd7efbfcee720496cb557fa36bcbf6d50ad57968e988e413b359c57
Malware Config
Signatures
- Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 18 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Installs/modifies Browser Helper Object 2 TTPs 3 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
- Drops file in Program Files directory 64 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 11 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Inno Setup is an open-source installation builder for Windows applications. 1 IoCs
Inno Setup installer
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Modifies registry class 64 IoCs
- Runs .reg file with regedit 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\_Silent Update.cmd"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Internet Download Manager 6.42.64.exe"Internet Download Manager 6.42.64.exe" /SILENT /UPDATE=12⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-HF6N1.tmp\Internet Download Manager 6.42.64.tmp"C:\Users\Admin\AppData\Local\Temp\is-HF6N1.tmp\Internet Download Manager 6.42.64.tmp" /SL5="$A0278,14238184,64512,C:\Users\Admin\AppData\Local\Temp\Internet Download Manager 6.42.64.exe" /SILENT /UPDATE=13⤵
- Executes dropped EXE
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Internet Download Manager\downlWithIDM.dll"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Internet Download Manager\IDMGetAll.dll"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Internet Download Manager\IDMIECC.dll"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Internet Download Manager\idmfsa.dll"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
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C:\Windows\system32\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Internet Download Manager\IDMShellExt64.dll"4⤵
- Loads dropped DLL
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Internet Download Manager\downlWithIDM64.dll"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\regsvr32.exe/s "C:\Program Files (x86)\Internet Download Manager\downlWithIDM64.dll"5⤵
- Loads dropped DLL
- Modifies registry class
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Internet Download Manager\IDMGetAll64.dll"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\regsvr32.exe/s "C:\Program Files (x86)\Internet Download Manager\IDMGetAll64.dll"5⤵
- Loads dropped DLL
- Modifies registry class
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Internet Download Manager\IDMIECC64.dll"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\regsvr32.exe/s "C:\Program Files (x86)\Internet Download Manager\IDMIECC64.dll"5⤵
- Loads dropped DLL
- Modifies registry class
-
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s /u "C:\Program Files (x86)\Internet Download Manager\IDMShellExt.dll"4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
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C:\Windows\SysWOW64\regedit.exe"C:\Windows\regedit.exe" /S "C:\Users\Admin\AppData\Local\Temp\settings.reg"4⤵
- System Location Discovery: System Language Discovery
- Runs .reg file with regedit
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
IDMGetAll.dll
IDMGetAll64.dll
IDMIECC.dll
IDMIECC64.dll
IDMNetMon64.dll
IDMShellExt.dll
IDMShellExt64.dll
downlWithIDM.dll
downlWithIDM64.dll
idmfsa.dll
Internet Download Manager 6.42.64.tmp
ISTask.dll
VclStylesInno.dll
memory/3940-73-0x0000000008360000-0x0000000008361000-memory.dmp
memory/3940-42-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-83-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-81-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-77-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-87-0x0000000007F8E000-0x0000000007F8F000-memory.dmp
memory/3940-75-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-74-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-72-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-71-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-69-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-68-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-66-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-65-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-63-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-62-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-60-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-59-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-57-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-56-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-54-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-53-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-82-0x0000000008390000-0x0000000008391000-memory.dmp
memory/3940-79-0x0000000008380000-0x0000000008381000-memory.dmp
memory/3940-50-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-48-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-47-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-78-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-76-0x0000000008370000-0x0000000008371000-memory.dmp
memory/3940-80-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-70-0x0000000008350000-0x0000000008351000-memory.dmp
memory/3940-67-0x0000000008340000-0x0000000008341000-memory.dmp
memory/3940-64-0x0000000008330000-0x0000000008331000-memory.dmp
memory/3940-61-0x0000000008320000-0x0000000008321000-memory.dmp
memory/3940-58-0x0000000008310000-0x0000000008311000-memory.dmp
memory/3940-55-0x0000000008300000-0x0000000008301000-memory.dmp
memory/3940-52-0x00000000082F0000-0x00000000082F1000-memory.dmp
memory/3940-84-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-41-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-39-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-46-0x00000000082D0000-0x00000000082D1000-memory.dmp
memory/3940-38-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-35-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-44-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-45-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-43-0x00000000082C0000-0x00000000082C1000-memory.dmp
memory/3940-33-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-32-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-31-0x0000000008280000-0x0000000008281000-memory.dmp
memory/3940-30-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-29-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-37-0x00000000082A0000-0x00000000082A1000-memory.dmp
memory/3940-34-0x0000000008290000-0x0000000008291000-memory.dmp
memory/3940-28-0x0000000008270000-0x0000000008271000-memory.dmp
memory/3940-26-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-25-0x0000000008260000-0x0000000008261000-memory.dmp
memory/3940-88-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-89-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-90-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-91-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-92-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-96-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-51-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-49-0x00000000082E0000-0x00000000082E1000-memory.dmp
memory/3940-36-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-40-0x00000000082B0000-0x00000000082B1000-memory.dmp
memory/3940-27-0x0000000008110000-0x0000000008250000-memory.dmp
memory/3940-23-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-17-0x0000000007BC0000-0x0000000007BD6000-memory.dmp
memory/3940-6-0x00000000023F0000-0x00000000023F1000-memory.dmp
memory/3940-95-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-477-0x0000000007DF0000-0x000000000810A000-memory.dmp
memory/3940-535-0x0000000000400000-0x00000000004F7000-memory.dmp
memory/7060-0-0x0000000000400000-0x0000000000417000-memory.dmp