7daf04a3498c969f55cdf52265f30764ca08e53f469ad6de61bbd6f208b0fbf9

Analysis

max time kernel
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
11/09/2026, 14:30

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General

Target
4bbd399d501e12070e49699cc5fabcfa.exe
Size 256KB
Sample260911-rvb32sgk3t
SHA256 7daf04a3498c969f55cdf52265f30764ca08e53f469ad6de61bbd6f208b0fbf9
MD5 4bbd399d501e12070e49699cc5fabcfa
SHA1 0cee434260958cd3b2a7f71e41b7a4b3d7cdbd0b
SHA512 5e528b4222e58d3bd0486b30450cc79505f50d9b35d75e0fe7a5e5bbd42b9a7b26a0857f054a9e61b9a2dbb0f2ecdb9f27020205c26032db63ee4b4786f344cb
SSDEEP 6144:rrMDZe1lXAIAi+V6JGFflSUKnQrzLGtaF:rg87wi+1Fffr
TLSH
T1B7445B56B3A508FAED77823C88531A06E77278120B21CBAF0764477A5F277D09D3EB61
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

adware persistence spyware

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
3640	syshost.exe
4536	syshost.exe
4892	svchostvyg.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000\Software\Microsoft\Windows\CurrentVersion\Run\Syshost = "\"C:\\Users\\Admin\\AppData\\Roaming\\syshost.exe\""	4bbd399d501e12070e49699cc5fabcfa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsUpdateSvc = "C:\\Users\\Admin\\AppData\\Roaming\\svchostvyg.exe"	explorer.exe

Drops desktop.ini file(s) 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Public\Pictures\desktop.ini	explorer.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	explorer.exe
File opened for modification	C:\Users\Public\desktop.ini	explorer.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe

Modifies registry class 17 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{374DE290-123F-4565-9164-39C4925E467B}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A0953C92-50DC-43bf-BE83-3742FED03C9C}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{374DE290-123F-4565-9164-39C4925E467B}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{3ADD1653-EB32-4cb0-BBD7-DFA0ABB5ACCA}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1CF1260C-4DD0-4ebb-811F-33C572699FDE}\Instance\	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1CF1260C-4DD0-4ebb-811F-33C572699FDE}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{3ADD1653-EB32-4cb0-BBD7-DFA0ABB5ACCA}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A0953C92-50DC-43bf-BE83-3742FED03C9C}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000_Classes\NotificationData	explorer.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4928	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4536	syshost.exe
4536	syshost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
700	explorer.exe
4928	explorer.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	4536	syshost.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe
Token: SeShutdownPrivilege	700	explorer.exe
Token: SeCreatePagefilePrivilege	700	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4928	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4928	explorer.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1896 wrote to memory of 3640	1896	4bbd399d501e12070e49699cc5fabcfa.exe	89
PID 4536 wrote to memory of 700	4536	syshost.exe	82
PID 700 wrote to memory of 3744	700	explorer.exe

C:\Windows\explorer.exe
explorer.exe /LOADSAVEDWINDOWS
1⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:700
- C:\Users\Admin\AppData\Local\Temp\4bbd399d501e12070e49699cc5fabcfa.exe
  "C:\Users\Admin\AppData\Local\Temp\4bbd399d501e12070e49699cc5fabcfa.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1896
- - C:\Users\Admin\AppData\Roaming\syshost.exe
    C:\Users\Admin\AppData\Roaming\syshost.exe
    3⤵
    - Executes dropped EXE
    PID:3640

C:\Users\Admin\AppData\Roaming\syshost.exe
"C:\Users\Admin\AppData\Roaming\syshost.exe"
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4536

C:\Users\Admin\AppData\Roaming\svchostvyg.exe
C:\Users\Admin\AppData\Roaming\svchostvyg.exe
1⤵
- Executes dropped EXE
PID:4892

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Drops desktop.ini file(s)
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4928

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

svchostvyg.exe

Path C:\Users\Admin\AppData\Roaming\svchostvyg.exe
Size 2.7MB
SHA256 75a58fed6d38498775ec288ff7da54209c47cea2625f7eaedf15ef2d0e6c1add
MD5 38c5baa5bb4685a66f7b661b17ba53d7
SHA1 8ac453ad7bbe88d8b779ee7b5cd7a7b44dac115f
SHA512 b69d6cd01b2f07babe5e45ed30bf208701e909812ccab35abd7eedbbee9d3f957c7facdc8ba2d86980a98f9f1623f36f0376374f56e67a2ebe1aa5276f2b4bf2
SSDEEP 49152:OGwY2N3ZkD80rbU1CbyrOwGlxEs5Itbw8A7/eFwz:OcuGlGtbw8a0E
TLSH
T1F5D59D1D27E840C4D1BA803CC9468B27E9713C251731A6DB0660FA7D6F33AE59A7EF52
MD5 SHA1 SHA512 SSDEEP TLSH

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syshost.exe

Path C:\Users\Admin\AppData\Roaming\syshost.exe
Size 256KB
SHA256 7daf04a3498c969f55cdf52265f30764ca08e53f469ad6de61bbd6f208b0fbf9
MD5 4bbd399d501e12070e49699cc5fabcfa
SHA1 0cee434260958cd3b2a7f71e41b7a4b3d7cdbd0b
SHA512 5e528b4222e58d3bd0486b30450cc79505f50d9b35d75e0fe7a5e5bbd42b9a7b26a0857f054a9e61b9a2dbb0f2ecdb9f27020205c26032db63ee4b4786f344cb
SSDEEP 6144:rrMDZe1lXAIAi+V6JGFflSUKnQrzLGtaF:rg87wi+1Fffr
TLSH
T1B7445B56B3A508FAED77823C88531A06E77278120B21CBAF0764477A5F277D09D3EB61
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/700-3-0x0000000006270000-0x000000000629D000-memory.dmp

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memory/700-5-0x0000000006270000-0x000000000629D000-memory.dmp

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memory/700-2-0x00000000031B0000-0x00000000031D8000-memory.dmp

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memory/700-6-0x0000000003190000-0x0000000003191000-memory.dmp

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memory/700-7-0x00000000031E0000-0x00000000031E1000-memory.dmp

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memory/700-10-0x0000000006270000-0x000000000629D000-memory.dmp

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memory/4928-11-0x000000000D3C0000-0x000000000D70C000-memory.dmp

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