Analysis
- max time kernel
151s - max time network
126s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/09/2026, 22:38
Behavioral task
behavioral1
Sample
InstallerV29412x64.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
InstallerV29412x64.exe
Resource
win11ltsc2024-20260911-en
General
- Target InstallerV29412x64.exe
- Size 15.8MB
- Sample260925-2khg7aybnc
- SHA256 e4eff0598023a539ffe527c32575c36e3357b5ef2a589a4b369eb1ab606ac67d
- MD5 7d78dd677048d2760a9fe58609ba962f
- SHA1 b76d8cb4269824949670044b02a9172127144d90
- SHA512 74372a311082e3afacef6edb42cd6d3daaee178c5c47630cc6d49be42bfe03113b85002a1433f71414586d5b9ef24cb48f796a88c4fc370726df74056c1f16d5
- SSDEEP 393216:qOOh1Xl286I9p1CY3qaPcWVKNxKkNdQLySKLKQ:XE1Xl7DCY3qakJKkNdzSKmQ
- TLSH T15EF63380AB87B3AED74B33F1A754F99351297EEE27953A64B04CBF03663C001A656643
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Family: CNBackdoor
CNBackdoor aka CNB Bot is a backdoor that polls its C2 to download and execute additional malware.
- Enumerates VirtualBox registry keys 2 TTPs 4 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest TimerSourceChecker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF TimerSourceChecker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest services.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF services.exe - Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ InstallerV29412x64.exe - Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions TimerSourceChecker.exe Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions services.exe - Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 1684 powershell.exe 2096 powershell.exe 1684 powershell.exe - Looks for VMWare Tools registry key 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools services.exe Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools TimerSourceChecker.exe - Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion InstallerV29412x64.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion InstallerV29412x64.exe - Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\GalleryDrive.lnk TimerSourceChecker.exe - Executes a file named after a Windows system binary 1 TTPs 2 IoCs
The file runs from a user directory while carrying the name of an executable that normally only exists in System32.
description ioc Process File opened (read-only) C:\Users\Admin\AppData\Roaming\GalleryDrive\N0039\services.exe TimerSourceChecker.exe File opened (read-only) C:\Users\Admin\AppData\Roaming\GalleryDrive\N0039\services.exe services.exe - Executes dropped EXE 2 IoCs
pid Process 3088 TimerSourceChecker.exe 5772 services.exe -
resource yara_rule behavioral2/memory/2168-8-0x0000000000400000-0x0000000001BD8000-memory.dmp themida behavioral2/memory/2168-9-0x0000000000400000-0x0000000001BD8000-memory.dmp themida behavioral2/memory/2168-60-0x0000000000400000-0x0000000001BD8000-memory.dmp themida - Checks whether UAC is enabled 1 TTPs 1 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA InstallerV29412x64.exe - Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
ioc Process \??\F:\ powershell.exe \??\F:\ powershell.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 1 IoCs
pid Process 2168 InstallerV29412x64.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 2064 cmd.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname TimerSourceChecker.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain TimerSourceChecker.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname services.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain services.exe - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 services.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString services.exe - Delays execution with timeout.exe 1 IoCs
pid Process 1112 timeout.exe - Suspicious behavior: EnumeratesProcesses 37 IoCs
pid Process 1684 powershell.exe 1684 powershell.exe 2096 powershell.exe 2096 powershell.exe 2096 powershell.exe 3088 TimerSourceChecker.exe 3088 TimerSourceChecker.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe 5772 services.exe - Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeDebugPrivilege 2168 InstallerV29412x64.exe Token: SeDebugPrivilege 1684 powershell.exe Token: SeIncreaseQuotaPrivilege 1684 powershell.exe Token: SeSecurityPrivilege 1684 powershell.exe Token: SeTakeOwnershipPrivilege 1684 powershell.exe Token: SeLoadDriverPrivilege 1684 powershell.exe Token: SeSystemProfilePrivilege 1684 powershell.exe Token: SeSystemtimePrivilege 1684 powershell.exe Token: SeProfSingleProcessPrivilege 1684 powershell.exe Token: SeIncBasePriorityPrivilege 1684 powershell.exe Token: SeCreatePagefilePrivilege 1684 powershell.exe Token: SeBackupPrivilege 1684 powershell.exe Token: SeRestorePrivilege 1684 powershell.exe Token: SeShutdownPrivilege 1684 powershell.exe Token: SeDebugPrivilege 1684 powershell.exe Token: SeSystemEnvironmentPrivilege 1684 powershell.exe Token: SeRemoteShutdownPrivilege 1684 powershell.exe Token: SeUndockPrivilege 1684 powershell.exe Token: SeManageVolumePrivilege 1684 powershell.exe Token: 33 1684 powershell.exe Token: 34 1684 powershell.exe Token: 35 1684 powershell.exe Token: 36 1684 powershell.exe Token: SeIncreaseQuotaPrivilege 1684 powershell.exe Token: SeSecurityPrivilege 1684 powershell.exe Token: SeTakeOwnershipPrivilege 1684 powershell.exe Token: SeLoadDriverPrivilege 1684 powershell.exe Token: SeSystemProfilePrivilege 1684 powershell.exe Token: SeSystemtimePrivilege 1684 powershell.exe Token: SeProfSingleProcessPrivilege 1684 powershell.exe Token: SeIncBasePriorityPrivilege 1684 powershell.exe Token: SeCreatePagefilePrivilege 1684 powershell.exe Token: SeBackupPrivilege 1684 powershell.exe Token: SeRestorePrivilege 1684 powershell.exe Token: SeShutdownPrivilege 1684 powershell.exe Token: SeDebugPrivilege 1684 powershell.exe Token: SeSystemEnvironmentPrivilege 1684 powershell.exe Token: SeRemoteShutdownPrivilege 1684 powershell.exe Token: SeUndockPrivilege 1684 powershell.exe Token: SeManageVolumePrivilege 1684 powershell.exe Token: 33 1684 powershell.exe Token: 34 1684 powershell.exe Token: 35 1684 powershell.exe Token: 36 1684 powershell.exe Token: SeDebugPrivilege 2096 powershell.exe Token: SeDebugPrivilege 3088 TimerSourceChecker.exe Token: SeDebugPrivilege 5772 services.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2168 wrote to memory of 1684 2168 InstallerV29412x64.exe 90 PID 2168 wrote to memory of 2096 2168 InstallerV29412x64.exe 93 PID 2096 wrote to memory of 3088 2096 powershell.exe 95 PID 3088 wrote to memory of 5772 3088 TimerSourceChecker.exe 96 PID 3088 wrote to memory of 2064 3088 TimerSourceChecker.exe 97 PID 2064 wrote to memory of 1112 2064 cmd.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\InstallerV29412x64.exe"C:\Users\Admin\AppData\Local\Temp\InstallerV29412x64.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath @('C:\Users\Admin\AppData\Local\Temp\','C:\Users\Admin\AppData\Local\Temp\InstallerV29412x64.exe','C:\Users\Admin\AppData\Local','C:\Users\Admin\AppData\Roaming','C:\Users\Admin\AppData\Local','C:\Users\Admin\AppData\Roaming','RuntimeBroker.exe','AppLaunch.exe','dwm.exe','svchost.exe','explorer.exe','services.exe','schtasks.exe','conhost.exe'); Add-MpPreference -ExclusionProcess @('C:\Users\Admin\AppData\Local\Temp\InstallerV29412x64.exe','RuntimeBroker.exe','InstallUtil.exe','AppLaunch.exe','dwm.exe','svchost.exe','explorer.exe','services.exe','schtasks.exe','conhost.exe','wscript.exe','concheck.exe','pathmsil.exe','ioextender.exe','TimerSourceChecker.exe')"2⤵
- Command and Scripting Interpreter: PowerShell
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1684
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -WindowStyle Hidden Start-Process 'C:\Users\Admin\AppData\Local\Temp\\TimerSourceChecker.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2096 -
C:\Users\Admin\AppData\Local\Temp\TimerSourceChecker.exe"C:\Users\Admin\AppData\Local\Temp\TimerSourceChecker.exe"3⤵
- Enumerates VirtualBox registry keys
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Creates a file in the Startup directory
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3088 -
C:\Users\Admin\AppData\Roaming\GalleryDrive\N0039\services.exe"C:\Users\Admin\AppData\Roaming\GalleryDrive\N0039\services.exe"4⤵
- Enumerates VirtualBox registry keys
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5772
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\qccj27i0.bat""4⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\system32\timeout.exetimeout /t 3 /nobreak5⤵
- Delays execution with timeout.exe
PID:1112
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Debugger Evasion
1Masquerading
1Match Legitimate Name or Location
1Virtualization/Sandbox Evasion
4Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 1KB
- SHA256 070e2dc002fee5d6c6ae0611713bb24a9f01d741d964e7f1ece4f61789724a94
- MD5 95e9928464a1f3425068f7e64a74060a
- SHA1 9bdbd59bea34afd0aebf4d0c3d3cfe0317aa4d57
- SHA512 a150525324ebe4a0dc28577f089c1f45ef0902355ecd9d5f10c91d45fe57d44d09c6d133a92c3f32dca0c73b97b259d5ad7ff4316edafa2cb00e38d64e043f06
- TLSH T1E9216833F3DD8654C899413A10CEAC1035B7C7DB40DECEDB6B84D559A43F699CE61160
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\TimerSourceChecker.exe
- Size 544KB
- SHA256 b0feb3b7403ffd4d025d180b5f1c671b3fad8a0547acaf9ac3c781ec807118da
- MD5 5cd5c18c811ef51289413564d188a63e
- SHA1 a32f5d5babc678ff8420e661407623ada9eb15f2
- SHA512 72a1481afaffe3e559f31335941f858cbbe0f16cc02e32ef4cdbc7dd41d771e529230d5a1cef8880a006fcb74fa7d96ed86118db666a9d5cf91806293293b560
- SSDEEP 6144:+3htWrYDaDZ7ZoV609FMzoieQEhC664uF4ppONbnC2p1NK2qDc7:+3WYMtJS1Q2uSXONbnjNK2qDO
- TLSH T1E1C44B17B6464D60C5841736F6DB8000A7F09686BAB7E6497E8D17CA4D033FFED8A287
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_m34ptdno.px3.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\qccj27i0.bat
- Size 220B
- SHA256 90b154264c6a0a6d32647036c77ab91c21045b9e25aa51699a0a7cb5f570d0b2
- MD5 a8b9a11c35a80ce0011d4fa5ecabc0a1
- SHA1 09d3ed2308d03bef294d37fc9d48ebe1f0b7f60e
- SHA512 d3e817a0e57a97ce00f53e3260737c9b4bd9ac8f564493082fcaa8c3a3a2c7472d9d2d1a4662b53a143027047f95395639f645387f57d640acc7a082c8948c12
- TLSH T1B5D0A71F534B578914503076096E10E9A4E90C591B49A356C753801B568B41B52D7BC4
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\GalleryDrive\N0039\install.dat
- Size 62B
- SHA256 70f094f451c5fd9f987c5f591be1538e49ec0dfd2ead6f30524e30e358009eb1
- MD5 2a6577e75478eb2d9031800e82368a19
- SHA1 24f801ac5aae75fe28c21172831e82545329aef9
- SHA512 8a7307935232d2e67baefe2656a3c3181154c289fc853b9d6ce972c1ef4cf138398e3322c1f9d87268fde29cc78c913f910409f9f00d150667f72fddbc4ae3cb
- TLSH T1DCA0220000CE8E0C200280CB8F33002888A00200AB883A30ABB2A0E800C0C0CA080032
- MD5 SHA1 SHA512 TLSH