f3490f455d22ec7714580736caa4f18be48a303021e0bfc236ffb58a7ccf48e0

Analysis

max time kernel
150s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
06/10/2026, 14:27

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
Update.exe
Size 1.3MB
Sample261006-rssb9act5r
SHA256 f3490f455d22ec7714580736caa4f18be48a303021e0bfc236ffb58a7ccf48e0
MD5 cdc31d273398ad252ea260ad410dad42
SHA1 e20bc647cc136e1fdf6a3a3d8a5b9e59f7704a38
SHA512 732285e86f5d851c2228343e94957e923e2dc57e21c8bc9b4ab2c44e50a832de218e0b54a62548be9c660cbd7d2f17c94295fca05f4917d542bb16c4c97ee780
SSDEEP 24576:bcvwkGs1TtOWollWtDl5ax4Xqe3G48myCwE9y+3netdk5cZlRP:bchTtxoKtDaOXqUnwh2Adk5cZlR
TLSH
T19A55332615C5D53AD48726B3CCE746FA6B542C338CA4874B6D50BF00F2B2486E7EAC5B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Update.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	NRank.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	NRank.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	NRank.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-53044966-3830981193-2402648431-1000\Software\Wine	Update.exe
Key opened	\REGISTRY\USER\S-1-5-21-53044966-3830981193-2402648431-1000\Software\Wine	NRank.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
3220	Update.exe
4584	NRank.exe

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.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	Update.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	Update.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NRank.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Update.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3220	Update.exe
3220	Update.exe
4584	NRank.exe
4584	NRank.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3220	Update.exe
3220	Update.exe
4584	NRank.exe
4584	NRank.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3220 wrote to memory of 4584	3220	Update.exe	89

C:\Users\Admin\AppData\Local\Temp\Update.exe
"C:\Users\Admin\AppData\Local\Temp\Update.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3220
- C:\Users\Admin\AppData\Local\Temp\NRank.exe
  C:\Users\Admin\AppData\Local\Temp\NRank.exe
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4584