e19011e478a695dd348fb8d6686ca52d01bed13096897dd37454c93d6a598433

Analysis

user interaction
yes
max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
09/07/2026, 22:22

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General

Target
emuus.pyc
Size 33KB
Sample260709-2aba5aat2j
SHA256 e19011e478a695dd348fb8d6686ca52d01bed13096897dd37454c93d6a598433
MD5 3497f0942e1cbd42d1fa20d49346b0e5
SHA1 a0c3a0230a6c90db9268d5dd8daced17a4f44663
SHA512 a5eac2e1da1aa7f847be9d98e0fb8283c4af9958a6d78c9d9b1be95b24c8b8625350a712bd1bd99088091ea812f519afbb9e3354b15171b58cc4091c0610ad29
SSDEEP 768:6enjEPD3/Ykb1mIY7gOqCxnysDwmUtBMA098o:6enw/YDys0mJl
TLSH
T17CE2F757E5214412FF10F5B950EA4044A3AD6BA3F220C72B354E5279AFDBAB6CEB470C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor 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\CentralProcessor\0\~MHz	Winword.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Winword.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	Winword.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	Winword.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	Winword.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	Winword.exe

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\.pyc	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\pyc_auto_file	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\.pyc\ = "pyc_auto_file"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\pyc_auto_file\shell\edit	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\pyc_auto_file\shell\edit\command\ = "\"C:\\Program Files\\Microsoft Office\\root\\Office16\\Winword.exe\" /n \"%1\""	OpenWith.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\pyc_auto_file\shell\edit\ = "@C:\\Program Files\\Microsoft Office\\root\\VFS\\ProgramFilesCommonX64\\Microsoft Shared\\Office16\\oregres.dll,-1"	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\pyc_auto_file\shell	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-2746394149-3500112804-1243524366-1000_Classes\pyc_auto_file\shell\edit\command	OpenWith.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
5856	Winword.exe
5856	Winword.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4860	OpenWith.exe

Suspicious use of SetWindowsHookEx 34 IoCs

pid	Process
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
4860	OpenWith.exe
5856	Winword.exe
5856	Winword.exe
5856	Winword.exe
5856	Winword.exe
5856	Winword.exe
5856	Winword.exe
5856	Winword.exe
5856	Winword.exe
5856	Winword.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 5856	4860	OpenWith.exe	81

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\emuus.pyc
1⤵
- Modifies registry class
PID:4800

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Program Files\Microsoft Office\root\Office16\Winword.exe
  "C:\Program Files\Microsoft Office\root\Office16\Winword.exe" /n "C:\Users\Admin\AppData\Local\Temp\emuus.pyc"
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:5856

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

gb.xsl

Path C:\Users\Admin\AppData\Local\Temp\TCD824B.tmp\gb.xsl
Size 262KB
SHA256 6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97
MD5 51d32ee5bc7ab811041f799652d26e04
SHA1 412193006aa3ef19e0a57e16acf86b830993024a
SHA512 5fc5d889b0c8e5ef464b76f0c4c9e61bda59b2d1205ac9417cc74d6e9f989fb73d78b4eb3044a1a1e1f2c00ce1ca1bd6d4d07eeadc4108c7b124867711c31810
SSDEEP 6144:JwprAJLR95vtfb8p4bgWPzDCvCmvQursq7vImej/yQzSS1apSiQhHDOruvoVeMUh:N9
TLSH
T19A4458A5E6D9CF144BB1F23FD8B52092EA1DC87B29341D41F1DC733717AE948822B662
MD5 SHA1 SHA512 SSDEEP TLSH

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads