f6e85a09d34fee8569e913af2a11addf2a6a640e22f2a92e691576bbc89de411

Analysis

max time kernel
159s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2023, 00:24

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General

Target

Undertale/UNDERTALE.exe
Size

3.6MB
MD5

93d87952773a2bb59a8667d0bc06c2c0
SHA1

480c87f42e8ecbcde1104f4a61de5dee6a9cb3c5
SHA256

9ec41f5094544c938fc075f5506c089d0c1e11fb93afba79a196981bef81d19b
SHA512

d9fce47e5c037e4954437c95abea6959e39c91d0bcd596f1c3267e5c09e5a0defade4c63617609b5386879bcae06e3c60e909fcf2476e250bc960eea0c2d1c6d
SSDEEP

49152:LKmEDcfY7y7tinhmShHrfh/mX2KiKwmFT7MvTyA:y7K6HrfdmX2KiUFT7M2A

Score

6^/10

Malware Config

Signatures

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Videos\Captures\desktop.ini	svchost.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-144354903-2550862337-1367551827-1000\{EDAF3DE4-A436-4AC2-BF75-975D0B127A16}	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4704	UNDERTALE.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1836	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1836	AUDIODG.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2196	OpenWith.exe
4704	UNDERTALE.exe

C:\Users\Admin\AppData\Local\Temp\Undertale\UNDERTALE.exe
"C:\Users\Admin\AppData\Local\Temp\Undertale\UNDERTALE.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:4704

C:\Windows\System32\GameBarPresenceWriter.exe
"C:\Windows\System32\GameBarPresenceWriter.exe" -ServerName:Windows.Gaming.GameBar.Internal.PresenceWriterServer
1⤵
PID:1068

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:2196

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
1⤵
- Drops desktop.ini file(s)
- Checks processor information in registry
- Modifies registry class
PID:4672

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x33c 0x410
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1836

Network

MITRE ATT&CK Enterprise v6

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

Replay Monitor

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Downloads

C:\Users\Admin\Videos\Captures\desktop.ini

Filesize
190B

MD5
b0d27eaec71f1cd73b015f5ceeb15f9d

SHA1
62264f8b5c2f5034a1e4143df6e8c787165fbc2f

SHA256
86d9f822aeb989755fac82929e8db369b3f5f04117ef96fd76e3d5f920a501d2

SHA512
7b5c9783a0a14b600b156825639d24cbbc000f5066c48ce9fecc195255603fc55129aaaca336d7ce6ad4e941d5492b756562f2c7a1d151fcfc2dabac76f3946c

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