d0bb3ed61017f405595cf350fef23cdf278037b8a38e4408a8fef44d0c63e2cd

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2024, 17:35

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General

Target

Undertale Yellow.exe
Size

8.4MB
MD5

2610a3f58304de377da56c221fc68d6b
SHA1

81d3b6404c0c7230daa8f5b30c0022b62a414406
SHA256

d0bb3ed61017f405595cf350fef23cdf278037b8a38e4408a8fef44d0c63e2cd
SHA512

4ba4fa62b61c1c316c8b4a720fc4403efc0dbf5a923d5838c5175c531255ed14a940f0d8728b7f5ad2836722346ec06326d2116c406bbce44a3fc35809e47e79
SSDEEP

196608:Wqk58ZHFjRztVqI0duoxvmDQcXZdHmlVRThUV+V5Ve5mfLZfxWXtHi851BzmC7Ax:3ZHF93dU

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

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 4 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
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 35 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	Undertale Yellow.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\IconSize = "16"	Undertale Yellow.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}"	Undertale Yellow.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	Undertale Yellow.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1092616257"	Undertale Yellow.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupView = "0"	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings	Undertale Yellow.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	Undertale Yellow.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	Undertale Yellow.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Undertale Yellow.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByDirection = "1"	Undertale Yellow.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2878641211-696417878-3864914810-1000\{47192539-7E30-4E37-8983-0E118AE3334A}	svchost.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}	Undertale Yellow.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000	Undertale Yellow.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000	Undertale Yellow.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:PID = "0"	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	Undertale Yellow.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	Undertale Yellow.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	Undertale Yellow.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	Undertale Yellow.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents"	Undertale Yellow.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1"	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	Undertale Yellow.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2878641211-696417878-3864914810-1000\{FB5344C6-097C-4928-9E18-1D989C6F1A09}	svchost.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000	Undertale Yellow.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	Undertale Yellow.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Mode = "4"	Undertale Yellow.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\LogicalViewMode = "1"	Undertale Yellow.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2996	OpenWith.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4732	Undertale Yellow.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4732	Undertale Yellow.exe
2996	OpenWith.exe
4732	Undertale Yellow.exe
4732	Undertale Yellow.exe
4732	Undertale Yellow.exe
4732	Undertale Yellow.exe
4732	Undertale Yellow.exe

C:\Users\Admin\AppData\Local\Temp\Undertale Yellow.exe
"C:\Users\Admin\AppData\Local\Temp\Undertale Yellow.exe"
1⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:4732

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2996

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:2132

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
1⤵
- Checks processor information in registry
- Modifies registry class
PID:2188

Network

MITRE ATT&CK Enterprise v15

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

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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