Malware Analysis Report

2025-01-02 07:53

Sample ID 240509-trfceaah31
Target citra-windows-hexrom_com.zip
SHA256 f7b385322c9e308535b014836809969163a4f0e0ea60178c2c80489a2552d95e
Tags
privateloader loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f7b385322c9e308535b014836809969163a4f0e0ea60178c2c80489a2552d95e

Threat Level: Known bad

The file citra-windows-hexrom_com.zip was found to be: Known bad.

Malicious Activity Summary

privateloader loader

Privateloader family

PrivateLoader

Drops desktop.ini file(s)

Unsigned PE

Checks SCSI registry key(s)

Checks processor information in registry

Modifies registry class

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: AddClipboardFormatListener

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-09 16:18

Signatures

Privateloader family

privateloader

Unsigned PE

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Analysis: behavioral1

Detonation Overview

Submitted

2024-05-09 16:17

Reported

2024-05-09 16:50

Platform

win10v2004-20240426-en

Max time kernel

233s

Max time network

204s

Command Line

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\citra-windows-hexrom_com.zip

Signatures

PrivateLoader

loader privateloader

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Admin\Videos\Captures\desktop.ini C:\Windows\system32\svchost.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\ConfigFlags C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\ConfigFlags C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\system32\svchost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\svchost.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400\shell C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\4 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1 = 14002e803accbfb42cdb4c42b0297fe99a87c6410000 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400\shell\open C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\Shell C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400\URL Protocol C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\0 = 5600310000000000a958428610006e696768746c7900400009000400efbea9584186a95842862e00000068690100000003000000000000000000000000000000a10300016e0069006700680074006c007900000016000000 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\0 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\0\NodeSlot = "4" C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400\shell\open\command\ = "C:\\Users\\Admin\\Desktop\\nightly\\citra-qt.exe" C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1162180587-977231257-2194346871-1000\{575F0B5B-140A-488D-99B7-4E8FDB5199ED} C:\Windows\system32\svchost.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 010000000200000000000000ffffffff C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\0\MRUListEx = ffffffff C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400\DefaultIcon C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400\shell\open\command C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\MRUListEx = 0100000000000000ffffffff C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02020202 C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400\ = "URL:Run game 719647875465871400 protocol" C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\discord-719647875465871400\DefaultIcon\ = "C:\\Users\\Admin\\Desktop\\nightly\\citra-qt.exe" C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\MRUListEx = 00000000ffffffff C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\Shell\SniffedFolderType = "Generic" C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
N/A N/A C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\AUDIODG.EXE N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Users\Admin\Desktop\nightly\citra-qt.exe N/A

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\citra-windows-hexrom_com.zip

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Users\Admin\Desktop\nightly\citra.exe

"C:\Users\Admin\Desktop\nightly\citra.exe"

C:\Users\Admin\Desktop\nightly\citra-qt.exe

"C:\Users\Admin\Desktop\nightly\citra-qt.exe"

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService

C:\Windows\system32\AUDIODG.EXE

C:\Windows\system32\AUDIODG.EXE 0x4a4 0x4a0

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
BE 2.17.196.177:443 www.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 177.196.17.2.in-addr.arpa udp
BE 2.17.196.177:443 www.bing.com tcp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 31.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
N/A 127.0.0.1:26760 udp

Files

memory/4036-3-0x00007FF62E3C0000-0x00007FF62F3C0000-memory.dmp

memory/4036-7-0x00007FFA57300000-0x00007FFA57A88000-memory.dmp

memory/4036-6-0x00007FFA57030000-0x00007FFA572FF000-memory.dmp

memory/4036-8-0x00007FFA67BE0000-0x00007FFA67CAF000-memory.dmp

memory/4036-5-0x00007FFA589E0000-0x00007FFA58BA6000-memory.dmp

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

MD5 b0d27eaec71f1cd73b015f5ceeb15f9d
SHA1 62264f8b5c2f5034a1e4143df6e8c787165fbc2f
SHA256 86d9f822aeb989755fac82929e8db369b3f5f04117ef96fd76e3d5f920a501d2
SHA512 7b5c9783a0a14b600b156825639d24cbbc000f5066c48ce9fecc195255603fc55129aaaca336d7ce6ad4e941d5492b756562f2c7a1d151fcfc2dabac76f3946c