Malware Analysis Report

2024-09-11 09:06

Sample ID 240626-d76arswakk
Target sercmenupaid.exe
SHA256 abff64bee76b35b88a91b10066fe8757c4778ad209b103967c813e254205c34c
Tags
discordrat persistence rat rootkit stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

abff64bee76b35b88a91b10066fe8757c4778ad209b103967c813e254205c34c

Threat Level: Known bad

The file sercmenupaid.exe was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discord RAT

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-26 03:40

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 03:39

Reported

2024-06-26 03:43

Platform

win11-20240508-en

Max time kernel

163s

Max time network

168s

Command Line

"C:\Users\Admin\AppData\Local\Temp\sercmenupaid.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\SoundPadV2.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (data) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\1\MRUListEx = ffffffff C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\1 C:\Windows\system32\OpenWith.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\Shell\SniffedFolderType = "Generic" C:\Windows\system32\OpenWith.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\1 = 8c00310000000000a858897b110050524f4752417e310000740009000400efbec5525961a858897b2e0000003f0000000000010000000000000000004a0000000000ab7d4100500072006f006700720061006d002000460069006c0065007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100370038003100000018000000 C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12 C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616257" C:\Windows\system32\OpenWith.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202020202020202020202 C:\Windows\system32\OpenWith.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 0100000000000000ffffffff C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1 C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" C:\Windows\system32\OpenWith.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 C:\Windows\system32\OpenWith.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1 C:\Windows\system32\OpenWith.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\MRUListEx = 0100000000000000ffffffff C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\1\1\NodeSlot = "12" C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7} C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" C:\Windows\system32\OpenWith.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\Shell C:\Windows\system32\OpenWith.exe N/A
Set value (data) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202020202020202020202 C:\Windows\system32\OpenWith.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\12\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" C:\Windows\system32\OpenWith.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\RarSFX0\SoundPadV2.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\svchost.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\svchost.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\svchost.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\svchost.exe N/A
Token: 35 N/A C:\Windows\system32\svchost.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3252 wrote to memory of 5092 N/A C:\Users\Admin\AppData\Local\Temp\sercmenupaid.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\SoundPadV2.exe
PID 3252 wrote to memory of 5092 N/A C:\Users\Admin\AppData\Local\Temp\sercmenupaid.exe C:\Users\Admin\AppData\Local\Temp\RarSFX0\SoundPadV2.exe

Processes

C:\Users\Admin\AppData\Local\Temp\sercmenupaid.exe

"C:\Users\Admin\AppData\Local\Temp\sercmenupaid.exe"

C:\Users\Admin\AppData\Local\Temp\RarSFX0\SoundPadV2.exe

"C:\Users\Admin\AppData\Local\Temp\RarSFX0\SoundPadV2.exe"

C:\Windows\System32\rundll32.exe

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

C:\Windows\system32\OpenWith.exe

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

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k SDRSVC

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
GB 184.28.176.104:443 tcp
US 8.8.8.8:53 browser.pipe.aria.microsoft.com udp
GB 184.28.176.104:443 tcp
GB 184.28.176.104:443 tcp
GB 184.28.176.115:443 tcp
GB 184.28.176.115:443 tcp
GB 184.28.176.115:443 tcp
US 8.8.8.8:53 browser.pipe.aria.microsoft.com udp
GB 184.28.176.115:443 tcp

Files

C:\Users\Admin\AppData\Local\Temp\RarSFX0\SoundPadV2.exe

MD5 467a0a4e420c4412ee6024df672613d9
SHA1 799c389bbf17589cab3a1cb69027efab6c6b1d18
SHA256 55d75647f41686e7f04dd1d648656aeca8166891134184d40967d130fb0f2e5b
SHA512 e861ecac500a364d4179a441aac0adbac51572aaa2514ce4cc846f64091c93e3acffb2fb638a7b16ca23e1ec558118d4f12b5ad92813e78dae91e48cedd4cd7e

memory/5092-14-0x00000231A7810000-0x00000231A7828000-memory.dmp

memory/5092-15-0x00007FFD081D3000-0x00007FFD081D5000-memory.dmp

memory/5092-16-0x00000231C1EB0000-0x00000231C2072000-memory.dmp

memory/5092-17-0x00007FFD081D0000-0x00007FFD08C92000-memory.dmp

memory/5092-18-0x00007FFD081D0000-0x00007FFD08C92000-memory.dmp