Malware Analysis Report

2025-03-14 22:31

Sample ID 240304-q9fjcabg9z
Target b24c0f35024293aba2c08d62ee4b494f
SHA256 675094bb85363d821052301a2f487fd0981d2df2ba36ca6529a31bbcf727dab0
Tags
evasion persistence trojan
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

675094bb85363d821052301a2f487fd0981d2df2ba36ca6529a31bbcf727dab0

Threat Level: Known bad

The file b24c0f35024293aba2c08d62ee4b494f was found to be: Known bad.

Malicious Activity Summary

evasion persistence trojan

Windows security bypass

UAC bypass

Disables taskbar notifications via registry modification

Windows security modification

Adds Run key to start application

Checks whether UAC is enabled

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

System policy modification

Suspicious use of SetWindowsHookEx

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-04 13:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-04 13:57

Reported

2024-03-04 14:00

Platform

win7-20240221-en

Max time kernel

149s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe"

Signatures

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A

Windows security bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A

Disables taskbar notifications via registry modification

evasion

Windows security modification

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\svc C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\DisableAntiSpyware = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Security Center\svc C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\A2DBCF470045EF4917763CF5F875EF60 = "C:\\ProgramData\\A2DBCF470045EF4917763CF5F875EF60\\A2DBCF470045EF4917763CF5F875EF60.exe" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A

System policy modification

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe

"C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe"

Network

Country Destination Domain Proto
HK 112.121.178.189:80 112.121.178.189 tcp
HK 112.121.178.189:80 112.121.178.189 tcp

Files

memory/2368-0-0x0000000000230000-0x0000000000234000-memory.dmp

memory/2368-2-0x0000000000240000-0x0000000000243000-memory.dmp

memory/2368-1-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2368-3-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2368-8-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2368-11-0x0000000000400000-0x00000000004CA000-memory.dmp

memory/2368-16-0x0000000000400000-0x00000000004CA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-04 13:57

Reported

2024-03-04 14:00

Platform

win10v2004-20240226-en

Max time kernel

136s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe

"C:\Users\Admin\AppData\Local\Temp\b24c0f35024293aba2c08d62ee4b494f.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3572 -ip 3572

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 516

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4128 --field-trial-handle=2268,i,8796662530135712346,11409037572378858775,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 187.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 182.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 172.217.16.234:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 234.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 205.178.17.96.in-addr.arpa udp

Files

memory/3572-0-0x0000000002220000-0x0000000002224000-memory.dmp

memory/3572-1-0x0000000000400000-0x00000000004CA000-memory.dmp