Malware Analysis Report

2024-10-16 03:50

Sample ID 240501-cyf4vafh44
Target b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d
SHA256 b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d
Tags
healer dropper evasion 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

b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d

Threat Level: Known bad

The file b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d was found to be: Known bad.

Malicious Activity Summary

healer dropper evasion trojan

Healer

Detects Healer an antivirus disabler dropper

Modifies Windows Defender Real-time Protection settings

Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

Windows security modification

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-01 02:28

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-05-01 02:28

Reported

2024-05-01 02:31

Platform

win7-20240221-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe"

Signatures

Detects Healer an antivirus disabler dropper

Description Indicator Process Target
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Healer

dropper healer

Modifies Windows Defender Real-time Protection settings

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A

Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

Description Indicator Process Target
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Windows security modification

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe

"C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe"

Network

N/A

Files

memory/2188-1-0x00000000008A0000-0x00000000009A0000-memory.dmp

memory/2188-3-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2188-2-0x0000000000230000-0x000000000025D000-memory.dmp

memory/2188-4-0x00000000005F0000-0x000000000060A000-memory.dmp

memory/2188-5-0x00000000742B0000-0x000000007499E000-memory.dmp

memory/2188-7-0x00000000022B0000-0x00000000022F0000-memory.dmp

memory/2188-6-0x00000000022B0000-0x00000000022F0000-memory.dmp

memory/2188-8-0x0000000000620000-0x0000000000638000-memory.dmp

memory/2188-10-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-9-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-12-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-36-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-34-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-32-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-30-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-28-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-26-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-24-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-22-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-20-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-18-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-16-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-15-0x0000000000620000-0x0000000000633000-memory.dmp

memory/2188-38-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2188-39-0x00000000742B0000-0x000000007499E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-01 02:28

Reported

2024-05-01 02:31

Platform

win10v2004-20240419-en

Max time kernel

141s

Max time network

104s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe"

Signatures

Detects Healer an antivirus disabler dropper

Description Indicator Process Target
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Healer

dropper healer

Modifies Windows Defender Real-time Protection settings

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A

Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

Description Indicator Process Target
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Windows security modification

evasion trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe

"C:\Users\Admin\AppData\Local\Temp\b74a498bb5f6e584e843e22186c25628e7a99618aedad1f4591eeb281e65928d.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2568 -ip 2568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2568 -s 948

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 133.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 17.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 134.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 14.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/2568-1-0x0000000000690000-0x0000000000790000-memory.dmp

memory/2568-2-0x0000000001FA0000-0x0000000001FCD000-memory.dmp

memory/2568-3-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2568-4-0x0000000004AD0000-0x0000000004AEA000-memory.dmp

memory/2568-5-0x0000000074780000-0x0000000074F30000-memory.dmp

memory/2568-6-0x0000000004CB0000-0x0000000004CC0000-memory.dmp

memory/2568-7-0x0000000004CB0000-0x0000000004CC0000-memory.dmp

memory/2568-8-0x0000000004CC0000-0x0000000005264000-memory.dmp

memory/2568-9-0x0000000004B30000-0x0000000004B48000-memory.dmp

memory/2568-33-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-37-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-35-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-31-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-29-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-27-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-26-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-23-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-21-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-17-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-13-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-19-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-15-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-11-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-10-0x0000000004B30000-0x0000000004B43000-memory.dmp

memory/2568-40-0x0000000000400000-0x0000000000455000-memory.dmp

memory/2568-41-0x0000000074780000-0x0000000074F30000-memory.dmp