Malware Analysis Report

2024-10-16 03:50

Sample ID 240504-cabjfsdc65
Target b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f
SHA256 b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f

Threat Level: Known bad

The file b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f was found to be: Known bad.

Malicious Activity Summary

healer dropper evasion trojan

Detects Healer an antivirus disabler dropper

Modifies Windows Defender Real-time Protection settings

Healer

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

Windows security modification

Launches sc.exe

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-04 01:51

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral2

Detonation Overview

Submitted

2024-05-04 01:51

Reported

2024-05-04 01:54

Platform

win10v2004-20240419-en

Max time kernel

133s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.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\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.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\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.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\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.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\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.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\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.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\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A

Launches sc.exe

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe

"C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4052 -ip 4052

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 884

C:\Windows\system32\sc.exe

C:\Windows\system32\sc.exe start wuauserv

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 55.36.223.20.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 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 48.251.17.2.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

Files

memory/4052-1-0x0000000000510000-0x0000000000610000-memory.dmp

memory/4052-3-0x0000000000400000-0x0000000000430000-memory.dmp

memory/4052-2-0x00000000020E0000-0x000000000210D000-memory.dmp

memory/4052-4-0x0000000000400000-0x00000000004CD000-memory.dmp

memory/4052-5-0x00000000023D0000-0x00000000023EA000-memory.dmp

memory/4052-6-0x0000000004CA0000-0x0000000005244000-memory.dmp

memory/4052-7-0x0000000004BA0000-0x0000000004BB8000-memory.dmp

memory/4052-27-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-33-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-31-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-29-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-25-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-23-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-21-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-35-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-19-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-18-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-15-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-13-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-11-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-9-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-8-0x0000000004BA0000-0x0000000004BB3000-memory.dmp

memory/4052-38-0x0000000000400000-0x00000000004CD000-memory.dmp

memory/4052-39-0x0000000000400000-0x0000000000430000-memory.dmp

memory/4052-40-0x00000000020E0000-0x000000000210D000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-04 01:51

Reported

2024-05-04 01:54

Platform

win7-20240215-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.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\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.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\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe

"C:\Users\Admin\AppData\Local\Temp\b1f32f0f87a005e43c6e2a02991c465234987aa76046e5a5002714a50098f08f.exe"

Network

N/A

Files

memory/1268-1-0x0000000000540000-0x0000000000640000-memory.dmp

memory/1268-2-0x00000000002A0000-0x00000000002CD000-memory.dmp

memory/1268-3-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1268-4-0x0000000000400000-0x00000000004CD000-memory.dmp

memory/1268-5-0x0000000000390000-0x00000000003AA000-memory.dmp

memory/1268-6-0x0000000000520000-0x0000000000538000-memory.dmp

memory/1268-12-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-7-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-20-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-8-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-30-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-14-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-18-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-26-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-34-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-32-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-28-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-24-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-22-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-16-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-10-0x0000000000520000-0x0000000000533000-memory.dmp

memory/1268-35-0x0000000000540000-0x0000000000640000-memory.dmp

memory/1268-38-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1268-37-0x00000000002A0000-0x00000000002CD000-memory.dmp

memory/1268-36-0x0000000000400000-0x00000000004CD000-memory.dmp