Malware Analysis Report

2024-12-06 02:40

Sample ID 241110-a9kv3awbrn
Target 9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb
SHA256 9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb
Tags
healer discovery dropper 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 Overview

score
10/10

SHA256

9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb

Threat Level: Known bad

The file 9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb was found to be: Known bad.

Malicious Activity Summary

healer discovery dropper evasion persistence trojan

Healer

Detects Healer an antivirus disabler dropper

Healer family

Modifies Windows Defender Real-time Protection settings

Executes dropped EXE

Windows security modification

Adds Run key to start application

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 00:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 00:54

Reported

2024-11-10 00:57

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb.exe"

Signatures

Detects Healer an antivirus disabler dropper

Description Indicator Process Target
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Healer

dropper healer

Healer family

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\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.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\IXP000.TMP\mjR84Iy.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\IXP000.TMP\mjR84Iy.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\IXP000.TMP\mjR84Iy.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.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\IXP000.TMP\mjR84Iy.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\IXP000.TMP\mjR84Iy.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb.exe

"C:\Users\Admin\AppData\Local\Temp\9b6d1705cba912376013d0375a143968cc8f7f2fb8ad1c0993e5c671bbd774eb.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2904 -ip 2904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 1016

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\kRz20jv.exe

MD5 7e93bacbbc33e6652e147e7fe07572a0
SHA1 421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256 850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512 250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91

memory/3608-7-0x00007FF887623000-0x00007FF887625000-memory.dmp

memory/3608-8-0x00000000002E0000-0x00000000002EA000-memory.dmp

memory/3608-9-0x00007FF887623000-0x00007FF887625000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\mjR84Iy.exe

MD5 2338c84711b756237e614c3869cf6100
SHA1 6146eace912945070cb084fe3839c8d2dc27c403
SHA256 fbfd8bd7e7ff54ce43c209c34a9959ad1abe7325209756decc04e3d9a44ff87b
SHA512 24bd3e70fc0ac61f6fcc432de5e93ac38c66eb3fb0e9b09337acc526873dd42f779f2741761ffb1677936e8f219f3c3b683c9476d8ab604803795fc323c7bae6

memory/2904-15-0x0000000000740000-0x0000000000840000-memory.dmp

memory/2904-16-0x0000000000700000-0x000000000072D000-memory.dmp

memory/2904-17-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2904-18-0x0000000002420000-0x000000000243A000-memory.dmp

memory/2904-19-0x0000000004D80000-0x0000000005324000-memory.dmp

memory/2904-20-0x00000000027C0000-0x00000000027D8000-memory.dmp

memory/2904-21-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-30-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-48-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-44-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-42-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-40-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-38-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-36-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-34-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-32-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-28-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-26-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-24-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-22-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-46-0x00000000027C0000-0x00000000027D2000-memory.dmp

memory/2904-49-0x0000000000740000-0x0000000000840000-memory.dmp

memory/2904-50-0x0000000000700000-0x000000000072D000-memory.dmp

memory/2904-52-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2904-51-0x0000000000400000-0x000000000057B000-memory.dmp

memory/2904-55-0x0000000000400000-0x0000000000430000-memory.dmp

memory/2904-54-0x0000000000400000-0x000000000057B000-memory.dmp