Malware Analysis Report

2025-04-03 14:17

Sample ID 241109-1tmylatbjf
Target 4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d
SHA256 4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d
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

4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d

Threat Level: Known bad

The file 4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d was found to be: Known bad.

Malicious Activity Summary

healer discovery dropper evasion persistence trojan

Healer

Healer family

Detects Healer an antivirus disabler dropper

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 behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 21:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 21:56

Reported

2024-11-09 21:59

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d.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
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.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\c10wa93.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\c10wa93.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b1058OO.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\b1058OO.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\b1058OO.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\b1058OO.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\c10wa93.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\c10wa93.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\c10wa93.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\b1058OO.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b1058OO.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b1058OO.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.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\b1058OO.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.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\4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d.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\4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b1058OO.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d.exe

"C:\Users\Admin\AppData\Local\Temp\4a0db7af638dba033f0b2e4bde322e8f505b8823f24d9c5655745a6ab438b15d.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b1058OO.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b1058OO.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4812 -ip 4812

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1080

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\b1058OO.exe

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

memory/1652-7-0x00007FFE75B93000-0x00007FFE75B95000-memory.dmp

memory/1652-8-0x0000000000780000-0x000000000078A000-memory.dmp

memory/1652-9-0x00007FFE75B93000-0x00007FFE75B95000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c10wa93.exe

MD5 c71311b2e2a54cc259841ca90ab54065
SHA1 74b6266612a0d4228389880390baae62a180d33f
SHA256 d9d8fd03a4cecf2fee653829f2339bbc0f71f4851f5b94b558f9f608dd22c905
SHA512 b58e289b122ad3bb72d60cea505df1ea5c2431ee3675db73b069eb2100303c5250dd75705fec8db991edb818324c1455633ad81f9ff507dbe8b2b05871834404

memory/4812-15-0x0000000002E30000-0x0000000002F30000-memory.dmp

memory/4812-16-0x0000000000400000-0x0000000000430000-memory.dmp

memory/4812-17-0x0000000000400000-0x0000000002B03000-memory.dmp

memory/4812-18-0x0000000004980000-0x000000000499A000-memory.dmp

memory/4812-19-0x00000000071E0000-0x0000000007784000-memory.dmp

memory/4812-20-0x0000000004C70000-0x0000000004C88000-memory.dmp

memory/4812-21-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-22-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-24-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-26-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-48-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-46-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-45-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-42-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-38-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-37-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-34-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-32-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-30-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-40-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-28-0x0000000004C70000-0x0000000004C82000-memory.dmp

memory/4812-49-0x0000000002E30000-0x0000000002F30000-memory.dmp

memory/4812-50-0x0000000000400000-0x0000000000430000-memory.dmp

memory/4812-51-0x0000000000400000-0x0000000002B03000-memory.dmp

memory/4812-53-0x0000000000400000-0x0000000002B03000-memory.dmp

memory/4812-54-0x0000000000400000-0x0000000000430000-memory.dmp