Malware Analysis Report

2025-05-28 18:49

Sample ID 241110-d9ynpsyflq
Target 918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309N
SHA256 918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309
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

918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309

Threat Level: Known bad

The file 918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309N was found to be: Known bad.

Malicious Activity Summary

healer discovery dropper evasion persistence trojan

Modifies Windows Defender Real-time Protection settings

Detects Healer an antivirus disabler dropper

Healer

Healer family

Executes dropped EXE

Windows security modification

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 03:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 03:43

Reported

2024-11-10 03:45

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309N.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\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.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\v2423Rb.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\v2423Rb.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\tz1588.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\tz1588.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\tz1588.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.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\v2423Rb.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tz1588.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\tz1588.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\tz1588.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\v2423Rb.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tz1588.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.exe N/A

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\IXP000.TMP\v2423Rb.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tz1588.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\918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309N.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\918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tz1588.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309N.exe

"C:\Users\Admin\AppData\Local\Temp\918fad4266d1defe41de8a94632d6ba715de317222af667b20b4a67361c05309N.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tz1588.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tz1588.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1596 -ip 1596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 1096

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tz1588.exe

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

memory/4424-7-0x00007FFCC5BC3000-0x00007FFCC5BC5000-memory.dmp

memory/4424-8-0x0000000000990000-0x000000000099A000-memory.dmp

memory/4424-9-0x00007FFCC5BC3000-0x00007FFCC5BC5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v2423Rb.exe

MD5 4ff666e60b31dea8a7278acfb4a24886
SHA1 18ddf43d7c177aa967b6303e83c3af9a872ab1b4
SHA256 0162b0c7aa23745598a97d375fbef0bf649e5eaebccfa3f75d0ded1c9e1e2f6d
SHA512 ecd81473060309b4f13bfcfd61a2a29c98920a2b24d4269697b03b2f176d0fad6da7ebe64cce6722c73d65a053bb4501793e6a84ee9734663662d93c0251855c

memory/1596-15-0x00000000006B0000-0x00000000007B0000-memory.dmp

memory/1596-16-0x0000000000580000-0x00000000005AD000-memory.dmp

memory/1596-17-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1596-18-0x00000000021B0000-0x00000000021CA000-memory.dmp

memory/1596-19-0x0000000004C80000-0x0000000005224000-memory.dmp

memory/1596-20-0x0000000002360000-0x0000000002378000-memory.dmp

memory/1596-21-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-28-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-46-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-43-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-40-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-39-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-36-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-34-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-32-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-30-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-26-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-24-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-48-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-22-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-44-0x0000000002360000-0x0000000002372000-memory.dmp

memory/1596-49-0x00000000006B0000-0x00000000007B0000-memory.dmp

memory/1596-50-0x0000000000580000-0x00000000005AD000-memory.dmp

memory/1596-51-0x0000000000400000-0x00000000004A8000-memory.dmp

memory/1596-52-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1596-54-0x0000000000400000-0x00000000004A8000-memory.dmp

memory/1596-55-0x0000000000400000-0x0000000000430000-memory.dmp