Malware Analysis Report

2024-12-07 11:35

Sample ID 241113-vvfm1szjap
Target 4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcdeN.exe
SHA256 4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcde
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

4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcde

Threat Level: Known bad

The file 4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcdeN.exe was found to be: Known bad.

Malicious Activity Summary

healer discovery dropper evasion persistence trojan

Healer

Healer family

Modifies Windows Defender Real-time Protection settings

Detects Healer an antivirus disabler dropper

Executes dropped EXE

Windows security modification

Adds Run key to start application

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 17:18

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 17:18

Reported

2024-11-13 17:20

Platform

win10v2004-20241007-en

Max time kernel

106s

Max time network

108s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcdeN.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\192277824.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\205719046.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\205719046.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\205719046.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\205719046.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\192277824.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\192277824.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\192277824.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\192277824.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\192277824.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\205719046.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\192277824.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\205719046.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\192277824.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\205719046.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\192277824.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\4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcdeN.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\4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcdeN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\192277824.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\205719046.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\192277824.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\205719046.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcdeN.exe

"C:\Users\Admin\AppData\Local\Temp\4872ea2fe5a866b5b57ca8da7e89af4c55a5dbc250d775af312a5dd08070fcdeN.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\192277824.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\192277824.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\205719046.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\205719046.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3620 -ip 3620

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 1080

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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 67.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\192277824.exe

MD5 2b71f4b18ac8214a2bff547b6ce2f64f
SHA1 b8f2f25139a7b2e8d5e8fbc024eb5cac518bc6a5
SHA256 f7eedf3aec775a62c265d1652686b30a8a45a953523e2fb3cfc1fac3c6a66fbc
SHA512 33518eff768610bf54f9888d9d0d746b0c3500dc5f2b8fd5f1641d5a264f657a8311b40364f70932512581183b244fec3feb535e21c13e0ec8adec9994175177

memory/4800-7-0x0000000073BDE000-0x0000000073BDF000-memory.dmp

memory/4800-8-0x0000000000760000-0x000000000077A000-memory.dmp

memory/4800-9-0x0000000073BD0000-0x0000000074380000-memory.dmp

memory/4800-10-0x0000000004C60000-0x0000000005204000-memory.dmp

memory/4800-11-0x0000000002530000-0x0000000002548000-memory.dmp

memory/4800-12-0x0000000073BD0000-0x0000000074380000-memory.dmp

memory/4800-28-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-40-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-41-0x0000000073BD0000-0x0000000074380000-memory.dmp

memory/4800-38-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-36-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-35-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-32-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-30-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-18-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-16-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-14-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-13-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-26-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-24-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-22-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-20-0x0000000002530000-0x0000000002543000-memory.dmp

memory/4800-42-0x0000000073BDE000-0x0000000073BDF000-memory.dmp

memory/4800-43-0x0000000073BD0000-0x0000000074380000-memory.dmp

memory/4800-45-0x0000000073BD0000-0x0000000074380000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\205719046.exe

MD5 aa6bd6f6345a889e40e460bff3d75a90
SHA1 da1452c2058fd2784b445a4bfb266e66c2f21d4b
SHA256 323df43ae5b0a0fe8a2396643941b29f8c868ad9caf0ec7334b5787ec4e9bcaa
SHA512 530fce187f1d43ec836ab9556b1bf5877b63ef3ad3ef4a44847b5d5b0b8d5e6de8759167f408a7cad46a43d723afaebbec0093e4e4936b91424282e5c4d5af3e

memory/3620-50-0x0000000002E60000-0x0000000002F60000-memory.dmp

memory/3620-51-0x0000000002DF0000-0x0000000002E1D000-memory.dmp

memory/3620-52-0x0000000000400000-0x0000000000430000-memory.dmp

memory/3620-81-0x0000000002E60000-0x0000000002F60000-memory.dmp

memory/3620-82-0x0000000002DF0000-0x0000000002E1D000-memory.dmp

memory/3620-84-0x0000000000400000-0x0000000000430000-memory.dmp

memory/3620-83-0x0000000000400000-0x0000000002B9D000-memory.dmp

memory/3620-87-0x0000000000400000-0x0000000000430000-memory.dmp

memory/3620-86-0x0000000000400000-0x0000000002B9D000-memory.dmp