Malware Analysis Report

2024-11-15 09:56

Sample ID 241110-btlm4awfkn
Target a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c
SHA256 a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c
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

a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c

Threat Level: Known bad

The file a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c was found to be: Known bad.

Malicious Activity Summary

healer discovery dropper evasion persistence trojan

Detects Healer an antivirus disabler dropper

Healer

Modifies Windows Defender Real-time Protection settings

Healer family

Executes dropped EXE

Windows security modification

Adds Run key to start application

Launches sc.exe

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 01:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 01:26

Reported

2024-11-10 01:28

Platform

win10v2004-20241007-en

Max time kernel

138s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c.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\DisableIOAVProtection = "1" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.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\111883107.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\270967542.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\111883107.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\270967542.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\270967542.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\270967542.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\270967542.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.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\111883107.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\111883107.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\270967542.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\111883107.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\270967542.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\a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c.exe N/A

Launches sc.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\sc.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\a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\270967542.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\270967542.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c.exe

"C:\Users\Admin\AppData\Local\Temp\a7ebada9a5ecc2c54db4d93d0ab8d4f65e835ac82e8920b198d49aa037b97d2c.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\270967542.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\270967542.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3996 -ip 3996

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3996 -s 1084

C:\Windows\system32\sc.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 106.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\111883107.exe

MD5 2b71f4b18ac8214a2bff547b6ce2f64f
SHA1 b8f2f25139a7b2e8d5e8fbc024eb5cac518bc6a5
SHA256 f7eedf3aec775a62c265d1652686b30a8a45a953523e2fb3cfc1fac3c6a66fbc
SHA512 33518eff768610bf54f9888d9d0d746b0c3500dc5f2b8fd5f1641d5a264f657a8311b40364f70932512581183b244fec3feb535e21c13e0ec8adec9994175177

memory/3512-7-0x000000007449E000-0x000000007449F000-memory.dmp

memory/3512-8-0x00000000049F0000-0x0000000004A0A000-memory.dmp

memory/3512-9-0x0000000004B90000-0x0000000005134000-memory.dmp

memory/3512-10-0x0000000074490000-0x0000000074C40000-memory.dmp

memory/3512-11-0x0000000004AC0000-0x0000000004AD8000-memory.dmp

memory/3512-12-0x0000000074490000-0x0000000074C40000-memory.dmp

memory/3512-41-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-39-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-37-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-35-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-33-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-31-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-29-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-27-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-25-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-23-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-21-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-19-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-17-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-15-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-14-0x0000000004AC0000-0x0000000004AD3000-memory.dmp

memory/3512-13-0x0000000074490000-0x0000000074C40000-memory.dmp

memory/3512-42-0x000000007449E000-0x000000007449F000-memory.dmp

memory/3512-43-0x0000000074490000-0x0000000074C40000-memory.dmp

memory/3512-45-0x0000000074490000-0x0000000074C40000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\270967542.exe

MD5 2c429d972d18f7c2258b90138bdd37d4
SHA1 4cfdfc5e5872486e2e6268e650c72dfec37f6614
SHA256 08d91153df3e0853d777337eb3bf8e378e14234f92a72f5abe8bfe67b75ce9af
SHA512 7a109a0b15600f92dea239c48ea39cb4d14482f192b48a1a95a48b3b9e44838501274d67266cd3fc71dc0da525fb942ad775f87a5e6af179003f1b86d4d78780

memory/3996-50-0x0000000002BA0000-0x0000000002CA0000-memory.dmp

memory/3996-51-0x0000000000400000-0x0000000000430000-memory.dmp

memory/3996-80-0x0000000000400000-0x0000000002B9D000-memory.dmp

memory/3996-81-0x0000000002BA0000-0x0000000002CA0000-memory.dmp

memory/3996-83-0x0000000000400000-0x0000000000430000-memory.dmp

memory/3996-82-0x0000000000400000-0x0000000002B9D000-memory.dmp

memory/3996-85-0x0000000000400000-0x0000000002B9D000-memory.dmp

memory/3996-86-0x0000000000400000-0x0000000000430000-memory.dmp