Malware Analysis Report

2024-12-06 02:57

Sample ID 241110-chewvaxcrd
Target d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533dN
SHA256 d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533d
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

d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533d

Threat Level: Known bad

The file d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533dN 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

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 02:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 02:04

Reported

2024-11-10 02:06

Platform

win10v2004-20241007-en

Max time kernel

92s

Max time network

93s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533dN.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\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pro5737.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\pro5737.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\pro5737.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\qu4497.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\qu4497.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\pro5737.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\pro5737.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\pro5737.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.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\qu4497.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\qu4497.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\qu4497.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pro5737.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.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\pro5737.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.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\d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533dN.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\d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533dN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pro5737.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533dN.exe

"C:\Users\Admin\AppData\Local\Temp\d040c449b3ff480a9f6314a994bc606a1ec5ba5deccb73cfdcfb6fd990cf533dN.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pro5737.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pro5737.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1072 -ip 1072

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 1092

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\pro5737.exe

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

memory/1668-7-0x00007FFA13A53000-0x00007FFA13A55000-memory.dmp

memory/1668-8-0x0000000000EE0000-0x0000000000EEA000-memory.dmp

memory/1668-9-0x00007FFA13A53000-0x00007FFA13A55000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\qu4497.exe

MD5 36ded638075ab34f35b8b69450fcd6f3
SHA1 f28bc9ff1bfbe14132e9b257f39528c0971457bd
SHA256 eb4d6c8ff89e35d3907a7e1ddc0c69044ab7468989d03823e75f77ce4cd79557
SHA512 0a966390566024a6f9409cff958f1aca3c7b56d08c1289943660cb94a540328558ccf6780d02ff90e797ebd2ac2139cc3463fca05c4aadc440913996dc103355

memory/1072-15-0x0000000000800000-0x0000000000900000-memory.dmp

memory/1072-16-0x0000000000A90000-0x0000000000ABD000-memory.dmp

memory/1072-17-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1072-18-0x0000000002720000-0x000000000273A000-memory.dmp

memory/1072-19-0x0000000004EF0000-0x0000000005494000-memory.dmp

memory/1072-20-0x0000000004DF0000-0x0000000004E08000-memory.dmp

memory/1072-21-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-28-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-48-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-44-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-42-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-40-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-38-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-36-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-34-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-32-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-22-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-30-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-26-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-24-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-46-0x0000000004DF0000-0x0000000004E02000-memory.dmp

memory/1072-49-0x0000000000800000-0x0000000000900000-memory.dmp

memory/1072-50-0x0000000000A90000-0x0000000000ABD000-memory.dmp

memory/1072-52-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1072-51-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1072-55-0x0000000000400000-0x0000000000430000-memory.dmp

memory/1072-54-0x0000000000400000-0x000000000071D000-memory.dmp