Malware Analysis Report

2024-12-06 02:59

Sample ID 241110-ch1hjszncm
Target 277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23N
SHA256 277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23
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

277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23

Threat Level: Known bad

The file 277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23N was found to be: Known bad.

Malicious Activity Summary

healer discovery dropper evasion persistence trojan

Healer family

Detects Healer an antivirus disabler dropper

Modifies Windows Defender Real-time Protection settings

Healer

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

2024-11-10 02:05

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 02:05

Reported

2024-11-10 02:07

Platform

win10v2004-20241007-en

Max time kernel

90s

Max time network

92s

Command Line

"C:\Users\Admin\AppData\Local\Temp\277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23N.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\128055556.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\128055556.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\295444121.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\295444121.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\295444121.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\128055556.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\128055556.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\128055556.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\128055556.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\295444121.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\295444121.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\128055556.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\295444121.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\128055556.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\128055556.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\295444121.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\277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23N.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\277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\128055556.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\295444121.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\128055556.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\295444121.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23N.exe

"C:\Users\Admin\AppData\Local\Temp\277a78fee8ddfdc365dd187a34ee827448563befdf94f9bd8bdbec76b6d24d23N.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\128055556.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\128055556.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\295444121.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\295444121.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 888 -ip 888

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 888 -s 1080

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.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 43.229.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\128055556.exe

MD5 a165b5f6b0a4bdf808b71de57bf9347d
SHA1 39a7b301e819e386c162a47e046fa384bb5ab437
SHA256 68349ed349ed7bbb9a279ac34ea4984206a1a1b3b73587fd1b109d55391af09a
SHA512 3dd6ca63a2aecb2a0599f0b918329e75b92eb5259d6986bd8d41cb8ebcf7b965bbd12786929d61743ae8613c2e180078f2eed2835ccb54378cd343c4a048c1a1

memory/2132-7-0x000000007498E000-0x000000007498F000-memory.dmp

memory/2132-8-0x0000000002160000-0x000000000217A000-memory.dmp

memory/2132-9-0x0000000074980000-0x0000000075130000-memory.dmp

memory/2132-10-0x0000000004B00000-0x00000000050A4000-memory.dmp

memory/2132-11-0x00000000050B0000-0x00000000050C8000-memory.dmp

memory/2132-12-0x0000000074980000-0x0000000075130000-memory.dmp

memory/2132-13-0x0000000074980000-0x0000000075130000-memory.dmp

memory/2132-15-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-39-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-37-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-35-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-41-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-33-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-31-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-29-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-27-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-25-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-23-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-21-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-19-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-17-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-14-0x00000000050B0000-0x00000000050C3000-memory.dmp

memory/2132-42-0x000000007498E000-0x000000007498F000-memory.dmp

memory/2132-43-0x0000000074980000-0x0000000075130000-memory.dmp

memory/2132-45-0x0000000074980000-0x0000000075130000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\295444121.exe

MD5 649c03340112cf7102545a6e11c69941
SHA1 e1492c41975190b0679d43e29d1bdac76f6fa3f8
SHA256 77bb62e0903b63235ca597fe93bfdb54806b494b9e18fb9bef285534f5b7a79e
SHA512 2e1bfba827fe86f37e7e77b2b339c0903e1af08ad33d27860e518d1889117bc04b08dbc17919594334568b0a8866bded867b2f38c9f42facdf10ae8ee3a0abb4

memory/888-50-0x00000000004C0000-0x00000000005C0000-memory.dmp

memory/888-52-0x0000000000400000-0x0000000000430000-memory.dmp

memory/888-51-0x0000000002080000-0x00000000020AD000-memory.dmp

memory/888-53-0x0000000000400000-0x0000000000455000-memory.dmp

memory/888-82-0x00000000004C0000-0x00000000005C0000-memory.dmp

memory/888-83-0x0000000002080000-0x00000000020AD000-memory.dmp

memory/888-84-0x0000000000400000-0x0000000000430000-memory.dmp

memory/888-87-0x0000000000400000-0x0000000000455000-memory.dmp

memory/888-88-0x0000000000400000-0x0000000000430000-memory.dmp