Malware Analysis Report

2024-10-16 03:44

Sample ID 240508-b6fmlsef27
Target 99c1e668a3a66c8f50bb8a82732dc0e0_NEIKI
SHA256 cbf8f2acc34ea14921d1eea9ace5d4210dd2dcefd88b6fafae703f534b0c754c
Tags
healer 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

cbf8f2acc34ea14921d1eea9ace5d4210dd2dcefd88b6fafae703f534b0c754c

Threat Level: Known bad

The file 99c1e668a3a66c8f50bb8a82732dc0e0_NEIKI was found to be: Known bad.

Malicious Activity Summary

healer dropper evasion persistence trojan

Detects Healer an antivirus disabler dropper

Healer

Modifies Windows Defender Real-time Protection settings

Windows security modification

Executes dropped EXE

Adds Run key to start application

Program crash

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-08 01:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 01:45

Reported

2024-05-08 01:47

Platform

win10v2004-20240419-en

Max time kernel

134s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\99c1e668a3a66c8f50bb8a82732dc0e0_NEIKI.exe"

Signatures

Detects Healer an antivirus disabler dropper

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

Healer

dropper 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\122546449.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\122546449.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\237727250.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\237727250.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\122546449.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\122546449.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\122546449.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\122546449.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\237727250.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\237727250.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\237727250.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\122546449.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\237727250.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\122546449.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\237727250.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\122546449.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\99c1e668a3a66c8f50bb8a82732dc0e0_NEIKI.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\122546449.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\237727250.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\99c1e668a3a66c8f50bb8a82732dc0e0_NEIKI.exe

"C:\Users\Admin\AppData\Local\Temp\99c1e668a3a66c8f50bb8a82732dc0e0_NEIKI.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\122546449.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\122546449.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\237727250.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\237727250.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3852 -ip 3852

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3852 -s 1076

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 139.53.16.96.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 48.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\122546449.exe

MD5 3d10b67208452d7a91d7bd7066067676
SHA1 e6c3ab7b6da65c8cc7dd95351f118caf3a50248d
SHA256 5c8ae96739bd9454a59e92b5eb6965647030e87453f7c417dbd7d53ebd837302
SHA512 b86d5ff4f55c90922a890401ae4301da7e71eb5e546a82536073cc58780ce55585214cff39ec9b52f70704580ad36c1fa95ebee1515dd2e7ea313cb670f2b4df

memory/744-7-0x000000007447E000-0x000000007447F000-memory.dmp

memory/744-8-0x00000000024A0000-0x00000000024BA000-memory.dmp

memory/744-10-0x0000000004DC0000-0x0000000005364000-memory.dmp

memory/744-9-0x0000000074470000-0x0000000074C20000-memory.dmp

memory/744-11-0x0000000002670000-0x0000000002688000-memory.dmp

memory/744-12-0x0000000074470000-0x0000000074C20000-memory.dmp

memory/744-28-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-40-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-38-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-36-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-34-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-32-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-30-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-18-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-41-0x0000000074470000-0x0000000074C20000-memory.dmp

memory/744-16-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-14-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-13-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-26-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-24-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-22-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-20-0x0000000002670000-0x0000000002683000-memory.dmp

memory/744-43-0x0000000074470000-0x0000000074C20000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\237727250.exe

MD5 633cf81cffb453329374d6629d50e149
SHA1 39395eb9884146a608e654b6c40159e57d0a7504
SHA256 ae50b2a4e2701b1ff5c7616d1183cfbd5444e0e8c37ef77fe85e9ba702e948fa
SHA512 458be077270a50326e758044a541064b64de5c4c7642728e0ea82dde86f427af917858acac21dcb8f06daeb4f333d005969606d7e009ca74600e33b5077a45db

memory/3852-77-0x0000000000400000-0x0000000002B99000-memory.dmp