Malware Analysis Report

2025-08-11 00:07

Sample ID 240513-hnv3xabc21
Target a33010021f234d019348d211e5b99160_NeikiAnalytics
SHA256 cfd91e1524ed8c86f7d9b5642dcd690cc91e66325408b997622fc11c0ac98b5c
Tags
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

cfd91e1524ed8c86f7d9b5642dcd690cc91e66325408b997622fc11c0ac98b5c

Threat Level: Known bad

The file a33010021f234d019348d211e5b99160_NeikiAnalytics was found to be: Known bad.

Malicious Activity Summary

evasion persistence trojan

Windows security bypass

Modifies Installed Components in the registry

Sets file execution options in registry

Executes dropped EXE

Loads dropped DLL

Windows security modification

Modifies WinLogon

Drops file in System32 directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-13 06:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-13 06:53

Reported

2024-05-13 06:56

Platform

win7-20240221-en

Max time kernel

149s

Max time network

123s

Command Line

winlogon.exe

Signatures

Windows security bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{51475451-5a54-5245-5147-54515A545245} C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{51475451-5a54-5245-5147-54515A545245}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{51475451-5a54-5245-5147-54515A545245}\IsInstalled = "1" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{51475451-5a54-5245-5147-54515A545245}\StubPath = "C:\\Windows\\system32\\pberar.exe" C:\Windows\SysWOW64\efmeasam.exe N/A

Sets file execution options in registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ixpiceap-ifom.exe" C:\Windows\SysWOW64\efmeasam.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A

Modifies WinLogon

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" C:\Windows\SysWOW64\efmeasam.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} C:\Windows\SysWOW64\efmeasam.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\eafgexac-ikooc.dll" C:\Windows\SysWOW64\efmeasam.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\efmeasam.exe C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe N/A
File created C:\Windows\SysWOW64\ixpiceap-ifom.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File created C:\Windows\SysWOW64\eafgexac-ikooc.dll C:\Windows\SysWOW64\efmeasam.exe N/A
File opened for modification C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File opened for modification C:\Windows\SysWOW64\efmeasam.exe C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe N/A
File opened for modification C:\Windows\SysWOW64\ixpiceap-ifom.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File opened for modification C:\Windows\SysWOW64\pberar.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File created C:\Windows\SysWOW64\pberar.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File opened for modification C:\Windows\SysWOW64\eafgexac-ikooc.dll C:\Windows\SysWOW64\efmeasam.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\efmeasam.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2912 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe C:\Windows\SysWOW64\efmeasam.exe
PID 2912 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe C:\Windows\SysWOW64\efmeasam.exe
PID 2912 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe C:\Windows\SysWOW64\efmeasam.exe
PID 2912 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe C:\Windows\SysWOW64\efmeasam.exe
PID 2332 wrote to memory of 436 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\system32\winlogon.exe
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 2224 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe
PID 2332 wrote to memory of 2224 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe
PID 2332 wrote to memory of 2224 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe
PID 2332 wrote to memory of 2224 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 2332 wrote to memory of 1176 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\system32\winlogon.exe

winlogon.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe

"C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe"

C:\Windows\SysWOW64\efmeasam.exe

"C:\Windows\system32\efmeasam.exe"

C:\Windows\SysWOW64\efmeasam.exe

--k33p

Network

Country Destination Domain Proto
US 8.8.8.8:53 cdrms.cm udp
US 8.8.8.8:53 cdrms.cm udp

Files

memory/2912-10-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Windows\SysWOW64\efmeasam.exe

MD5 a33010021f234d019348d211e5b99160
SHA1 98f870b9fa9ea4d1649b957d70480efe3f53f553
SHA256 cfd91e1524ed8c86f7d9b5642dcd690cc91e66325408b997622fc11c0ac98b5c
SHA512 d50d2146d2ad824186d985a5c5eaa4ef299b025f925b7a48247e9b7ecb05f025613970b77366791cc99fb37a14727bcd5532417f9ef2fe59b8877106ccec42b0

C:\Windows\SysWOW64\eafgexac-ikooc.dll

MD5 f37b21c00fd81bd93c89ce741a88f183
SHA1 b2796500597c68e2f5638e1101b46eaf32676c1c
SHA256 76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512 252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

C:\Windows\SysWOW64\ixpiceap-ifom.exe

MD5 94784d90d6c61ed7c04673674a7dda29
SHA1 b0aec424224e0823d5a47a293ec2473eb94e0562
SHA256 151230bbcb65a2633aeae94ffb9415e4ffcb8838608154978dfcdf4070495b74
SHA512 5dd04d863978ec65516e02f226b37a78b03e78da368ba5723db885977b000f8eb8c05faec4f7d75480b6f3fba37d0647aad8afa80ae95039363283e17aa12ec4

C:\Windows\SysWOW64\pberar.exe

MD5 20175dd5d645759925a87e9b48b165ca
SHA1 d483a10084cc27603608c21b81cb44fea3f9885f
SHA256 f8e51021b2d7b8c3f7a3c781e25a190c97fa7902ae1f914dfce6f99ce0a7634f
SHA512 45eebc58833202a29269deb14610be374ade90cbaffe79ce8b5fe04f648613bdcbd9af542b3e21450520368eafe59160d0fe48ac9a06c769168b7ca485f47c90

memory/2332-55-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2224-56-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-13 06:53

Reported

2024-05-13 06:56

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

150s

Command Line

winlogon.exe

Signatures

Windows security bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E515054-544d-524d-4E51-5054544D524d} C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E515054-544d-524d-4E51-5054544D524d}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E515054-544d-524d-4E51-5054544D524d}\IsInstalled = "1" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E515054-544d-524d-4E51-5054544D524d}\StubPath = "C:\\Windows\\system32\\pberar.exe" C:\Windows\SysWOW64\efmeasam.exe N/A

Sets file execution options in registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ixpiceap-ifom.exe" C:\Windows\SysWOW64\efmeasam.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" C:\Windows\SysWOW64\efmeasam.exe N/A

Modifies WinLogon

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} C:\Windows\SysWOW64\efmeasam.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\eafgexac-ikooc.dll" C:\Windows\SysWOW64\efmeasam.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" C:\Windows\SysWOW64\efmeasam.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\efmeasam.exe C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe N/A
File created C:\Windows\SysWOW64\efmeasam.exe C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe N/A
File opened for modification C:\Windows\SysWOW64\pberar.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File created C:\Windows\SysWOW64\eafgexac-ikooc.dll C:\Windows\SysWOW64\efmeasam.exe N/A
File opened for modification C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File opened for modification C:\Windows\SysWOW64\ixpiceap-ifom.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File created C:\Windows\SysWOW64\ixpiceap-ifom.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File created C:\Windows\SysWOW64\pberar.exe C:\Windows\SysWOW64\efmeasam.exe N/A
File opened for modification C:\Windows\SysWOW64\eafgexac-ikooc.dll C:\Windows\SysWOW64\efmeasam.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A
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N/A N/A C:\Windows\SysWOW64\efmeasam.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\efmeasam.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1144 wrote to memory of 3300 N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe C:\Windows\SysWOW64\efmeasam.exe
PID 1144 wrote to memory of 3300 N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe C:\Windows\SysWOW64\efmeasam.exe
PID 1144 wrote to memory of 3300 N/A C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe C:\Windows\SysWOW64\efmeasam.exe
PID 3300 wrote to memory of 612 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\system32\winlogon.exe
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 4908 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe
PID 3300 wrote to memory of 4908 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe
PID 3300 wrote to memory of 4908 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\SysWOW64\efmeasam.exe
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE
PID 3300 wrote to memory of 3524 N/A C:\Windows\SysWOW64\efmeasam.exe C:\Windows\Explorer.EXE

Processes

C:\Windows\system32\winlogon.exe

winlogon.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe

"C:\Users\Admin\AppData\Local\Temp\a33010021f234d019348d211e5b99160_NeikiAnalytics.exe"

C:\Windows\SysWOW64\efmeasam.exe

"C:\Windows\system32\efmeasam.exe"

C:\Windows\SysWOW64\efmeasam.exe

--k33p

Network

Country Destination Domain Proto
US 8.8.8.8:53 nguismhickjkq.mp udp
US 8.8.8.8:53 nguismhickjkq.mp udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 28.173.189.20.in-addr.arpa udp

Files

C:\Windows\SysWOW64\efmeasam.exe

MD5 a33010021f234d019348d211e5b99160
SHA1 98f870b9fa9ea4d1649b957d70480efe3f53f553
SHA256 cfd91e1524ed8c86f7d9b5642dcd690cc91e66325408b997622fc11c0ac98b5c
SHA512 d50d2146d2ad824186d985a5c5eaa4ef299b025f925b7a48247e9b7ecb05f025613970b77366791cc99fb37a14727bcd5532417f9ef2fe59b8877106ccec42b0

memory/1144-6-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Windows\SysWOW64\pberar.exe

MD5 09549259c2034f6d106869e2a8fcf434
SHA1 6c6e81a1ad757dfe9385c4759d353cb3477416b6
SHA256 17b8144e289d60886fce722d1c54458cc2377b172e457bd47475afdb182709ba
SHA512 f91f4d429587ae755f2aab1645bdf58113ff4e2baa5ee5901b21c4457ff13544a151a54be4512aff2fdc83213d71223e76df1f5fce18634b690c2758f5a36c6c

C:\Windows\SysWOW64\eafgexac-ikooc.dll

MD5 f37b21c00fd81bd93c89ce741a88f183
SHA1 b2796500597c68e2f5638e1101b46eaf32676c1c
SHA256 76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512 252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

C:\Windows\SysWOW64\ixpiceap-ifom.exe

MD5 fda027fccff13effe0a1276877e68c26
SHA1 5ab09f61aa70a88a8d34c624a357b36866010c2c
SHA256 7d456708e984eaca9fadd9addc719cb7574fd4883d71dc9041106cc7bf9d049f
SHA512 3c30d5e8bd18e974deee896c504114e823a8beb2b398ed83c6f0d2d0601b05f0b1faf6366dab030d7948e69a794c4369540ddfde06dd1736432ae3b3f054d09b

memory/3300-49-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4908-50-0x0000000000400000-0x0000000000414000-memory.dmp