Malware Analysis Report

2025-08-05 19:17

Sample ID 240513-mmj2gabe52
Target b2df6b5a140578849d603608e3223540_NeikiAnalytics
SHA256 933d434a1a7a52909c4fc87406cf182fd133c6eeea475acd27d37b64ea198054
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

933d434a1a7a52909c4fc87406cf182fd133c6eeea475acd27d37b64ea198054

Threat Level: Known bad

The file b2df6b5a140578849d603608e3223540_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

Loads dropped DLL

Windows security modification

Executes dropped EXE

Modifies WinLogon

Drops file in System32 directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-13 10:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-13 10:34

Reported

2024-05-13 10:37

Platform

win7-20240221-en

Max time kernel

149s

Max time network

118s

Command Line

winlogon.exe

Signatures

Windows security bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.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\{484B554C-4249-4255-484B-554C42494255} C:\Windows\SysWOW64\uvserib.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\IsInstalled = "1" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{484B554C-4249-4255-484B-554C42494255}\StubPath = "C:\\Windows\\system32\\eaxvugum.exe" C:\Windows\SysWOW64\uvserib.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\uvserib.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ubvooron.exe" C:\Windows\SysWOW64\uvserib.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\uvserib.exe N/A
N/A N/A C:\Windows\SysWOW64\uvserib.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\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.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\uvserib.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify C:\Windows\SysWOW64\uvserib.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\uvserib.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\\esfosoar-oucoab.dll" C:\Windows\SysWOW64\uvserib.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\uvserib.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\eaxvugum.exe C:\Windows\SysWOW64\uvserib.exe N/A
File opened for modification C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe N/A
File opened for modification C:\Windows\SysWOW64\uvserib.exe C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe N/A
File opened for modification C:\Windows\SysWOW64\ubvooron.exe C:\Windows\SysWOW64\uvserib.exe N/A
File created C:\Windows\SysWOW64\ubvooron.exe C:\Windows\SysWOW64\uvserib.exe N/A
File opened for modification C:\Windows\SysWOW64\eaxvugum.exe C:\Windows\SysWOW64\uvserib.exe N/A
File opened for modification C:\Windows\SysWOW64\esfosoar-oucoab.dll C:\Windows\SysWOW64\uvserib.exe N/A
File created C:\Windows\SysWOW64\esfosoar-oucoab.dll C:\Windows\SysWOW64\uvserib.exe N/A
File created C:\Windows\SysWOW64\uvserib.exe C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\uvserib.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2172 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe C:\Windows\SysWOW64\uvserib.exe
PID 2172 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe C:\Windows\SysWOW64\uvserib.exe
PID 2172 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe C:\Windows\SysWOW64\uvserib.exe
PID 2172 wrote to memory of 2588 N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe C:\Windows\SysWOW64\uvserib.exe
PID 2588 wrote to memory of 436 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\system32\winlogon.exe
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 2504 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe
PID 2588 wrote to memory of 2504 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe
PID 2588 wrote to memory of 2504 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe
PID 2588 wrote to memory of 2504 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2588 wrote to memory of 1112 N/A C:\Windows\SysWOW64\uvserib.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\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe

"C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe"

C:\Windows\SysWOW64\uvserib.exe

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

C:\Windows\SysWOW64\uvserib.exe

--k33p

Network

Country Destination Domain Proto
US 8.8.8.8:53 wsqmqawqqu.st udp
US 8.8.8.8:53 wsqmqawqqu.st udp

Files

\Windows\SysWOW64\uvserib.exe

MD5 b2df6b5a140578849d603608e3223540
SHA1 6fdbdc31f0f5d1c80edf541c35373159f357f4bf
SHA256 933d434a1a7a52909c4fc87406cf182fd133c6eeea475acd27d37b64ea198054
SHA512 48b012da851d08b99d1d2aaa6856cfcd6bd345741b88c5cce4954bb2e5d66af73f3a12e8252f19b1f68ecd0600aec98796f9b449e036dac84f93651a89c3b660

memory/2172-10-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Windows\SysWOW64\eaxvugum.exe

MD5 5baea26ba695dd8856554f41400d728d
SHA1 2fb9bb638307fc87bde4c8300e50c9722058ea95
SHA256 cd782abeef405f7357bff12eb656b7b8a66e7727771b8f10698cd9971e5f8caa
SHA512 be2e84e0325e5c73e0d27d2603609cdb35d245dcac071d8b9be8cd00c280d1dbe6cb8dba779d349c8f376dbb5ae013d18d2cc394f8ad141b0c1da4f8f6fe53cf

C:\Windows\SysWOW64\esfosoar-oucoab.dll

MD5 f37b21c00fd81bd93c89ce741a88f183
SHA1 b2796500597c68e2f5638e1101b46eaf32676c1c
SHA256 76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512 252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

C:\Windows\SysWOW64\ubvooron.exe

MD5 4210e5600a581713e752d93ab7bfb212
SHA1 a9c541a03b4bc719528f16d7e922f6f4be1d4924
SHA256 c5df7872c6644b5495e45413e4e3d087d660ea7b75489c306c1f180efee50b6a
SHA512 9eb13953ba88fad008ff9191047d75f82f8fc9298628f97ed37b5412b85001246ef8cd439e054d9fa4f07d3793c1b11b57a942f1ebd3ab53a25e8f384f2a2061

memory/2588-55-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2504-56-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-13 10:34

Reported

2024-05-13 10:37

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

152s

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\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{534E4656-4751-4c55-534E-465647514c55}\IsInstalled = "1" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{534E4656-4751-4c55-534E-465647514c55}\StubPath = "C:\\Windows\\system32\\eaxvugum.exe" C:\Windows\SysWOW64\uvserib.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{534E4656-4751-4c55-534E-465647514c55} C:\Windows\SysWOW64\uvserib.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{534E4656-4751-4c55-534E-465647514c55}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" C:\Windows\SysWOW64\uvserib.exe N/A

Sets file execution options in registry

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\uvserib.exe N/A
N/A N/A C:\Windows\SysWOW64\uvserib.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\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" C:\Windows\SysWOW64\uvserib.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}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" C:\Windows\SysWOW64\uvserib.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\\esfosoar-oucoab.dll" C:\Windows\SysWOW64\uvserib.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\uvserib.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} C:\Windows\SysWOW64\uvserib.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify C:\Windows\SysWOW64\uvserib.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\eaxvugum.exe C:\Windows\SysWOW64\uvserib.exe N/A
File opened for modification C:\Windows\SysWOW64\esfosoar-oucoab.dll C:\Windows\SysWOW64\uvserib.exe N/A
File created C:\Windows\SysWOW64\esfosoar-oucoab.dll C:\Windows\SysWOW64\uvserib.exe N/A
File opened for modification C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe N/A
File opened for modification C:\Windows\SysWOW64\uvserib.exe C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe N/A
File created C:\Windows\SysWOW64\uvserib.exe C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe N/A
File opened for modification C:\Windows\SysWOW64\ubvooron.exe C:\Windows\SysWOW64\uvserib.exe N/A
File created C:\Windows\SysWOW64\ubvooron.exe C:\Windows\SysWOW64\uvserib.exe N/A
File created C:\Windows\SysWOW64\eaxvugum.exe C:\Windows\SysWOW64\uvserib.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\uvserib.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1884 wrote to memory of 2984 N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe C:\Windows\SysWOW64\uvserib.exe
PID 1884 wrote to memory of 2984 N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe C:\Windows\SysWOW64\uvserib.exe
PID 1884 wrote to memory of 2984 N/A C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe C:\Windows\SysWOW64\uvserib.exe
PID 2984 wrote to memory of 612 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\system32\winlogon.exe
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 4852 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe
PID 2984 wrote to memory of 4852 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe
PID 2984 wrote to memory of 4852 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\SysWOW64\uvserib.exe
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.exe C:\Windows\Explorer.EXE
PID 2984 wrote to memory of 3456 N/A C:\Windows\SysWOW64\uvserib.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\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe

"C:\Users\Admin\AppData\Local\Temp\b2df6b5a140578849d603608e3223540_NeikiAnalytics.exe"

C:\Windows\SysWOW64\uvserib.exe

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

C:\Windows\SysWOW64\uvserib.exe

--k33p

Network

Country Destination Domain Proto
US 8.8.8.8:53 gqwmmbeugt.cm udp
US 8.8.8.8:53 gqwmmbeugt.cm udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.113:443 www.bing.com tcp
NL 23.62.61.113:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 113.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 15.173.189.20.in-addr.arpa udp

Files

C:\Windows\SysWOW64\uvserib.exe

MD5 b2df6b5a140578849d603608e3223540
SHA1 6fdbdc31f0f5d1c80edf541c35373159f357f4bf
SHA256 933d434a1a7a52909c4fc87406cf182fd133c6eeea475acd27d37b64ea198054
SHA512 48b012da851d08b99d1d2aaa6856cfcd6bd345741b88c5cce4954bb2e5d66af73f3a12e8252f19b1f68ecd0600aec98796f9b449e036dac84f93651a89c3b660

memory/1884-6-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Windows\SysWOW64\ubvooron.exe

MD5 319d6258e3103a81623c79765e85dccc
SHA1 9770f17e186bc7a2a95049f37ad382dcc2350323
SHA256 647f3a7e392a96963a28db275d82a62e032b57e490c2d22d46dd3a58a96534ea
SHA512 d802b6b02fba3d9c8811f43490bf07e48376f8d0436214075c9fbacfe0783b6fc4000bbecfb3e6860e24936f35e6823c56a66da39ba7887f1f930cffd8fb7718

C:\Windows\SysWOW64\eaxvugum.exe

MD5 7ebecd3d1a506783ee91c780d688fa06
SHA1 c37229d7e95df1d9b489ed1d835b3ddcb1308150
SHA256 387a88c7c25737794ee3f44a87475f9b657041555abc0ee60968aecac8afb358
SHA512 3bc03d19f897aff04e29aae105dcb69230154b073cfea8d0bb39e63c040c0696ab7ee0322252314ddc4b76fccfade2ceab740e57c02e6616fb54220dee110deb

C:\Windows\SysWOW64\esfosoar-oucoab.dll

MD5 f37b21c00fd81bd93c89ce741a88f183
SHA1 b2796500597c68e2f5638e1101b46eaf32676c1c
SHA256 76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512 252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

memory/2984-49-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4852-50-0x0000000000400000-0x0000000000414000-memory.dmp