Malware Analysis Report

2025-08-05 14:33

Sample ID 221126-3jlc5ada85
Target ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102
SHA256 ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102
Tags
nanocore evasion keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102

Threat Level: Known bad

The file ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Modifies WinLogon for persistence

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of SetThreadContext

AutoIT Executable

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-26 23:32

Signatures

AutoIT Executable

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

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-26 23:32

Reported

2022-11-27 16:57

Platform

win7-20220812-en

Max time kernel

151s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "%AppData%\\Windows\\Sidebar.exe,explorer.exe" C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe N/A

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\2 = "%AppData%\\Windows\\Sidebar.exe" C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1192 set thread context of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 1192 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe

"C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 lazyshare.net udp
N/A 35.212.156.187:80 lazyshare.net tcp

Files

memory/1192-54-0x0000000076701000-0x0000000076703000-memory.dmp

memory/1512-55-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1512-56-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1512-58-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1512-59-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1512-62-0x000000000041EDAE-mapping.dmp

memory/1512-61-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1512-64-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1512-66-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1512-68-0x0000000074AD0000-0x000000007507B000-memory.dmp

memory/1512-69-0x0000000074AD0000-0x000000007507B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-11-26 23:32

Reported

2022-11-27 16:58

Platform

win10v2004-20220812-en

Max time kernel

196s

Max time network

199s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "%AppData%\\Windows\\Sidebar.exe,explorer.exe" C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe N/A

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2 = "%AppData%\\Windows\\Sidebar.exe" C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4804 set thread context of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4804 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4804 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4804 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4804 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4804 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4804 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4804 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 4804 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe

"C:\Users\Admin\AppData\Local\Temp\ca0fe1d580e881e6908aced30a49c9f48cd8ea14c769571b1a60bd8eee033102.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

Network

Country Destination Domain Proto
N/A 8.238.23.254:80 tcp
N/A 8.238.23.254:80 tcp
N/A 51.116.253.170:443 tcp
N/A 93.184.221.240:80 tcp
N/A 93.184.221.240:80 tcp
N/A 93.184.221.240:80 tcp
N/A 93.184.220.29:80 tcp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 lazyshare.net udp
N/A 35.212.156.187:80 lazyshare.net tcp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 97.97.242.52.in-addr.arpa udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 7.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.2.0.0.0.0.2.0.1.3.0.6.2.ip6.arpa udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp
N/A 8.8.8.8:53 donx.strangled.net udp

Files

memory/2076-132-0x0000000000000000-mapping.dmp

memory/2076-133-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2076-134-0x0000000074D60000-0x0000000075311000-memory.dmp

memory/2076-135-0x0000000074D60000-0x0000000075311000-memory.dmp