Malware Analysis Report

2025-08-05 14:33

Sample ID 221127-addf4sef28
Target 6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d
SHA256 6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d
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

6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d

Threat Level: Known bad

The file 6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

Modifies WinLogon for persistence

NanoCore

Checks whether UAC is enabled

Suspicious use of SetThreadContext

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-27 00:05

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-27 00:05

Reported

2022-11-27 17:46

Platform

win7-20221111-en

Max time kernel

164s

Max time network

92s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\9oNqwXA0uhYSdCD3\\fwJRU0yK4uB3.exe\",explorer.exe" C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A

NanoCore

keylogger trojan stealer spyware nanocore

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1724 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 1124 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 1724 wrote to memory of 468 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"

C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"

C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp

Files

memory/1724-54-0x0000000075A91000-0x0000000075A93000-memory.dmp

memory/1724-55-0x0000000074110000-0x00000000746BB000-memory.dmp

memory/1724-56-0x0000000074110000-0x00000000746BB000-memory.dmp

memory/468-57-0x0000000000400000-0x0000000000438000-memory.dmp

memory/468-58-0x0000000000400000-0x0000000000438000-memory.dmp

memory/468-60-0x0000000000400000-0x0000000000438000-memory.dmp

memory/468-61-0x0000000000400000-0x0000000000438000-memory.dmp

memory/468-63-0x0000000000400000-0x0000000000438000-memory.dmp

memory/468-64-0x000000000041EDAE-mapping.dmp

memory/468-68-0x0000000000400000-0x0000000000438000-memory.dmp

memory/468-66-0x0000000000400000-0x0000000000438000-memory.dmp

memory/468-70-0x0000000074110000-0x00000000746BB000-memory.dmp

memory/1724-71-0x0000000074110000-0x00000000746BB000-memory.dmp

memory/468-72-0x0000000074110000-0x00000000746BB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-11-27 00:05

Reported

2022-11-27 17:45

Platform

win10v2004-20220812-en

Max time kernel

172s

Max time network

174s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\9oNqwXA0uhYSdCD3\\xm8ePVAjEwOT.exe\",explorer.exe" C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A

NanoCore

keylogger trojan stealer spyware nanocore

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3592 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
PID 3592 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"

C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"

C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"

Network

Country Destination Domain Proto
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 93.184.221.240:80 tcp
N/A 104.80.225.205:443 tcp
N/A 93.184.221.240:80 tcp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 93.184.221.240:80 tcp
N/A 93.184.221.240:80 tcp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 13.69.239.73:443 tcp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 226.101.242.52.in-addr.arpa udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano.ddns.net udp
N/A 8.8.8.8:53 euroano2.ddns.net udp

Files

memory/3592-132-0x0000000074C60000-0x0000000075211000-memory.dmp

memory/2424-133-0x0000000000000000-mapping.dmp

memory/1744-134-0x0000000000000000-mapping.dmp

memory/1744-135-0x0000000000400000-0x0000000000438000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe.log

MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

memory/1744-137-0x0000000074C60000-0x0000000075211000-memory.dmp

memory/3592-138-0x0000000074C60000-0x0000000075211000-memory.dmp

memory/1744-139-0x0000000074C60000-0x0000000075211000-memory.dmp