Malware Analysis Report

2025-06-16 06:21

Sample ID 231201-mcr94aha91
Target 0x00070000000120b7-4.dat
SHA256 5a8277de5871436e5e2b605eb07a1c29def195d649725b985be59732c1e5236b
Tags
nanocore evasion keylogger persistence spyware stealer 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

5a8277de5871436e5e2b605eb07a1c29def195d649725b985be59732c1e5236b

Threat Level: Known bad

The file 0x00070000000120b7-4.dat was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

Nanocore family

NanoCore

Legitimate hosting services abused for malware hosting/C2

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Program Files directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-01 10:19

Signatures

Nanocore family

nanocore

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-01 10:19

Reported

2023-12-01 10:22

Platform

win7-20231020-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsvc.exe" C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.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:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Legitimate hosting services abused for malware hosting/C2

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\UDP Service\udpsvc.exe C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A
File opened for modification C:\Program Files (x86)\UDP Service\udpsvc.exe C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe

"C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp

Files

memory/2216-0-0x0000000074AA0000-0x000000007504B000-memory.dmp

memory/2216-1-0x0000000074AA0000-0x000000007504B000-memory.dmp

memory/2216-2-0x0000000001FC0000-0x0000000002000000-memory.dmp

memory/2216-5-0x0000000074AA0000-0x000000007504B000-memory.dmp

memory/2216-6-0x0000000074AA0000-0x000000007504B000-memory.dmp

memory/2216-7-0x0000000001FC0000-0x0000000002000000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-01 10:19

Reported

2023-12-01 10:22

Platform

win10v2004-20231127-en

Max time kernel

150s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Manager = "C:\\Program Files (x86)\\SMTP Manager\\smtpmgr.exe" C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.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:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Legitimate hosting services abused for malware hosting/C2

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\SMTP Manager\smtpmgr.exe C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A
File opened for modification C:\Program Files (x86)\SMTP Manager\smtpmgr.exe C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe

"C:\Users\Admin\AppData\Local\Temp\0x00070000000120b7-4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 107.175.53.84.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 232.7.17.3.in-addr.arpa udp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 225.191.13.3.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 40.30.22.3.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 121.175.53.84.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 175.125.134.3.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 98.175.53.84.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 203.182.14.3.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 220.39.134.3.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 25.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.39.220:14849 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.134.125.175:14849 0.tcp.ngrok.io tcp

Files

memory/3544-0-0x0000000074960000-0x0000000074F11000-memory.dmp

memory/3544-1-0x0000000074960000-0x0000000074F11000-memory.dmp

memory/3544-2-0x00000000013D0000-0x00000000013E0000-memory.dmp

memory/3544-5-0x00000000013D0000-0x00000000013E0000-memory.dmp

memory/3544-6-0x0000000074960000-0x0000000074F11000-memory.dmp

memory/3544-7-0x0000000074960000-0x0000000074F11000-memory.dmp

memory/3544-8-0x00000000013D0000-0x00000000013E0000-memory.dmp