Malware Analysis Report

2025-04-13 20:47

Sample ID 250125-23y8navpeq
Target 5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d
SHA256 5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d
Tags
nanocore defense_evasion discovery 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

5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d

Threat Level: Known bad

The file 5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d was found to be: Known bad.

Malicious Activity Summary

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Nanocore family

NanoCore

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-25 23:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-25 23:07

Reported

2025-01-25 23:09

Platform

win7-20240903-en

Max time kernel

149s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Nanocore family

nanocore

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe N/A

Checks whether UAC is enabled

defense_evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2688 set thread context of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1224 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1224 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1224 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1224 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1224 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1224 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1224 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2688 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe

"C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sysupdate24.ddns.net udp

Files

memory/1224-0-0x0000000074381000-0x0000000074382000-memory.dmp

memory/1224-2-0x0000000074380000-0x000000007492B000-memory.dmp

memory/1224-1-0x0000000074380000-0x000000007492B000-memory.dmp

memory/1224-3-0x0000000074380000-0x000000007492B000-memory.dmp

memory/1224-4-0x0000000074380000-0x000000007492B000-memory.dmp

memory/1224-5-0x0000000074380000-0x000000007492B000-memory.dmp

memory/1224-6-0x0000000074380000-0x000000007492B000-memory.dmp

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

MD5 6c72e2553b08dd26454d183e492b4817
SHA1 72adee03664fd54cf1a883e2a69bc84c79046a11
SHA256 d66af870c6805000b57b3c97de6124e850bc7beea960d53f211374618aeb231d
SHA512 ceefb5f85055a0a564535273e4b9f16894c6dd16d5b410942d28fda5991d56c341ef632bf12bb53789bd1647aaf485896b7da453a32f8bf900a1b697b14fe372

memory/1224-16-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2688-15-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2688-17-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2688-18-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2688-19-0x0000000074380000-0x000000007492B000-memory.dmp

memory/2556-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2556-35-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2556-36-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2556-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2556-29-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2556-26-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2556-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2556-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2688-38-0x0000000074380000-0x000000007492B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-25 23:07

Reported

2025-01-25 23:09

Platform

win10v2004-20241007-en

Max time kernel

96s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe

"C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 20.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/1340-0-0x0000000075452000-0x0000000075453000-memory.dmp

memory/1340-1-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/1340-2-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/1340-3-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/1340-4-0x0000000075452000-0x0000000075453000-memory.dmp

memory/1340-5-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/1340-6-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/1340-7-0x0000000075450000-0x0000000075A01000-memory.dmp

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

MD5 8975aa6d85b1ea3ed0d3c9230510d443
SHA1 742bdfb8c12daeeb0cd49e6b36a730da3c2a8c46
SHA256 d4116a46db952f8eb31c87de7ef5856fc43bface47c59ed103ec6a48029ee0c3
SHA512 d0aeb7ba6bfe8ad271257cf3eddb5fd7e440fd3ceede73ad902ef21f53148dd80e7b2adfd173c32404667f97f58f863354be39f99b3faf9dbe2678ba242e228e

memory/1340-21-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/2976-22-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/2976-23-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/2976-24-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/2976-25-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/2976-26-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/2976-27-0x0000000075450000-0x0000000075A01000-memory.dmp

memory/2976-29-0x0000000075450000-0x0000000075A01000-memory.dmp