Malware Analysis Report

2025-04-13 20:48

Sample ID 250125-2xwkksvmfk
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

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

Executes dropped EXE

Loads dropped DLL

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-25 22:58

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-25 22:58

Reported

2025-01-25 23:00

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

148s

Command Line

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

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Nanocore family

nanocore

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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
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-1-5-21-3350944739-639801879-157714471-1000\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 2612 set thread context of 4044 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 3192 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3192 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3192 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2612 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2612 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2612 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2612 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2612 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2612 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2612 wrote to memory of 4044 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2612 wrote to memory of 4044 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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.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 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 sysupdate24.ddns.net udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 167.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/3192-0-0x0000000074732000-0x0000000074733000-memory.dmp

memory/3192-1-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/3192-2-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/3192-3-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/3192-4-0x0000000074732000-0x0000000074733000-memory.dmp

memory/3192-5-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/3192-6-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/3192-7-0x0000000074730000-0x0000000074CE1000-memory.dmp

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

MD5 4568aae9f054bcd65680a622ffabfac0
SHA1 e1e6512deca7f0f3dd3a1a4b1c4420af533a6269
SHA256 0fc61f25109a97da18f6b2f3cb19318622def3867fd040bd0a1c18e585837ec6
SHA512 4eafd8169b0a614f951b0db0c7d745d7aa1250c981794deece8904138ba04a53623e87d049d8df63a40ce7dd43ecde31817aed82a16d287be0de3ce19c9d4413

memory/3192-21-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/2612-22-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/2612-23-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/2612-24-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/2612-25-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/2612-26-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/2612-27-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/4044-31-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4044-29-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4044-28-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4044-33-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/4044-35-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/4044-34-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/4044-37-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/4044-38-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/2612-40-0x0000000074730000-0x0000000074CE1000-memory.dmp

memory/4044-41-0x0000000074730000-0x0000000074CE1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-25 22:58

Reported

2025-01-25 23:00

Platform

win7-20240903-en

Max time kernel

146s

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-1-5-21-3063565911-2056067323-3330884624-1000\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 2924 set thread context of 2928 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 2316 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2316 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2316 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2316 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2316 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2316 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2316 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\5367a32045767b8af7e9bdcb26ce5589be82f4df2bae6c54c8f632fbbd48e51d.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2924 wrote to memory of 2928 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/2316-0-0x00000000742B1000-0x00000000742B2000-memory.dmp

memory/2316-1-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2316-2-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2316-3-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2316-4-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2316-5-0x00000000742B0000-0x000000007485B000-memory.dmp

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

MD5 2cc48cd0b10f3c898475d43271848dd5
SHA1 cb9fb12fb7583131a1e8dc2963e5d13c026486ef
SHA256 cd4b2abbb5c47fec64cebfd9c8b55253fe5d3ad307fb3ecfc1e1108a37a9c0c1
SHA512 fb675b02bb8561999200e9a7b53a47453bddbb97719022f477c396052311374d9be4164e5f2d6c741a2861b483ea52adbe7f19693f2bda9be3ec2c5016387423

memory/2924-16-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2316-15-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2924-14-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2924-17-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2924-18-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2924-19-0x00000000742B0000-0x000000007485B000-memory.dmp

memory/2928-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2928-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2928-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2928-29-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2928-36-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2928-35-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2928-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2928-26-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2924-38-0x00000000742B0000-0x000000007485B000-memory.dmp