Malware Analysis Report

2024-10-19 07:05

Sample ID 240806-3ppyhaxhla
Target 2c1376fb9240ce381d3b75e109312c20N.exe
SHA256 9461a944529d860e0be6f7772acbad8252983cb4714998a7c39dc901bc916269
Tags
nanocore discovery 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

9461a944529d860e0be6f7772acbad8252983cb4714998a7c39dc901bc916269

Threat Level: Known bad

The file 2c1376fb9240ce381d3b75e109312c20N.exe was found to be: Known bad.

Malicious Activity Summary

nanocore discovery evasion keylogger persistence spyware stealer trojan

NanoCore

Drops startup file

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of SetThreadContext

AutoIT Executable

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-06 23:41

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 23:41

Reported

2024-08-06 23:43

Platform

win7-20240708-en

Max time kernel

119s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PasswordOnWakeSettingFlyout.url C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\PCI Manager = "C:\\Program Files (x86)\\PCI Manager\\pcimgr.exe" C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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 2324 set thread context of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\PCI Manager\pcimgr.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
File opened for modification C:\Program Files (x86)\PCI Manager\pcimgr.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

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\2c1376fb9240ce381d3b75e109312c20N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

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

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 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2324 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2584 wrote to memory of 2724 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2584 wrote to memory of 2724 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2584 wrote to memory of 2724 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2584 wrote to memory of 2724 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2584 wrote to memory of 2580 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2584 wrote to memory of 2580 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2584 wrote to memory of 2580 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2584 wrote to memory of 2580 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe

"C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe"

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

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

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "PCI Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFCA7.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "PCI Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFCF6.tmp"

Network

Country Destination Domain Proto
NL 213.184.126.143:1993 tcp
NL 213.184.126.143:1993 tcp
NL 213.184.126.143:1993 tcp
NL 213.184.126.143:1993 tcp

Files

memory/2324-0-0x0000000000120000-0x0000000000121000-memory.dmp

memory/2584-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2584-3-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2584-10-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2584-9-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2584-1-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2584-11-0x0000000074942000-0x0000000074944000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpFCA7.tmp

MD5 c6f0625bf4c1cdfb699980c9243d3b22
SHA1 43de1fe580576935516327f17b5da0c656c72851
SHA256 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576
SHA512 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

C:\Users\Admin\AppData\Local\Temp\tmpFCF6.tmp

MD5 da7aec92f4b1e721f6eeccec52db4901
SHA1 e1bc32c2277c42aec2356f6242ee427af53c2a52
SHA256 7bcfd205f07bffa61c788644c1d6639d03126c46fdbd6550f7e21795dc78b3c0
SHA512 340e234cdfb1b327369378131629f0ff5538c6a1c578c59bfc1b66442ff3f5793f119db13b8d3f158969071eb0fc0c7fbe5c79094572fac0cea528489bf11720

memory/2584-22-0x0000000074942000-0x0000000074944000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 23:41

Reported

2024-08-06 23:43

Platform

win10v2004-20240802-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PasswordOnWakeSettingFlyout.url C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAS Monitor = "C:\\Program Files (x86)\\NAS Monitor\\nasmon.exe" C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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 3316 set thread context of 2428 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\NAS Monitor\nasmon.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A
File opened for modification C:\Program Files (x86)\NAS Monitor\nasmon.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

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 3316 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 3316 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 3316 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 3316 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 3316 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
PID 2428 wrote to memory of 2944 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2428 wrote to memory of 2944 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2428 wrote to memory of 2944 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2428 wrote to memory of 3832 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2428 wrote to memory of 3832 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe
PID 2428 wrote to memory of 3832 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe

"C:\Users\Admin\AppData\Local\Temp\2c1376fb9240ce381d3b75e109312c20N.exe"

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

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

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "NAS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp59D0.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "NAS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5A0F.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 71.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 213.184.126.143:1993 tcp
NL 213.184.126.143:1993 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
NL 213.184.126.143:1993 tcp
NL 213.184.126.143:1993 tcp

Files

memory/2428-1-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3316-5-0x0000000001200000-0x0000000001201000-memory.dmp

memory/2428-6-0x00000000742A2000-0x00000000742A3000-memory.dmp

memory/2428-7-0x00000000742A0000-0x0000000074851000-memory.dmp

memory/2428-8-0x00000000742A0000-0x0000000074851000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp59D0.tmp

MD5 c6f0625bf4c1cdfb699980c9243d3b22
SHA1 43de1fe580576935516327f17b5da0c656c72851
SHA256 8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576
SHA512 9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

C:\Users\Admin\AppData\Local\Temp\tmp5A0F.tmp

MD5 3144131f2fe1c35ad2aafff167a26f59
SHA1 959879de38aed11bc08b7725500d2c8c953e80bf
SHA256 d20aeda9cadd332268afc89cbee76f297b00f061bf69a2f558a8d7657e4c41d7
SHA512 27a07c8f953cc4fde9ec348d3f5c4621ab56ff281b778bc7ac95dd808d5f0eea6969c5e4662efc00a6416c8bcf4d8e3892be5c99e603e36f8aa49d2a957206fb

memory/2428-19-0x00000000742A2000-0x00000000742A3000-memory.dmp

memory/2428-20-0x00000000742A0000-0x0000000074851000-memory.dmp