Malware Analysis Report

2024-10-23 19:39

Sample ID 240815-npbcsavbjm
Target ae1265e9fe0ac39bbe970a3fa66c64b0N.exe
SHA256 87a574cbf6233e2fd7a3872da22451ae49f6248cca5c900dab49207e0f0135b0
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

87a574cbf6233e2fd7a3872da22451ae49f6248cca5c900dab49207e0f0135b0

Threat Level: Known bad

The file ae1265e9fe0ac39bbe970a3fa66c64b0N.exe was found to be: Known bad.

Malicious Activity Summary

nanocore discovery evasion keylogger persistence spyware stealer trojan

NanoCore

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

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: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-15 11:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-15 11:33

Reported

2024-08-15 11:35

Platform

win7-20240729-en

Max time kernel

117s

Max time network

26s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe"

Signatures

NanoCore

keylogger trojan stealer spyware 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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3032 set thread context of 1680 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\ae1265e9fe0ac39bbe970a3fa66c64b0N.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 2464 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2464 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2464 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2464 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2464 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2464 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2464 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3032 wrote to memory of 1680 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\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe

"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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/2464-0-0x0000000074331000-0x0000000074332000-memory.dmp

memory/2464-1-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/2464-2-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/2464-3-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/2464-4-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/2464-5-0x0000000074330000-0x00000000748DB000-memory.dmp

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

MD5 46ea6c6ba0b6e65603aa8c45e613749d
SHA1 3ed9044b4ea833aa23f3f2f71ee1e75548bc3181
SHA256 4227e9befd517559b35c8089fbba2806b98f09160aacf4353dd44ed00d441948
SHA512 ccccaa0f19f474f0f94986f9a4699a70e5fc6c53c9b7cee5eff4a67a09c552d2fbfe723eb25dd991a0bc00483d3c54ebf6aeb325aff3148b314f533c3f327393

memory/2464-14-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/3032-15-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/3032-16-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/3032-17-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/3032-18-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/3032-19-0x0000000074330000-0x00000000748DB000-memory.dmp

memory/1680-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1680-36-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1680-35-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1680-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1680-29-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1680-26-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1680-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1680-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3032-38-0x0000000074330000-0x00000000748DB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-15 11:33

Reported

2024-08-15 11:35

Platform

win10v2004-20240802-en

Max time kernel

110s

Max time network

111s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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\ae1265e9fe0ac39bbe970a3fa66c64b0N.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\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe

"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/2144-0-0x00000000746F2000-0x00000000746F3000-memory.dmp

memory/2144-1-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/2144-2-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/2144-3-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/2144-4-0x00000000746F2000-0x00000000746F3000-memory.dmp

memory/2144-5-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/2144-6-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/2144-7-0x00000000746F0000-0x0000000074CA1000-memory.dmp

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

MD5 7869fedcc39a5b392f63e505ad29d8b5
SHA1 51eacb2edabd33ef9e4edaf23e2c3bc9e39ecd78
SHA256 a307318a64ae2d0c6bc51ed6416f5cfe2756b414056fa316e1a3d2829e1d4568
SHA512 aa41c3eb49fb3bd4dbdfd9fefebd19f7e71f1940f507434e577470d0c5dcdae950788cc091229b61444d7d5db6f4487061070149486f17f2be51782b60932925

memory/696-22-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/2144-21-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/696-24-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/696-23-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/696-25-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/696-26-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/696-27-0x00000000746F0000-0x0000000074CA1000-memory.dmp

memory/696-29-0x00000000746F0000-0x0000000074CA1000-memory.dmp