Malware Analysis Report

2024-10-23 19:39

Sample ID 240815-b3lpfsshlr
Target dfc22ad60a3e5c942e56e20a9b634aa0N.exe
SHA256 ad519fbe45377b1ba91db0b8bf615a733950433ad6b913f6dda64e1b9f6fa9f8
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

ad519fbe45377b1ba91db0b8bf615a733950433ad6b913f6dda64e1b9f6fa9f8

Threat Level: Known bad

The file dfc22ad60a3e5c942e56e20a9b634aa0N.exe was found to be: Known bad.

Malicious Activity Summary

nanocore discovery evasion keylogger persistence spyware stealer trojan

NanoCore

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-15 01:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-15 01:40

Reported

2024-08-15 01:42

Platform

win7-20240705-en

Max time kernel

118s

Max time network

27s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.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-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.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 2768 set thread context of 2448 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\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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.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 2252 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2252 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2252 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2252 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2252 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2252 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2252 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2768 wrote to memory of 2448 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\dfc22ad60a3e5c942e56e20a9b634aa0N.exe

"C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.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/2252-0-0x00000000748E1000-0x00000000748E2000-memory.dmp

memory/2252-1-0x00000000748E0000-0x0000000074E8B000-memory.dmp

memory/2252-2-0x00000000748E0000-0x0000000074E8B000-memory.dmp

memory/2252-3-0x00000000748E0000-0x0000000074E8B000-memory.dmp

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

MD5 1fa19948812447d0ebfc6ee1ba472e84
SHA1 75370d75f473db15d32169e7828f9e7478a182f6
SHA256 9a08e0a0a4c17562129e5731c7c2e25360f9613b775f5fbc444a2564ce509462
SHA512 4c976b7b2db8a44422300e03d21185ac2e0b01f929cdb68ee33926898caf97630e30e3d2fb89becf0f4b2cd320f899d4a9db1c964b6c4df9f734f6134ab8de36

memory/2768-13-0x00000000748E0000-0x0000000074E8B000-memory.dmp

memory/2252-12-0x00000000748E0000-0x0000000074E8B000-memory.dmp

memory/2768-14-0x00000000748E0000-0x0000000074E8B000-memory.dmp

memory/2448-16-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2448-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2448-32-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2448-30-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2448-24-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2448-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2448-20-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2448-18-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2768-34-0x00000000748E0000-0x0000000074E8B000-memory.dmp

memory/2768-35-0x00000000748E0000-0x0000000074E8B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-15 01:40

Reported

2024-08-15 01:42

Platform

win10v2004-20240802-en

Max time kernel

114s

Max time network

116s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.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\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.exe

"C:\Users\Admin\AppData\Local\Temp\dfc22ad60a3e5c942e56e20a9b634aa0N.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 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/1256-0-0x0000000074C92000-0x0000000074C93000-memory.dmp

memory/1256-1-0x0000000074C90000-0x0000000075241000-memory.dmp

memory/1256-2-0x0000000074C90000-0x0000000075241000-memory.dmp

memory/1256-3-0x0000000074C90000-0x0000000075241000-memory.dmp

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

MD5 0384a1616c3b7794892f88e46c4ca743
SHA1 950bcd5a65e9196c4342c31b057f2c402deaeefd
SHA256 9a34d6202e02051d366306bc21a08bc51ea46f7e41c1dcedbf9308da531b06ce
SHA512 46f3e4e83fec944dc3e71c70014c11ceea992dc12e01e804fb77f242b4a7fa0832f083838cee5d5a39099c81d50937de1d5a0410169ef0a44befc030b4076dc7

memory/2952-18-0x0000000074C90000-0x0000000075241000-memory.dmp

memory/1256-17-0x0000000074C90000-0x0000000075241000-memory.dmp

memory/2952-19-0x0000000074C90000-0x0000000075241000-memory.dmp

memory/2952-21-0x0000000074C90000-0x0000000075241000-memory.dmp