Malware Analysis Report

2024-10-19 07:05

Sample ID 240806-qljk4athjd
Target af7725b565f71dcbfe2f9bcc60e3f340N.exe
SHA256 1a84b72b5406476c01592b4280823ab4da801383000155e8e809df6508b1dedc
Tags
discovery persistence nanocore evasion keylogger 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

1a84b72b5406476c01592b4280823ab4da801383000155e8e809df6508b1dedc

Threat Level: Known bad

The file af7725b565f71dcbfe2f9bcc60e3f340N.exe was found to be: Known bad.

Malicious Activity Summary

discovery persistence nanocore evasion keylogger 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

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-06 13:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 13:20

Reported

2024-08-06 13:22

Platform

win7-20240708-en

Max time kernel

35s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe"

Signatures

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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.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\af7725b565f71dcbfe2f9bcc60e3f340N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2360 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2360 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2360 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2360 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2360 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2360 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2360 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2668 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2668 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2668 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2668 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2668 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2668 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2668 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\af7725b565f71dcbfe2f9bcc60e3f340N.exe

"C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.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

N/A

Files

memory/2360-0-0x00000000740C1000-0x00000000740C2000-memory.dmp

memory/2360-1-0x00000000740C0000-0x000000007466B000-memory.dmp

memory/2360-2-0x00000000740C0000-0x000000007466B000-memory.dmp

memory/2360-3-0x00000000740C0000-0x000000007466B000-memory.dmp

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

MD5 4f055e73394029ee3e38f32c92b23b6e
SHA1 a4f3626c3f8eebd3bd756385eae0f11c98328c60
SHA256 86929b616d9b4029bdc169993ff6bee69179d518ac32b1cfe7a6564aeb39c777
SHA512 09f682a6345b88b43d47ce652111daf9e55f7262bad43ec4a66a3c9ca358c871f8dfe156e95a0cb7a8e5f3075ff4b67696565ea04ba662120f04821ea332e345

memory/2716-13-0x00000000740C0000-0x000000007466B000-memory.dmp

memory/2360-12-0x00000000740C0000-0x000000007466B000-memory.dmp

memory/2716-14-0x00000000740C0000-0x000000007466B000-memory.dmp

memory/2716-15-0x00000000740C0000-0x000000007466B000-memory.dmp

memory/2716-17-0x00000000740C0000-0x000000007466B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 13:20

Reported

2024-08-06 13:22

Platform

win10v2004-20240802-en

Max time kernel

119s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

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\af7725b565f71dcbfe2f9bcc60e3f340N.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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.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 3976 set thread context of 4780 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\af7725b565f71dcbfe2f9bcc60e3f340N.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 2020 wrote to memory of 3976 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2020 wrote to memory of 3976 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2020 wrote to memory of 3976 N/A C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3976 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3976 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3976 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3976 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3976 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3976 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3976 wrote to memory of 4780 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 3976 wrote to memory of 4780 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\af7725b565f71dcbfe2f9bcc60e3f340N.exe

"C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 sysupdate24.ddns.net udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/2020-0-0x0000000074722000-0x0000000074723000-memory.dmp

memory/2020-1-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/2020-2-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/2020-3-0x0000000074720000-0x0000000074CD1000-memory.dmp

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

MD5 ecf7c0028a884f2b8b9fa0524d20292e
SHA1 655f1ee7d78372711f6022393e837d5ac98913ab
SHA256 92e60c53706fc1f63ec5755667b11ce8be2df8aafa90437118565f7d8ba955ac
SHA512 d49c257528835235afc0775a5103b0af5c29a927f9f007b235da02ab29bafe687b5b7ea1f76e0b0c5012e0262910f23df7b32cbdbe99e8575388ab3a419c07fa

memory/2020-17-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/3976-18-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/3976-19-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/3976-20-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/4780-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4780-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4780-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4780-26-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/4780-27-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/4780-28-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/4780-30-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/3976-31-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/3976-33-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/4780-34-0x0000000074720000-0x0000000074CD1000-memory.dmp

memory/4780-35-0x0000000074720000-0x0000000074CD1000-memory.dmp