Malware Analysis Report

2025-06-16 03:31

Sample ID 220812-grj95sbhh7
Target 4736-137-0x0000000000400000-0x0000000000421000-memory.dmp
SHA256 4c05eccdf631718494acad0f088c54be2d1c13ec3e42e6ce21783a83fd3561b4
Tags
blustealer stormkitty collection stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

4c05eccdf631718494acad0f088c54be2d1c13ec3e42e6ce21783a83fd3561b4

Threat Level: Known bad

The file 4736-137-0x0000000000400000-0x0000000000421000-memory.dmp was found to be: Known bad.

Malicious Activity Summary

blustealer stormkitty collection stealer

StormKitty payload

Blustealer family

StormKitty

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-12 06:02

Signatures

Blustealer family

blustealer

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-12 06:02

Reported

2022-08-12 06:04

Platform

win7-20220718-en

Max time kernel

79s

Max time network

45s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe"

Signatures

StormKitty

stealer stormkitty

StormKitty payload

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

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A icanhazip.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1420 set thread context of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1420 wrote to memory of 1328 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe

"C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 icanhazip.com udp
US 104.18.115.97:80 icanhazip.com tcp

Files

memory/1420-56-0x0000000075B61000-0x0000000075B63000-memory.dmp

memory/1328-57-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1328-59-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1328-60-0x00000000000A4F6E-mapping.dmp

memory/1328-62-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1328-64-0x0000000000090000-0x00000000000AA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-12 06:02

Reported

2022-08-12 06:04

Platform

win10v2004-20220721-en

Max time kernel

154s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe"

Signatures

StormKitty

stealer stormkitty

StormKitty payload

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

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A icanhazip.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3032 set thread context of 3556 N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe

"C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

Network

Country Destination Domain Proto
US 93.184.221.240:80 tcp
US 8.8.8.8:53 icanhazip.com udp
US 104.18.114.97:80 icanhazip.com tcp
US 20.189.173.3:443 tcp
US 8.253.135.120:80 tcp

Files

memory/3556-132-0x0000000000000000-mapping.dmp

memory/3556-133-0x0000000000190000-0x00000000001AA000-memory.dmp

memory/3556-134-0x0000000004B00000-0x0000000004B66000-memory.dmp

memory/3556-135-0x00000000053D0000-0x000000000546C000-memory.dmp