Malware Analysis Report

2025-01-03 07:45

Sample ID 230426-kn98yagb94
Target 0FERTA_Y.EXE.exe
SHA256 56fe514e3ea3eda0569cf8b79741fe9ed9b391fe06f07b33d847ccdd7fda18ae
Tags
blustealer stormkitty collection spyware 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

56fe514e3ea3eda0569cf8b79741fe9ed9b391fe06f07b33d847ccdd7fda18ae

Threat Level: Known bad

The file 0FERTA_Y.EXE.exe was found to be: Known bad.

Malicious Activity Summary

blustealer stormkitty collection spyware stealer

StormKitty payload

StormKitty

BluStealer

.NET Reactor proctector

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Unsigned PE

outlook_win_path

Suspicious use of WriteProcessMemory

outlook_office_path

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-26 08:46

Signatures

.NET Reactor proctector

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

2023-04-26 08:46

Reported

2023-04-26 08:48

Platform

win7-20230220-en

Max time kernel

120s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe"

Signatures

BluStealer

stealer blustealer

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

.NET Reactor proctector

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-1-5-21-1563773381-2037468142-1146002597-1000\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-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Looks up external IP address via web service

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

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:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 816 wrote to memory of 2012 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2012 wrote to memory of 1688 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\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-1-5-21-1563773381-2037468142-1146002597-1000\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\0FERTA_Y.EXE.exe

"C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe"

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.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/816-54-0x0000000000870000-0x00000000008A8000-memory.dmp

memory/816-55-0x0000000000140000-0x0000000000150000-memory.dmp

memory/2012-56-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2012-57-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2012-58-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2012-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2012-61-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2012-63-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2012-66-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1688-69-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1688-68-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1688-67-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1688-71-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1688-73-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1688-74-0x0000000000AB0000-0x0000000000AF0000-memory.dmp

memory/2012-75-0x0000000000400000-0x0000000000424000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-26 08:46

Reported

2023-04-26 08:48

Platform

win10v2004-20230220-en

Max time kernel

150s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe"

Signatures

BluStealer

stealer blustealer

StormKitty

stealer stormkitty

StormKitty payload

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

.NET Reactor proctector

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-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Looks up external IP address via web service

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

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:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2088 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2088 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2088 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2088 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2088 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2088 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2088 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2088 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2164 wrote to memory of 4568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2164 wrote to memory of 4568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2164 wrote to memory of 4568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2164 wrote to memory of 4568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2164 wrote to memory of 4568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\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\0FERTA_Y.EXE.exe

"C:\Users\Admin\AppData\Local\Temp\0FERTA_Y.EXE.exe"

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 50.4.107.13.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 icanhazip.com udp
US 104.18.115.97:80 icanhazip.com tcp
US 8.8.8.8:53 97.115.18.104.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 120.208.253.8.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 126.159.241.8.in-addr.arpa udp
US 20.189.173.9:443 tcp
US 8.8.8.8:53 254.5.248.8.in-addr.arpa udp

Files

memory/2088-133-0x0000019BE9760000-0x0000019BE9798000-memory.dmp

memory/2164-134-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2164-137-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2164-140-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4568-141-0x0000000000FC0000-0x0000000000FDA000-memory.dmp

memory/4568-142-0x0000000005540000-0x00000000055A6000-memory.dmp

memory/4568-143-0x0000000006050000-0x00000000060EC000-memory.dmp

memory/2164-145-0x0000000000400000-0x0000000000424000-memory.dmp