Malware Analysis Report

2025-01-03 07:46

Sample ID 230426-jxwlgahh6v
Target 0ferta y demanda_CIF--B-62326O21.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 demanda_CIF--B-62326O21.exe was found to be: Known bad.

Malicious Activity Summary

blustealer stormkitty collection spyware stealer

StormKitty payload

BluStealer

StormKitty

.NET Reactor proctector

Accesses cryptocurrency files/wallets, possible credential harvesting

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Checks processor information in registry

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-26 08:03

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 08:03

Reported

2023-04-26 08:05

Platform

win7-20230220-en

Max time kernel

149s

Max time network

30s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.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
N/A N/A N/A N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\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-1-5-21-2647223082-2067913677-935928954-1000\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-1-5-21-2647223082-2067913677-935928954-1000\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 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2028 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1172 wrote to memory of 672 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1172 wrote to memory of 672 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1172 wrote to memory of 672 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1172 wrote to memory of 672 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1172 wrote to memory of 672 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1172 wrote to memory of 672 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1172 wrote to memory of 672 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1172 wrote to memory of 672 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1172 wrote to memory of 672 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-1-5-21-2647223082-2067913677-935928954-1000\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-1-5-21-2647223082-2067913677-935928954-1000\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 demanda_CIF--B-62326O21.exe

"C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.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 104.18.114.97:80 icanhazip.com tcp

Files

memory/2028-54-0x0000000000B20000-0x0000000000B58000-memory.dmp

memory/2028-55-0x0000000000740000-0x0000000000750000-memory.dmp

memory/1172-56-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2028-57-0x000000001BE10000-0x000000001BE90000-memory.dmp

memory/1172-58-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1172-59-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1172-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1172-62-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1172-64-0x0000000000400000-0x0000000000424000-memory.dmp

memory/672-67-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/672-68-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/672-69-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/672-71-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/672-73-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1172-74-0x0000000000400000-0x0000000000424000-memory.dmp

memory/672-75-0x0000000000BD0000-0x0000000000C10000-memory.dmp

memory/1172-76-0x0000000000400000-0x0000000000424000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-26 08:03

Reported

2023-04-26 08:06

Platform

win10v2004-20230220-en

Max time kernel

150s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.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-1-5-21-2275444769-3691835758-4097679484-1000\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-1-5-21-2275444769-3691835758-4097679484-1000\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-1-5-21-2275444769-3691835758-4097679484-1000\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 3888 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 3888 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 3888 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 3888 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 3888 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 3888 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 3888 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 3888 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1012 wrote to memory of 1632 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1012 wrote to memory of 1632 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1012 wrote to memory of 1632 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1012 wrote to memory of 1632 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1012 wrote to memory of 1632 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-1-5-21-2275444769-3691835758-4097679484-1000\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-1-5-21-2275444769-3691835758-4097679484-1000\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 demanda_CIF--B-62326O21.exe

"C:\Users\Admin\AppData\Local\Temp\0ferta y demanda_CIF--B-62326O21.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 67.24.35.254:80 tcp
US 8.8.8.8:53 97.17.167.52.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 icanhazip.com udp
US 104.18.114.97:80 icanhazip.com tcp
US 8.8.8.8:53 97.114.18.104.in-addr.arpa udp
US 52.152.110.14:443 tcp
US 20.189.173.9:443 tcp
US 67.24.35.254:80 tcp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 203.151.224.20.in-addr.arpa udp
US 67.24.35.254:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp

Files

memory/3888-133-0x000001CAC96D0000-0x000001CAC9708000-memory.dmp

memory/1012-134-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1012-137-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1012-140-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1632-141-0x0000000000B10000-0x0000000000B2A000-memory.dmp

memory/1632-142-0x00000000053C0000-0x0000000005426000-memory.dmp

memory/1632-143-0x0000000005E90000-0x0000000005F2C000-memory.dmp

memory/1632-144-0x00000000054B0000-0x00000000054C0000-memory.dmp

memory/1012-146-0x0000000000400000-0x0000000000424000-memory.dmp