Malware Analysis Report

2025-01-03 07:46

Sample ID 230421-llgpaafa24
Target SOLICITUD DE PRESUPUESTO-21-04-23.exe
SHA256 3f6604df64307223a9a72e68f28c14d3cbf5af90549667839622b8e3490fbe8b
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3f6604df64307223a9a72e68f28c14d3cbf5af90549667839622b8e3490fbe8b

Threat Level: Known bad

The file SOLICITUD DE PRESUPUESTO-21-04-23.exe was found to be: Known bad.

Malicious Activity Summary

blustealer stormkitty collection spyware stealer

BluStealer

StormKitty payload

StormKitty

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

outlook_win_path

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Checks processor information in registry

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-21 09:37

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-21 09:37

Reported

2023-04-21 09:39

Platform

win10v2004-20230220-en

Max time kernel

150s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe"

Signatures

BluStealer

stealer blustealer

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-1-5-21-1013461898-3711306144-4198452673-1000\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-1-5-21-1013461898-3711306144-4198452673-1000\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-1-5-21-1013461898-3711306144-4198452673-1000\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\Aspnet_compiler.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1500 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1500 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1500 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1500 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1500 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1500 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1500 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1500 wrote to memory of 4456 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 4456 wrote to memory of 4368 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4456 wrote to memory of 4368 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4456 wrote to memory of 4368 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4456 wrote to memory of 4368 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4456 wrote to memory of 4368 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\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-1-5-21-1013461898-3711306144-4198452673-1000\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\SOLICITUD DE PRESUPUESTO-21-04-23.exe

"C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe"

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.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 8.8.8.8:53 123.108.74.40.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.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 97.17.167.52.in-addr.arpa udp
US 40.77.2.164:443 tcp
US 93.184.221.240:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 2.77.109.52.in-addr.arpa udp
US 67.24.33.254:80 tcp
US 67.24.33.254:80 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp

Files

memory/1500-133-0x0000011832FD0000-0x0000011832FFC000-memory.dmp

memory/4456-134-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4456-137-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4456-140-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4368-141-0x0000000000C10000-0x0000000000C2A000-memory.dmp

memory/4368-142-0x0000000005050000-0x00000000050B6000-memory.dmp

memory/4368-143-0x0000000005A30000-0x0000000005ACC000-memory.dmp

memory/4456-145-0x0000000000400000-0x0000000000424000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-21 09:37

Reported

2023-04-21 09:39

Platform

win7-20230220-en

Max time kernel

130s

Max time network

32s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.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

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\Aspnet_compiler.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1728 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1704 wrote to memory of 1520 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.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\SOLICITUD DE PRESUPUESTO-21-04-23.exe

"C:\Users\Admin\AppData\Local\Temp\SOLICITUD DE PRESUPUESTO-21-04-23.exe"

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.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/1728-54-0x0000000000CF0000-0x0000000000D1C000-memory.dmp

memory/1728-55-0x0000000000740000-0x0000000000750000-memory.dmp

memory/1704-56-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1704-57-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1704-58-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1704-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1704-61-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1704-63-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1704-66-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1520-67-0x00000000000B0000-0x00000000000CA000-memory.dmp

memory/1520-68-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1520-69-0x00000000000B0000-0x00000000000CA000-memory.dmp

memory/1520-71-0x00000000000B0000-0x00000000000CA000-memory.dmp

memory/1520-73-0x00000000000B0000-0x00000000000CA000-memory.dmp

memory/1520-74-0x0000000000B40000-0x0000000000B80000-memory.dmp

memory/1704-75-0x0000000000400000-0x0000000000424000-memory.dmp