Malware Analysis Report

2025-01-03 07:46

Sample ID 230421-njt8psfc54
Target SOLICITUD DE PRESUPUESTO-21-04-23.ISO.iso
SHA256 35cd45fe0886a34247586537bf5b1aed29f5a8e40cb7055f715e052e9084543a
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

35cd45fe0886a34247586537bf5b1aed29f5a8e40cb7055f715e052e9084543a

Threat Level: Known bad

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

Malicious Activity Summary

blustealer stormkitty collection spyware stealer

BluStealer

StormKitty

StormKitty payload

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Suspicious use of SetWindowsHookEx

outlook_win_path

outlook_office_path

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-21 11:26

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-21 11:26

Reported

2023-04-21 11:28

Platform

win7-20230220-en

Max time kernel

124s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SOLICITU.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-1-5-21-3499517378-2376672570-1134980332-1000\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-1-5-21-3499517378-2376672570-1134980332-1000\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-1-5-21-3499517378-2376672570-1134980332-1000\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 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1204 wrote to memory of 2024 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 2024 wrote to memory of 1364 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2024 wrote to memory of 1364 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2024 wrote to memory of 1364 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2024 wrote to memory of 1364 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2024 wrote to memory of 1364 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2024 wrote to memory of 1364 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2024 wrote to memory of 1364 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2024 wrote to memory of 1364 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2024 wrote to memory of 1364 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-1-5-21-3499517378-2376672570-1134980332-1000\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-1-5-21-3499517378-2376672570-1134980332-1000\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\SOLICITU.exe

"C:\Users\Admin\AppData\Local\Temp\SOLICITU.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/1204-54-0x0000000000C60000-0x0000000000C8C000-memory.dmp

memory/1204-55-0x0000000000740000-0x0000000000750000-memory.dmp

memory/2024-56-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2024-57-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2024-58-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2024-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2024-61-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2024-63-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1364-67-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1364-66-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1364-68-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1364-70-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1364-72-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/2024-73-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1364-74-0x0000000000E70000-0x0000000000EB0000-memory.dmp

memory/2024-75-0x0000000000400000-0x0000000000424000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-21 11:26

Reported

2023-04-21 11:28

Platform

win10v2004-20230220-en

Max time kernel

150s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SOLICITU.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-1-5-21-1529757233-3489015626-3409890339-1000\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-1-5-21-1529757233-3489015626-3409890339-1000\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-1-5-21-1529757233-3489015626-3409890339-1000\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 4268 wrote to memory of 1064 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 4268 wrote to memory of 1064 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 4268 wrote to memory of 1064 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 4268 wrote to memory of 1064 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 4268 wrote to memory of 1064 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 4268 wrote to memory of 1064 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 4268 wrote to memory of 1064 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 4268 wrote to memory of 1064 N/A C:\Users\Admin\AppData\Local\Temp\SOLICITU.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
PID 1064 wrote to memory of 2660 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1064 wrote to memory of 2660 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1064 wrote to memory of 2660 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1064 wrote to memory of 2660 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1064 wrote to memory of 2660 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-1-5-21-1529757233-3489015626-3409890339-1000\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-1-5-21-1529757233-3489015626-3409890339-1000\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\SOLICITU.exe

"C:\Users\Admin\AppData\Local\Temp\SOLICITU.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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.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 104.18.114.97:80 icanhazip.com tcp
US 8.8.8.8:53 97.114.18.104.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
IE 13.69.239.73:443 tcp
US 8.8.8.8:53 44.8.109.52.in-addr.arpa udp
US 93.184.221.240:80 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

Files

memory/4268-133-0x0000025C0B430000-0x0000025C0B45C000-memory.dmp

memory/1064-134-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4268-136-0x0000025C258E0000-0x0000025C25A2E000-memory.dmp

memory/1064-138-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2660-141-0x0000000000B30000-0x0000000000B4A000-memory.dmp

memory/1064-142-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2660-143-0x00000000050E0000-0x0000000005146000-memory.dmp

memory/2660-144-0x0000000005270000-0x0000000005280000-memory.dmp

memory/2660-145-0x0000000005950000-0x00000000059EC000-memory.dmp

memory/1064-147-0x0000000000400000-0x0000000000424000-memory.dmp