Malware Analysis Report

2025-01-03 07:45

Sample ID 230424-hr1skaac84
Target S0LICITUD DE PRESUPUESTO-24-04-23.exe
SHA256 2178c25cf14793aa8845ca8ee9f76d3271c91bc5eb763e97919415f9fb7d5e1d
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

2178c25cf14793aa8845ca8ee9f76d3271c91bc5eb763e97919415f9fb7d5e1d

Threat Level: Known bad

The file S0LICITUD DE PRESUPUESTO-24-04-23.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 cryptocurrency files/wallets, possible credential harvesting

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

outlook_win_path

Suspicious use of AdjustPrivilegeToken

Checks processor information in registry

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-24 06:58

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-24 06:58

Reported

2023-04-24 07:01

Platform

win7-20230220-en

Max time kernel

118s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.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\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\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

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 behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe N/A
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 2032 wrote to memory of 656 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 656 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 656 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 656 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 2032 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 860 wrote to memory of 568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 860 wrote to memory of 568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 860 wrote to memory of 568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 860 wrote to memory of 568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 860 wrote to memory of 568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 860 wrote to memory of 568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 860 wrote to memory of 568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 860 wrote to memory of 568 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 860 wrote to memory of 568 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\S0LICITUD DE PRESUPUESTO-24-04-23.exe

"C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.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\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/2032-54-0x0000000000250000-0x0000000000284000-memory.dmp

memory/2032-55-0x0000000000290000-0x00000000002A0000-memory.dmp

memory/860-56-0x0000000000400000-0x0000000000424000-memory.dmp

memory/860-57-0x0000000000400000-0x0000000000424000-memory.dmp

memory/860-58-0x0000000000400000-0x0000000000424000-memory.dmp

memory/860-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/860-61-0x0000000000400000-0x0000000000424000-memory.dmp

memory/860-63-0x0000000000400000-0x0000000000424000-memory.dmp

memory/860-66-0x0000000000400000-0x0000000000424000-memory.dmp

memory/568-67-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/568-68-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/568-69-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/568-71-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/568-73-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/568-74-0x00000000005B0000-0x00000000005F0000-memory.dmp

memory/860-75-0x0000000000400000-0x0000000000424000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-24 06:58

Reported

2023-04-24 07:01

Platform

win10v2004-20230221-en

Max time kernel

150s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.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-1-5-21-2805025096-2326403612-4231045514-1000\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-1-5-21-2805025096-2326403612-4231045514-1000\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-1-5-21-2805025096-2326403612-4231045514-1000\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 1968 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1968 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1968 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1968 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1968 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1968 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1968 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 1968 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
PID 4064 wrote to memory of 4588 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4064 wrote to memory of 4588 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4064 wrote to memory of 4588 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4064 wrote to memory of 4588 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4064 wrote to memory of 4588 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-1-5-21-2805025096-2326403612-4231045514-1000\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-1-5-21-2805025096-2326403612-4231045514-1000\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\S0LICITUD DE PRESUPUESTO-24-04-23.exe

"C:\Users\Admin\AppData\Local\Temp\S0LICITUD DE PRESUPUESTO-24-04-23.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 8.8.8.8:53 104.219.191.52.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 93.184.220.29:80 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 123.108.74.40.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
IE 20.54.89.15:443 tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 0.77.109.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.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/1968-133-0x0000019603ED0000-0x0000019603F04000-memory.dmp

memory/4064-134-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4064-137-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4588-140-0x00000000003A0000-0x00000000003BA000-memory.dmp

memory/4588-141-0x0000000002920000-0x0000000002986000-memory.dmp

memory/4064-142-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4588-143-0x0000000005640000-0x00000000056DC000-memory.dmp

memory/4064-145-0x0000000000400000-0x0000000000424000-memory.dmp