Malware Analysis Report

2025-01-03 07:46

Sample ID 230424-hr4jfsca41
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

Accesses cryptocurrency files/wallets, possible credential harvesting

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

outlook_win_path

Suspicious use of SetWindowsHookEx

Checks processor information in registry

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-24 06:59

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-24 06:59

Reported

2023-04-24 07:01

Platform

win7-20230220-en

Max time kernel

133s

Max time network

34s

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-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
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

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 1332 wrote to memory of 2036 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 1332 wrote to memory of 2036 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 1332 wrote to memory of 2036 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 1332 wrote to memory of 2036 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 1332 wrote to memory of 2036 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 1332 wrote to memory of 2036 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 1332 wrote to memory of 2036 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 1332 wrote to memory of 2036 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 1332 wrote to memory of 2036 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 2036 wrote to memory of 1844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2036 wrote to memory of 1844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2036 wrote to memory of 1844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2036 wrote to memory of 1844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2036 wrote to memory of 1844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2036 wrote to memory of 1844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2036 wrote to memory of 1844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2036 wrote to memory of 1844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2036 wrote to memory of 1844 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-1-5-21-3499517378-2376672570-1134980332-1000\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\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 icanhazip.com udp
US 104.18.114.97:80 icanhazip.com tcp

Files

memory/1332-54-0x0000000000090000-0x00000000000C4000-memory.dmp

memory/1332-55-0x0000000000190000-0x00000000001A0000-memory.dmp

memory/2036-56-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2036-57-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2036-58-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2036-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2036-61-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2036-63-0x0000000000400000-0x0000000000424000-memory.dmp

memory/2036-66-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1844-68-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1844-69-0x00000000001D0000-0x00000000001EA000-memory.dmp

memory/1844-67-0x00000000001D0000-0x00000000001EA000-memory.dmp

memory/1844-73-0x00000000001D0000-0x00000000001EA000-memory.dmp

memory/1844-71-0x00000000001D0000-0x00000000001EA000-memory.dmp

memory/1844-74-0x0000000004DD0000-0x0000000004E10000-memory.dmp

memory/2036-75-0x0000000000400000-0x0000000000424000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-24 06:59

Reported

2023-04-24 07:01

Platform

win10v2004-20230221-en

Max time kernel

150s

Max time network

146s

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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 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
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 4352 wrote to memory of 4400 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 4352 wrote to memory of 4400 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 4352 wrote to memory of 4400 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 4352 wrote to memory of 648 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 4352 wrote to memory of 648 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 4352 wrote to memory of 648 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 4352 wrote to memory of 648 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 4352 wrote to memory of 648 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 4352 wrote to memory of 648 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 4352 wrote to memory of 648 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 4352 wrote to memory of 648 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 648 wrote to memory of 644 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 648 wrote to memory of 644 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 648 wrote to memory of 644 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 648 wrote to memory of 644 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 648 wrote to memory of 644 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\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 8.8.8.8:53 176.122.125.40.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 93.184.221.240:80 tcp
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 93.184.221.240:80 tcp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 20.189.173.4:443 tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.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
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp

Files

memory/4352-133-0x000001DCC8080000-0x000001DCC80B4000-memory.dmp

memory/648-134-0x0000000000400000-0x0000000000424000-memory.dmp

memory/648-137-0x0000000000400000-0x0000000000424000-memory.dmp

memory/648-140-0x0000000000400000-0x0000000000424000-memory.dmp

memory/644-141-0x0000000001200000-0x000000000121A000-memory.dmp

memory/644-142-0x0000000005780000-0x00000000057E6000-memory.dmp

memory/644-143-0x0000000006130000-0x00000000061CC000-memory.dmp

memory/648-145-0x0000000000400000-0x0000000000424000-memory.dmp