Malware Analysis Report

2025-01-03 07:40

Sample ID 230430-2n3brsfc96
Target 0ferta y demanda_CIF--B-62326O21.exe.bin
SHA256 56fe514e3ea3eda0569cf8b79741fe9ed9b391fe06f07b33d847ccdd7fda18ae
Tags
blustealer stormkitty collection spyware stealer redline infostealer
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.bin was found to be: Known bad.

Malicious Activity Summary

blustealer stormkitty collection spyware stealer redline infostealer

BluStealer

RedLine

StormKitty payload

Detects Redline Stealer samples

StormKitty

.NET Reactor proctector

Accesses Microsoft Outlook profiles

Accesses cryptocurrency files/wallets, possible credential harvesting

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Checks processor information in registry

Suspicious use of WriteProcessMemory

outlook_win_path

Suspicious use of SetWindowsHookEx

outlook_office_path

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-30 22:44

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

2023-04-30 22:44

Reported

2023-04-30 23:02

Platform

win7-20230220-en

Max time kernel

136s

Max time network

60s

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-1-5-21-1914912747-3343861975-731272777-1000\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-1-5-21-1914912747-3343861975-731272777-1000\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-1-5-21-1914912747-3343861975-731272777-1000\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 1856 wrote to memory of 1628 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 1856 wrote to memory of 1628 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 1856 wrote to memory of 1628 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 1856 wrote to memory of 1628 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 1856 wrote to memory of 1628 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 1856 wrote to memory of 1628 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 1856 wrote to memory of 1628 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 1856 wrote to memory of 1628 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 1856 wrote to memory of 1628 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 1628 wrote to memory of 948 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1628 wrote to memory of 948 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1628 wrote to memory of 948 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1628 wrote to memory of 948 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1628 wrote to memory of 948 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1628 wrote to memory of 948 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1628 wrote to memory of 948 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1628 wrote to memory of 948 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1628 wrote to memory of 948 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-1-5-21-1914912747-3343861975-731272777-1000\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-1-5-21-1914912747-3343861975-731272777-1000\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 104.18.115.97:80 icanhazip.com tcp

Files

memory/1856-54-0x00000000008F0000-0x0000000000928000-memory.dmp

memory/1856-55-0x000000001B130000-0x000000001B1B0000-memory.dmp

memory/1856-56-0x00000000008D0000-0x00000000008E0000-memory.dmp

memory/1628-57-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1628-58-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1628-59-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1628-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1628-62-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1628-64-0x0000000000400000-0x0000000000424000-memory.dmp

memory/948-67-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/948-68-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/948-69-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/948-71-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/948-73-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1628-74-0x0000000000400000-0x0000000000424000-memory.dmp

memory/948-75-0x0000000004900000-0x0000000004940000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-30 22:44

Reported

2023-04-30 23:02

Platform

win10v2004-20230220-en

Max time kernel

151s

Max time network

139s

Command Line

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

Signatures

BluStealer

stealer blustealer

Detects Redline Stealer samples

stealer
Description Indicator Process Target
N/A N/A N/A N/A

RedLine

infostealer redline

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-1-5-21-1529757233-3489015626-3409890339-1000\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\Caspol.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2288 wrote to memory of 1468 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 2288 wrote to memory of 1468 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 2288 wrote to memory of 1468 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 2288 wrote to memory of 1468 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 2288 wrote to memory of 1468 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 2288 wrote to memory of 1468 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 2288 wrote to memory of 1468 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 2288 wrote to memory of 1468 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 1468 wrote to memory of 4716 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1468 wrote to memory of 4716 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1468 wrote to memory of 4716 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1468 wrote to memory of 4716 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1468 wrote to memory of 4716 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-1-5-21-1529757233-3489015626-3409890339-1000\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\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 8.8.8.8:53 121.252.72.23.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 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
IE 52.109.77.1:443 tcp
US 104.18.114.97:80 icanhazip.com tcp
US 20.189.173.11:443 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
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 63.13.109.52.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 126.211.247.8.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp

Files

memory/2288-133-0x0000018F6FBF0000-0x0000018F6FC28000-memory.dmp

memory/1468-134-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1468-137-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4716-140-0x0000000000DC0000-0x0000000000DDA000-memory.dmp

memory/4716-141-0x00000000055F0000-0x0000000005656000-memory.dmp

memory/4716-142-0x0000000005740000-0x0000000005750000-memory.dmp

memory/1468-143-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4716-144-0x0000000005740000-0x0000000005750000-memory.dmp

memory/4716-145-0x0000000005E30000-0x0000000005ECC000-memory.dmp