Malware Analysis Report

2025-06-16 03:31

Sample ID 220812-lm7l4abfdq
Target Halkbank_Ekstre_20210706_142426_2309801.doc.exe
SHA256 1fa00eab8fe9ab441e2bbc0be43c34a77724c3a0b580b733ecdbe89a3e0d03b7
Tags
blustealer stormkitty collection 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

1fa00eab8fe9ab441e2bbc0be43c34a77724c3a0b580b733ecdbe89a3e0d03b7

Threat Level: Known bad

The file Halkbank_Ekstre_20210706_142426_2309801.doc.exe was found to be: Known bad.

Malicious Activity Summary

blustealer stormkitty collection stealer

StormKitty payload

BluStealer

StormKitty

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Enumerates physical storage devices

outlook_office_path

outlook_win_path

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-12 09:40

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-12 09:40

Reported

2022-08-12 09:42

Platform

win7-20220718-en

Max time kernel

142s

Max time network

76s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.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
N/A N/A N/A N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\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-1-5-21-4084403625-2215941253-1760665084-1000\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-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A icanhazip.com N/A N/A

Enumerates physical storage devices

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 use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.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:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 2008 wrote to memory of 1332 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1332 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\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-1-5-21-4084403625-2215941253-1760665084-1000\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\Halkbank_Ekstre_20210706_142426_2309801.doc.exe

"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe"

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe

"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.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/2008-54-0x0000000000E30000-0x0000000000ED4000-memory.dmp

memory/2008-55-0x0000000075761000-0x0000000075763000-memory.dmp

memory/2008-56-0x0000000000470000-0x0000000000494000-memory.dmp

memory/2008-57-0x0000000000B40000-0x0000000000B4C000-memory.dmp

memory/2008-58-0x0000000004F10000-0x0000000004F76000-memory.dmp

memory/2008-59-0x0000000004A50000-0x0000000004A78000-memory.dmp

memory/1332-60-0x0000000000400000-0x0000000000421000-memory.dmp

memory/1332-61-0x0000000000400000-0x0000000000421000-memory.dmp

memory/1332-63-0x0000000000400000-0x0000000000421000-memory.dmp

memory/1332-65-0x0000000000400000-0x0000000000421000-memory.dmp

memory/1332-66-0x00000000004019AC-mapping.dmp

memory/1332-68-0x0000000000400000-0x0000000000421000-memory.dmp

memory/916-72-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/916-74-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/916-75-0x00000000000A4F6E-mapping.dmp

memory/916-77-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/916-79-0x0000000000090000-0x00000000000AA000-memory.dmp

memory/1332-81-0x0000000000400000-0x0000000000421000-memory.dmp

memory/1332-82-0x0000000000400000-0x0000000000421000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-12 09:40

Reported

2022-08-12 09:42

Platform

win10v2004-20220721-en

Max time kernel

150s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.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-1-5-21-2660308776-3705150086-26593515-1000\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-1-5-21-2660308776-3705150086-26593515-1000\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-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A icanhazip.com N/A N/A

Enumerates physical storage devices

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:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.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:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3984 wrote to memory of 1448 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 1448 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 1448 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 3984 wrote to memory of 4616 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe
PID 4616 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4616 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4616 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4616 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4616 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\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-1-5-21-2660308776-3705150086-26593515-1000\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\Halkbank_Ekstre_20210706_142426_2309801.doc.exe

"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe"

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe

"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe"

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe

"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.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 67.27.133.254:80 tcp
US 67.27.133.254:80 tcp
NL 20.50.201.200:443 tcp
FR 2.18.109.224:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
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

Files

memory/3984-130-0x0000000000C20000-0x0000000000CC4000-memory.dmp

memory/3984-131-0x0000000005B20000-0x00000000060C4000-memory.dmp

memory/3984-132-0x0000000005650000-0x00000000056E2000-memory.dmp

memory/3984-133-0x0000000005700000-0x000000000570A000-memory.dmp

memory/3984-134-0x0000000007E60000-0x0000000007EFC000-memory.dmp

memory/3984-135-0x0000000008170000-0x00000000081D6000-memory.dmp

memory/1448-136-0x0000000000000000-mapping.dmp

memory/4616-137-0x0000000000000000-mapping.dmp

memory/4616-138-0x0000000000400000-0x0000000000421000-memory.dmp

memory/4616-140-0x0000000000400000-0x0000000000421000-memory.dmp

memory/4616-143-0x0000000000400000-0x0000000000421000-memory.dmp

memory/1224-144-0x0000000000000000-mapping.dmp

memory/1224-145-0x0000000000BB0000-0x0000000000BCA000-memory.dmp

memory/4616-146-0x0000000000400000-0x0000000000421000-memory.dmp