Malware Analysis Report

2025-01-03 07:39

Sample ID 230501-xgf3qsfg5v
Target e0236718f5d4d70c2dc485d322834897.bin.bin
SHA256 5a5ac8f9a24fe3d9eb8c6e2bd6d947af89612157cf70302449c3fe787bc7ae76
Tags
blustealer collection stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5a5ac8f9a24fe3d9eb8c6e2bd6d947af89612157cf70302449c3fe787bc7ae76

Threat Level: Known bad

The file e0236718f5d4d70c2dc485d322834897.bin.bin was found to be: Known bad.

Malicious Activity Summary

blustealer collection stealer

BluStealer

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

outlook_office_path

Script User-Agent

Suspicious use of SetWindowsHookEx

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-05-01 18:49

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-01 18:49

Reported

2023-05-01 19:05

Platform

win10v2004-20230220-en

Max time kernel

146s

Max time network

162s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"

Signatures

BluStealer

stealer blustealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\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-1-5-21-2275444769-3691835758-4097679484-1000\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-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe N/A

Enumerates physical storage devices

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4164 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 4164 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 4164 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 4164 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 4164 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 4164 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 4164 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 4164 wrote to memory of 4372 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 4372 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4372 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4372 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4372 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4372 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\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-1-5-21-2275444769-3691835758-4097679484-1000\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\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe

"C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"

C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe

"C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.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 97.97.242.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
NL 8.238.22.254:80 tcp
AU 104.46.162.224:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 6.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.8.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa udp
US 40.125.122.176:443 tcp
NL 8.238.22.254:80 tcp
NL 8.238.22.254:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 35.146.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 24.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 40.125.122.176:443 tcp

Files

memory/4164-133-0x00000000007E0000-0x00000000008C6000-memory.dmp

memory/4164-134-0x0000000005A80000-0x0000000006024000-memory.dmp

memory/4164-135-0x00000000054D0000-0x0000000005562000-memory.dmp

memory/4164-136-0x00000000052F0000-0x0000000005300000-memory.dmp

memory/4164-137-0x00000000052F0000-0x0000000005300000-memory.dmp

memory/4164-138-0x0000000008060000-0x00000000080FC000-memory.dmp

memory/4164-139-0x00000000052F0000-0x0000000005300000-memory.dmp

memory/4372-140-0x0000000000400000-0x000000000046E000-memory.dmp

memory/4372-142-0x0000000000400000-0x000000000046E000-memory.dmp

memory/4372-146-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1108-147-0x0000000000D30000-0x0000000000D96000-memory.dmp

memory/1108-148-0x0000000005700000-0x0000000005710000-memory.dmp

memory/4372-150-0x0000000000400000-0x000000000046E000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-01 18:49

Reported

2023-05-01 19:05

Platform

win7-20230220-en

Max time kernel

75s

Max time network

31s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"

Signatures

BluStealer

stealer blustealer

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

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1156 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1168 wrote to memory of 1756 N/A C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.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\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe

"C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"

C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe

"C:\Users\Admin\AppData\Local\Temp\5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

Network

N/A

Files

memory/1156-54-0x0000000000100000-0x00000000001E6000-memory.dmp

memory/1156-55-0x0000000004B50000-0x0000000004B90000-memory.dmp

memory/1156-56-0x0000000000850000-0x0000000000862000-memory.dmp

memory/1156-57-0x0000000000860000-0x000000000086C000-memory.dmp

memory/1156-58-0x0000000004F60000-0x000000000500C000-memory.dmp

memory/1156-59-0x0000000005010000-0x0000000005086000-memory.dmp

memory/1168-61-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1168-62-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1168-60-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1168-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1168-65-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1168-67-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1156-68-0x0000000004B55000-0x0000000004B73000-memory.dmp

memory/1168-71-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1756-72-0x0000000000130000-0x0000000000196000-memory.dmp

memory/1756-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1756-74-0x0000000000130000-0x0000000000196000-memory.dmp

memory/1756-76-0x0000000000130000-0x0000000000196000-memory.dmp

memory/1756-78-0x0000000000130000-0x0000000000196000-memory.dmp

memory/1756-79-0x0000000000E10000-0x0000000000ECC000-memory.dmp

memory/1756-80-0x0000000004EF0000-0x0000000004F30000-memory.dmp

memory/1168-81-0x0000000000400000-0x000000000046E000-memory.dmp