Malware Analysis Report

2025-01-03 07:49

Sample ID 230430-3ny5sabh5v
Target 3d695f1b4db5a0635d43e1cd1b9d48ae.bin.bin
SHA256 f4537ab3fdeb176d352dca40facb96f493d634f7d03140e2275be2ea33678e33
Tags
blustealer 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

f4537ab3fdeb176d352dca40facb96f493d634f7d03140e2275be2ea33678e33

Threat Level: Known bad

The file 3d695f1b4db5a0635d43e1cd1b9d48ae.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 SetWindowsHookEx

outlook_office_path

Script User-Agent

Suspicious use of WriteProcessMemory

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-30 23:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-30 23:40

Reported

2023-05-01 00:12

Platform

win7-20230220-en

Max time kernel

65s

Max time network

34s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe"

Signatures

BluStealer

stealer blustealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\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-1-5-21-1283023626-844874658-3193756055-1000\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-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\Outlook\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\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1220 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1160 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\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-1-5-21-1283023626-844874658-3193756055-1000\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\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe

"C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe"

C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe

"C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.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/1220-54-0x00000000000B0000-0x000000000018C000-memory.dmp

memory/1220-55-0x0000000005030000-0x0000000005070000-memory.dmp

memory/1220-56-0x0000000000430000-0x0000000000444000-memory.dmp

memory/1220-57-0x0000000005030000-0x0000000005070000-memory.dmp

memory/1220-58-0x0000000000440000-0x000000000044C000-memory.dmp

memory/1220-59-0x00000000052C0000-0x000000000536C000-memory.dmp

memory/1220-60-0x0000000004AC0000-0x0000000004B36000-memory.dmp

memory/1160-61-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1160-62-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1160-63-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1160-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1160-66-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1160-68-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1160-71-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1344-72-0x0000000000090000-0x00000000000F6000-memory.dmp

memory/1344-74-0x0000000000090000-0x00000000000F6000-memory.dmp

memory/1344-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/1344-76-0x0000000000090000-0x00000000000F6000-memory.dmp

memory/1344-78-0x0000000000090000-0x00000000000F6000-memory.dmp

memory/1344-79-0x00000000024A0000-0x000000000255C000-memory.dmp

memory/1160-80-0x0000000000400000-0x000000000046E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-30 23:40

Reported

2023-05-01 00:12

Platform

win10v2004-20230220-en

Max time kernel

146s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe"

Signatures

BluStealer

stealer blustealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\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\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3232 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 3232 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 3232 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 3232 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 3232 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 3232 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 3232 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 3232 wrote to memory of 3220 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe
PID 3220 wrote to memory of 1336 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3220 wrote to memory of 1336 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3220 wrote to memory of 1336 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3220 wrote to memory of 1336 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 3220 wrote to memory of 1336 N/A C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\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\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe

"C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe"

C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.exe

"C:\Users\Admin\AppData\Local\Temp\a83688213da481b066908e16d7a2206180627bcef8c69e4fe756dc06c5c35ec0.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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 76.38.195.152.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 52.109.13.63:443 tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 20.189.173.2:443 tcp
US 13.107.4.50:80 tcp
US 40.125.122.176:443 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 api.telegram.org udp
NL 173.223.113.164:443 tcp
NL 149.154.167.220:443 api.telegram.org tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 23.249.124.192.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 64.13.109.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 52.152.108.96:443 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp

Files

memory/3232-133-0x00000000000A0000-0x000000000017C000-memory.dmp

memory/3232-134-0x0000000005040000-0x00000000055E4000-memory.dmp

memory/3232-135-0x0000000004B70000-0x0000000004C02000-memory.dmp

memory/3232-136-0x0000000004B50000-0x0000000004B5A000-memory.dmp

memory/3232-137-0x0000000004AE0000-0x0000000004AF0000-memory.dmp

memory/3232-138-0x0000000004AE0000-0x0000000004AF0000-memory.dmp

memory/3232-139-0x0000000007E50000-0x0000000007EEC000-memory.dmp

memory/3220-140-0x0000000000400000-0x000000000046E000-memory.dmp

memory/3220-143-0x0000000000400000-0x000000000046E000-memory.dmp

memory/3220-146-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1336-147-0x0000000000500000-0x0000000000566000-memory.dmp

memory/1336-148-0x0000000004A30000-0x0000000004A40000-memory.dmp

memory/3220-150-0x0000000000400000-0x000000000046E000-memory.dmp