Malware Analysis Report

2025-01-03 07:39

Sample ID 230501-ywzztsab4z
Target Request for quotation.exe.bin
SHA256 5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081
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

5923a0d6ac3cd029ce06706021aaaff83c55193a23c2d5fedd5b3cdd0065b081

Threat Level: Known bad

The file Request for quotation.exe.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

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-05-01 20:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-01 20:08

Reported

2023-05-01 20:13

Platform

win7-20230220-en

Max time kernel

68s

Max time network

34s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe"

Signatures

BluStealer

stealer blustealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\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-1-5-21-2647223082-2067913677-935928954-1000\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-1-5-21-2647223082-2067913677-935928954-1000\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 behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1768 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1768 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 1164 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\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-1-5-21-2647223082-2067913677-935928954-1000\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\Request for quotation.exe

"C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe"

C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe

"C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe"

C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe

"C:\Users\Admin\AppData\Local\Temp\Request for quotation.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/1768-54-0x0000000000D00000-0x0000000000DE6000-memory.dmp

memory/1768-55-0x0000000004D40000-0x0000000004D80000-memory.dmp

memory/1768-56-0x00000000004E0000-0x00000000004F2000-memory.dmp

memory/1768-57-0x0000000004D40000-0x0000000004D80000-memory.dmp

memory/1768-58-0x00000000004F0000-0x00000000004FC000-memory.dmp

memory/1768-59-0x00000000042F0000-0x000000000439C000-memory.dmp

memory/1768-60-0x0000000004D40000-0x0000000004D80000-memory.dmp

memory/1768-61-0x0000000004F20000-0x0000000004F96000-memory.dmp

memory/1164-62-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1164-63-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1164-64-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1164-66-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1164-67-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1164-69-0x0000000000400000-0x000000000046E000-memory.dmp

memory/392-72-0x0000000000090000-0x00000000000F6000-memory.dmp

memory/392-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/392-74-0x0000000000090000-0x00000000000F6000-memory.dmp

memory/392-76-0x0000000000090000-0x00000000000F6000-memory.dmp

memory/392-78-0x0000000000090000-0x00000000000F6000-memory.dmp

memory/1164-79-0x0000000000400000-0x000000000046E000-memory.dmp

memory/392-80-0x0000000002370000-0x000000000242C000-memory.dmp

memory/1164-81-0x0000000000400000-0x000000000046E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-01 20:08

Reported

2023-05-01 20:13

Platform

win10v2004-20230220-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe"

Signatures

BluStealer

stealer blustealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\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-1-5-21-4238149048-355649189-894321705-1000\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-1-5-21-4238149048-355649189-894321705-1000\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\Request for quotation.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 656 wrote to memory of 4848 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 656 wrote to memory of 4848 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 656 wrote to memory of 4848 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 656 wrote to memory of 4848 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 656 wrote to memory of 4848 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 656 wrote to memory of 4848 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 656 wrote to memory of 4848 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 656 wrote to memory of 4848 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe
PID 4848 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4848 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4848 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4848 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 4848 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\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-1-5-21-4238149048-355649189-894321705-1000\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\Request for quotation.exe

"C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe"

C:\Users\Admin\AppData\Local\Temp\Request for quotation.exe

"C:\Users\Admin\AppData\Local\Temp\Request for quotation.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 93.184.221.240:80 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
NL 13.69.109.130:443 tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 52.152.110.14:443 tcp
US 93.184.221.240:80 tcp
NL 173.223.113.164:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 254.152.241.8.in-addr.arpa udp
US 52.242.97.97:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
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 24.249.124.192.in-addr.arpa udp

Files

memory/656-133-0x0000000000DA0000-0x0000000000E86000-memory.dmp

memory/656-134-0x00000000058C0000-0x00000000058D0000-memory.dmp

memory/656-135-0x0000000005EF0000-0x0000000006494000-memory.dmp

memory/656-136-0x00000000059F0000-0x0000000005A82000-memory.dmp

memory/656-137-0x00000000058C0000-0x00000000058D0000-memory.dmp

memory/656-138-0x00000000058C0000-0x00000000058D0000-memory.dmp

memory/656-139-0x0000000001650000-0x00000000016EC000-memory.dmp

memory/656-140-0x00000000058C0000-0x00000000058D0000-memory.dmp

memory/4848-141-0x0000000000400000-0x000000000046E000-memory.dmp

memory/4848-143-0x0000000000400000-0x000000000046E000-memory.dmp

memory/4848-147-0x0000000000400000-0x000000000046E000-memory.dmp

memory/3508-148-0x0000000000D00000-0x0000000000D66000-memory.dmp

memory/3508-149-0x00000000052A0000-0x00000000052B0000-memory.dmp