Malware Analysis Report

2025-08-05 23:33

Sample ID 250119-x591qaspcp
Target 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe
SHA256 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117
Tags
collection discovery spyware stealer
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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
7/10

SHA256

66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117

Threat Level: Shows suspicious behavior

The file 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

collection discovery spyware stealer

Reads user/profile data of web browsers

Reads user/profile data of local email clients

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_win_path

Suspicious behavior: EnumeratesProcesses

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-19 19:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-19 19:27

Reported

2025-01-19 19:29

Platform

win7-20240903-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe"

Signatures

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A
N/A reallyfreegeoip.org N/A N/A
N/A reallyfreegeoip.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2412 set thread context of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2412 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe

"C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe"

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
DE 193.122.6.168:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.96.1:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp

Files

memory/2412-0-0x000000007490E000-0x000000007490F000-memory.dmp

memory/2412-1-0x00000000001F0000-0x000000000022E000-memory.dmp

memory/2412-2-0x00000000003D0000-0x0000000000406000-memory.dmp

memory/2412-3-0x00000000004E0000-0x00000000004F2000-memory.dmp

memory/2776-4-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2412-13-0x0000000074900000-0x0000000074FEE000-memory.dmp

memory/2776-12-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2776-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2776-9-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2776-6-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2776-8-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2776-15-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2776-17-0x0000000000400000-0x000000000041E000-memory.dmp

memory/2412-18-0x0000000074900000-0x0000000074FEE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-19 19:27

Reported

2025-01-19 19:29

Platform

win10v2004-20241007-en

Max time kernel

106s

Max time network

116s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe"

Signatures

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A
N/A reallyfreegeoip.org N/A N/A
N/A reallyfreegeoip.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4116 set thread context of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4116 wrote to memory of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4116 wrote to memory of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4116 wrote to memory of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4116 wrote to memory of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4116 wrote to memory of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4116 wrote to memory of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4116 wrote to memory of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4116 wrote to memory of 2444 N/A C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe

"C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe"

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
US 158.101.44.242:80 checkip.dyndns.org tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 242.44.101.158.in-addr.arpa udp
US 8.8.8.8:53 155.50.123.104.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.112.1:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 1.112.21.104.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.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
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 160.50.123.104.in-addr.arpa udp
US 8.8.8.8:53 180.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 29.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/4116-0-0x000000007537E000-0x000000007537F000-memory.dmp

memory/4116-1-0x0000000000070000-0x00000000000AE000-memory.dmp

memory/4116-2-0x00000000049A0000-0x00000000049D6000-memory.dmp

memory/4116-3-0x0000000005080000-0x0000000005624000-memory.dmp

memory/4116-4-0x0000000004B70000-0x0000000004C02000-memory.dmp

memory/4116-5-0x0000000004AD0000-0x0000000004AE2000-memory.dmp

memory/4116-8-0x0000000075370000-0x0000000075B20000-memory.dmp

memory/2444-9-0x0000000075370000-0x0000000075B20000-memory.dmp

memory/2444-10-0x0000000000500000-0x000000000051E000-memory.dmp

memory/2444-12-0x0000000004A10000-0x0000000004AAC000-memory.dmp

memory/4116-11-0x0000000075370000-0x0000000075B20000-memory.dmp

memory/2444-13-0x0000000075370000-0x0000000075B20000-memory.dmp

memory/2444-14-0x0000000005BD0000-0x0000000005C20000-memory.dmp

memory/2444-15-0x0000000075370000-0x0000000075B20000-memory.dmp

memory/2444-16-0x0000000005EF0000-0x00000000060B2000-memory.dmp

memory/2444-17-0x0000000005DE0000-0x0000000005DEA000-memory.dmp