Malware Analysis Report

2025-05-05 21:46

Sample ID 240829-cll5bszgpj
Target c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe
SHA256 c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf
Tags
vipkeylogger collection credential_access discovery keylogger stealer
score
10/10

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
10/10

SHA256

c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf

Threat Level: Known bad

The file c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe was found to be: Known bad.

Malicious Activity Summary

vipkeylogger collection credential_access discovery keylogger stealer

VIPKeylogger

Credentials from Password Stores: Credentials from Web Browsers

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Suspicious use of SetThreadContext

Browser Information Discovery

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 02:09

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-29 02:09

Reported

2024-08-29 02:12

Platform

win7-20240704-en

Max time kernel

120s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe"

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Looks up external IP address via web service

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2384 set thread context of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Browser Information Discovery

discovery

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\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2384 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe

"C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
BR 132.226.247.73:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.67.152:443 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/2384-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

memory/2384-1-0x0000000001070000-0x0000000001132000-memory.dmp

memory/2384-2-0x0000000074A10000-0x00000000750FE000-memory.dmp

memory/2384-3-0x0000000000840000-0x0000000000858000-memory.dmp

memory/2384-4-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

memory/2384-5-0x0000000074A10000-0x00000000750FE000-memory.dmp

memory/2384-6-0x0000000004FD0000-0x000000000505C000-memory.dmp

memory/2160-7-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2160-20-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2160-18-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2160-16-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2160-15-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2160-13-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2160-11-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2160-9-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2160-21-0x0000000074A10000-0x00000000750FE000-memory.dmp

memory/2384-22-0x0000000074A10000-0x00000000750FE000-memory.dmp

memory/2160-23-0x0000000074A10000-0x00000000750FE000-memory.dmp

memory/2160-24-0x0000000074A10000-0x00000000750FE000-memory.dmp

memory/2160-25-0x0000000074A10000-0x00000000750FE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 02:09

Reported

2024-08-29 02:12

Platform

win10v2004-20240802-en

Max time kernel

121s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe"

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Looks up external IP address via web service

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2984 set thread context of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Browser Information Discovery

discovery

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\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2984 wrote to memory of 4576 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 4576 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 4576 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 2984 wrote to memory of 1736 N/A C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe

"C:\Users\Admin\AppData\Local\Temp\c525446f2722dc0469ac6566e515dd15e21e41db50cf1c054bfa46997d8f2acf.exe"

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
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 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 242.44.101.158.in-addr.arpa udp
US 8.8.8.8:53 152.67.21.104.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.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
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/2984-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

memory/2984-1-0x0000000000150000-0x0000000000212000-memory.dmp

memory/2984-2-0x00000000051D0000-0x0000000005774000-memory.dmp

memory/2984-3-0x0000000004C20000-0x0000000004CB2000-memory.dmp

memory/2984-4-0x0000000004C00000-0x0000000004C0A000-memory.dmp

memory/2984-5-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/2984-6-0x0000000005F20000-0x0000000005F38000-memory.dmp

memory/2984-7-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

memory/2984-8-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/2984-9-0x0000000005F70000-0x0000000005FFC000-memory.dmp

memory/2984-10-0x0000000009DC0000-0x0000000009E5C000-memory.dmp

memory/1736-11-0x0000000000400000-0x0000000000448000-memory.dmp

memory/1736-13-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/2984-14-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/1736-15-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/1736-16-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/1736-17-0x00000000063F0000-0x00000000065B2000-memory.dmp

memory/1736-18-0x0000000006270000-0x00000000062C0000-memory.dmp