Malware Analysis Report

2025-05-28 14:54

Sample ID 240821-hr3xxsyenl
Target New PO pdf.exe
SHA256 824f7a0f807faa6c6f1eec5f58291e9671a0f408595778bd699845b2656207ee
Tags
vipkeylogger collection credential_access discovery execution 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

824f7a0f807faa6c6f1eec5f58291e9671a0f408595778bd699845b2656207ee

Threat Level: Known bad

The file New PO pdf.exe was found to be: Known bad.

Malicious Activity Summary

vipkeylogger collection credential_access discovery execution keylogger stealer

VIPKeylogger

Credentials from Password Stores: Credentials from Web Browsers

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Browser Information Discovery

outlook_win_path

outlook_office_path

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-21 06:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-21 06:59

Reported

2024-08-21 07:01

Platform

win7-20240704-en

Max time kernel

121s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe"

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\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 2692 set thread context of 1180 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe

Browser Information Discovery

discovery

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2692 wrote to memory of 1916 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2692 wrote to memory of 1916 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2692 wrote to memory of 1916 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2692 wrote to memory of 1180 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
PID 2692 wrote to memory of 1180 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
PID 2692 wrote to memory of 1180 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
PID 2692 wrote to memory of 1180 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
PID 2692 wrote to memory of 1180 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
PID 2692 wrote to memory of 1180 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
PID 2692 wrote to memory of 1180 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe

"C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe"

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe

"C:\Windows\Microsoft.NET\Framework64\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 172.67.177.134:443 reallyfreegeoip.org 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 smtp.ingermint.com udp
US 208.91.199.224:587 smtp.ingermint.com tcp

Files

memory/1916-4-0x000007FEF68AE000-0x000007FEF68AF000-memory.dmp

memory/1916-5-0x000000001B6B0000-0x000000001B992000-memory.dmp

memory/1916-6-0x0000000001E60000-0x0000000001E68000-memory.dmp

memory/1916-7-0x000007FEF65F0000-0x000007FEF6F8D000-memory.dmp

memory/1916-8-0x000007FEF65F0000-0x000007FEF6F8D000-memory.dmp

memory/1180-9-0x0000000140000000-0x0000000140046000-memory.dmp

memory/1916-12-0x000007FEF65F0000-0x000007FEF6F8D000-memory.dmp

memory/1916-13-0x000007FEF65F0000-0x000007FEF6F8D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-21 06:59

Reported

2024-08-21 07:01

Platform

win10v2004-20240802-en

Max time kernel

134s

Max time network

111s

Command Line

"C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe"

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.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 4800 set thread context of 4700 N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe

Browser Information Discovery

discovery

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe

"C:\Users\Admin\AppData\Local\Temp\New PO pdf.exe"

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe

"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
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 172.67.177.134:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 168.6.122.193.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 134.177.67.172.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.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 smtp.ingermint.com udp
US 208.91.199.225:587 smtp.ingermint.com tcp
US 8.8.8.8:53 225.199.91.208.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/936-0-0x00007FFB65F53000-0x00007FFB65F55000-memory.dmp

memory/936-1-0x000001F7C9610000-0x000001F7C9632000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_i0gr4ypc.bhg.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/936-11-0x00007FFB65F50000-0x00007FFB66A11000-memory.dmp

memory/936-12-0x00007FFB65F50000-0x00007FFB66A11000-memory.dmp

memory/4700-13-0x0000000140000000-0x0000000140046000-memory.dmp

memory/936-16-0x00007FFB65F50000-0x00007FFB66A11000-memory.dmp

memory/4700-17-0x000001F1D5380000-0x000001F1D5542000-memory.dmp

memory/4700-18-0x000001F1D4EB0000-0x000001F1D4F00000-memory.dmp

memory/4700-19-0x000001F1D5A80000-0x000001F1D5FA8000-memory.dmp