Malware Analysis Report

2025-08-05 12:23

Sample ID 231213-3lc5jaabbq
Target f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71
SHA256 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71
Tags
privateloader risepro collection discovery persistence spyware 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 Overview

score
10/10

SHA256

f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71

Threat Level: Known bad

The file f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71 was found to be: Known bad.

Malicious Activity Summary

privateloader risepro collection discovery persistence spyware stealer

Privateloader family

Risepro family

Reads user/profile data of web browsers

Drops startup file

Reads user/profile data of local email clients

Accesses Microsoft Outlook profiles

Adds Run key to start application

Checks installed software on the system

Looks up external IP address via web service

Drops file in System32 directory

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

outlook_office_path

outlook_win_path

Creates scheduled task(s)

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:35

Signatures

Privateloader family

privateloader

Risepro family

risepro

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-13 23:35

Reported

2023-12-13 23:38

Platform

win10-20231023-en

Max time kernel

124s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A

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-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A

Checks installed software on the system

discovery

Looks up external IP address via web service

Description Indicator Process Target
N/A ipinfo.io N/A N/A
N/A ipinfo.io N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe

"C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST

\??\c:\windows\system32\svchost.exe

c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5112 -s 1664

Network

Country Destination Domain Proto
US 193.233.132.51:50500 tcp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.186.192:443 ipinfo.io tcp
US 8.8.8.8:53 51.132.233.193.in-addr.arpa udp
US 8.8.8.8:53 192.186.117.34.in-addr.arpa udp
US 8.8.8.8:53 96.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 28.73.42.20.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 e8b5da99b95f7f07f71794b3901bdb87
SHA1 ac665d485ab0209c99c3f00fe657efbd5cf1345f
SHA256 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71
SHA512 56b0912f9d676c76ec8f043e8e3fb29b7c19bd03341a6fc99191ee71e53434116b0185ded6b71b03e69c29caf0039f52cdd6df847793a5c82b7eae90149b592a

C:\Users\Admin\AppData\Local\Temp\posterBoxwKTUGDsKb82Vf\QdX9ITDLyCRBWeb Data

MD5 90a4e3db168e5bdc6b5e562ce7f41a06
SHA1 2bf235c33b3395caefc1b9f1a280f83422f94d40
SHA256 fdd37b06f981e619d6690edeaa17ba8d86c66cec9331632f3d9922bb2c6eabf5
SHA512 e30f0a67bbdc6507ac5babaa5fe1e0db7cde6b62812f6365fe83293e5fbba3f62db43c80c635a43b3b0ffb2e08ac2faf79eff0d3bea8e2aaaca6c55fb0833c0b

C:\Users\Admin\AppData\Local\Temp\grandUIAwKTUGDsKb82Vf\information.txt

MD5 29f64ee4c6ef1cf1086ddcac858135ca
SHA1 28affccf2b34357b45b92d13f0fb5acfb22e4b99
SHA256 f9229ea84805ea652cf6af27663b98501819e9db24d1aaad8640a57853d4656f
SHA512 5bf5672640748b4e4f5307a746101f684df9e179d905bccafb3eee73694797abd1ad118d9836b5761391a9bb45c9e1388319987888cc7706bcec9ee6248153c0