Malware Analysis Report

2025-08-10 17:28

Sample ID 231213-1hxzeshecr
Target 8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af
SHA256 8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af
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

8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af

Threat Level: Known bad

The file 8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af was found to be: Known bad.

Malicious Activity Summary

privateloader risepro collection discovery persistence spyware stealer

Risepro family

Privateloader family

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Drops startup file

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

Enumerates physical storage devices

Program crash

Unsigned PE

Checks processor information in registry

outlook_win_path

outlook_office_path

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 21:39

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 21:39

Reported

2023-12-13 21:42

Platform

win10v2004-20231127-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3028534956-1709433221-1313273668-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.exe

"C:\Users\Admin\AppData\Local\Temp\8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af.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 -p -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 -pss -s 428 -p 3536 -ip 3536

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 1668

Network

Country Destination Domain Proto
US 8.8.8.8:53 146.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 8.238.23.119:80 tcp
N/A 224.0.0.251:5353 udp
US 193.233.132.51:50500 tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 51.132.233.193.in-addr.arpa udp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.59.81:443 ipinfo.io tcp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 82.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 11.2.37.23.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 83.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 193.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 cbb0b9dd19e5913079cd699250b66b00
SHA1 e98599cad9443bf9f1b93ff976799568d440ada3
SHA256 8fdd2785d3522e5a7d6d6c7d4240dd5034e8d18d4eda05c71b6fbd69f345f1af
SHA512 8d75a56ee2397c1485d066057fd975c48a6807b91b85db411f5dc013e4f106df63e93cdf033da98e59bd089750b0aab926dbd41cd0bbdcbcdf9d6411620b450e

C:\Users\Admin\AppData\Local\Temp\posterBox2SEsERBj9Cw3X\ZunTSaNJLBVfWeb Data

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

C:\Users\Admin\AppData\Local\Temp\posterBox2SEsERBj9Cw3X\QdX9ITDLyCRBWeb Data

MD5 44de9f4a837691e623c12425421c22d1
SHA1 5229b2b16468353e9ae72ae2d97840448b055e55
SHA256 683050f55ee81e6cdd868cad8df884f327f903bca54f06f19e24d196d514fcae
SHA512 5f15e672310ef2f67e7517e4b23d3d1500fe18c4e53785ed8191d0b74139ccb2142e5b7495ec966e207fd46ead84bbd929d2d169b71d9477fbac4b383b0b55c5

C:\Users\Admin\AppData\Local\Temp\grandUIA2SEsERBj9Cw3X\information.txt

MD5 0f89daaa51d50acf103338caba631eee
SHA1 ebca1f3038c64d32138515678103c93abc0595af
SHA256 97faed85525489b4ab4951a70b828e83a7bb6b346efa83af513434ba53c3dbca
SHA512 3ec19f78ecca0948d8769c06cf76bd00a3cfbc76739723bf590e6026b2063661753cebe7ca90e9437ca66acf86c31943391404706d498893a701b6ae0e0c4d1c