Malware Analysis Report

2025-08-10 17:27

Sample ID 231213-152k5abbh6
Target 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41
SHA256 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41
Tags
collection discovery persistence spyware stealer privateloader risepro
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

677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41

Threat Level: Known bad

The file 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41 was found to be: Known bad.

Malicious Activity Summary

collection discovery persistence spyware stealer privateloader risepro

Privateloader family

Risepro family

Reads user/profile data of web browsers

Drops startup file

Reads user/profile data of local email clients

Adds Run key to start application

Looks up external IP address via web service

Checks installed software on the system

Accesses Microsoft Outlook profiles

Drops file in System32 directory

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

outlook_win_path

Creates scheduled task(s)

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 22:14

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 22:14

Reported

2023-12-13 22:17

Platform

win10v2004-20231127-en

Max time kernel

144s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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 created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe

"C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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 WPDBusEnum

C:\Windows\system32\svchost.exe

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

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 432 -p 2544 -ip 2544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 1680

Network

Country Destination Domain Proto
US 8.8.8.8:53 82.177.190.20.in-addr.arpa udp
US 193.233.132.51:50500 tcp
N/A 224.0.0.251:5353 udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
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 51.132.233.193.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.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 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 21.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 ccab7f1cbee37bf9944c33304752b6a4
SHA1 f22dc6edd02036800aecb2b08f3a2d8f5e67235e
SHA256 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41
SHA512 8a20097e2efb0aabaf3cdf7ffb81a36dec1a4eb21e452c99adde6c030319b4bbad61e4492cc30b3ce9543f22160eb4e5c887f70555d65f9cd13e642f5c3e1db9

C:\Users\Admin\AppData\Local\Temp\posterBoxF4ca9czeNmRu7\ZunTSaNJLBVfWeb Data

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

C:\Users\Admin\AppData\Local\Temp\posterBoxF4ca9czeNmRu7\QdX9ITDLyCRBWeb Data

MD5 250f6cee6a8be4a85cd0d78b8f9ac854
SHA1 48a5be711abe88c0efb7204f6c792e67a99d390a
SHA256 21e090219937792f360789c94785cf969cf22fb9e2ae145dec419dc4beab1321
SHA512 4685c2cbc34566879e5c494f1433996ce9541e048a87036876d0ec426a02a13af6ed606575306522def4dd19a3fcc34b95335f492b21960b28e8f12be82a35b7

C:\Users\Admin\AppData\Local\Temp\grandUIAF4ca9czeNmRu7\information.txt

MD5 e38ee8b554473e1bf6c3114f90972539
SHA1 55520428285ed28ea615ba354cde4c58fe9888f1
SHA256 175256ba529228fff23c7f6735a5224929f7d97b6ccb2d99b873acd915b3852d
SHA512 bbe60737e58a545e9b5b689974bcf6c01cda5f9b265302ed62953189f4f8776dde6b7dceb1f2eabc938e6cb04ba0df35e76a043c7e24fd6641d8e014191937bc