Malware Analysis Report

2025-08-05 12:23

Sample ID 231213-3h299aaban
Target 0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f
SHA256 0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f
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

0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f

Threat Level: Known bad

The file 0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f 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

Unsigned PE

Enumerates physical storage devices

Program crash

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

outlook_office_path

outlook_win_path

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:31

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 23:31

Reported

2023-12-13 23:34

Platform

win10-20231129-en

Max time kernel

144s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.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\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.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-1-5-21-3700703602-3792238236-1515753225-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3700703602-3792238236-1515753225-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3700703602-3792238236-1515753225-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3700703602-3792238236-1515753225-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.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\System32\GroupPolicy C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.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\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.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-1-5-21-3700703602-3792238236-1515753225-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3700703602-3792238236-1515753225-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.exe

"C:\Users\Admin\AppData\Local\Temp\0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f.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 -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 -u -p 4084 -s 1696

Network

Country Destination Domain Proto
US 193.233.132.51:50500 tcp
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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 96.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 7.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 f8917aab4687372d0b67ba8b94155357
SHA1 cde595362e0601d46008cd0ccdc64253d844948e
SHA256 0491939a5620185acba67ba52090ea21998f2a1791cbe81c6240a7ec37fbd91f
SHA512 b92b52acbc2fbd7dfbff1fe288f9fba574aa91c5293579cddcf3310f4671e595d47463160a1f7b129026e598eda2847d4a5cf12db4cfaecd906faf96fed24810

C:\Users\Admin\AppData\Local\Temp\posterBoxAe_qD5XrV2RVh\QdX9ITDLyCRBWeb Data

MD5 52c1c59f20f3b5384a8bced66c68e36d
SHA1 4cbc828116e54498871daccf4be75db441df0d9e
SHA256 38faf81c41c67d7edb345f0c380c9b1c56f76003f7fe4e3796aa5ac99c25e282
SHA512 aaaaad81d473693975461f88891c671d125b8b73807d87dbb158b6d0e6774e3cff5606d1692fc41906e3a29a84a55319163e424d528fc4605a518d6a3a677ec9

C:\Users\Admin\AppData\Local\Temp\grandUIAAe_qD5XrV2RVh\information.txt

MD5 9b0f14fc0199779103751edcc562ffbd
SHA1 8476caa9bd78d3997cd24916eedca7f1616ced3e
SHA256 09cadfb6feed399df13dbb634b7365cf04635e3518c2c2dfde0b806227e5ceda
SHA512 2d7d25b374926c6b07e9aaec34f5c9fc98f8576169d9f1e98f28c9c299d495a151dd830616cf7703f046bca947d206c9878cd4b01d70f2f291394aa14b9d6534