Malware Analysis Report

2025-08-06 03:36

Sample ID 231213-3ebccsbeh9
Target a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012
SHA256 a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012
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

a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012

Threat Level: Known bad

The file a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012 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 local email clients

Drops startup file

Reads user/profile data of web browsers

Accesses Microsoft Outlook profiles

Adds Run key to start application

Looks up external IP address via web service

Checks installed software on the system

Drops file in System32 directory

Enumerates physical storage devices

Program crash

Unsigned PE

Creates scheduled task(s)

outlook_office_path

outlook_win_path

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:25

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 23:25

Reported

2023-12-13 23:27

Platform

win10-20231129-en

Max time kernel

144s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.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\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.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-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.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\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.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\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.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-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.exe

"C:\Users\Admin\AppData\Local\Temp\a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012.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\SysWOW64\schtasks.exe

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

C:\Windows\SysWOW64\WerFault.exe -u -p 3376 -s 1684

Network

Country Destination Domain Proto
US 193.233.132.51:50500 tcp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.59.81:443 ipinfo.io tcp
US 8.8.8.8:53 51.132.233.193.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 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 1.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 89.16.208.104.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 ac48079240e9ec062d006ca602be5e78
SHA1 f62d259807ecb6bc67e3002388dc6e414bdbb9b1
SHA256 a276ef417221f6f1c924f7d45761ed1c60583034e8bee7dc8495b3b42622b012
SHA512 58cd60e91614b8490707d3f70cbda0e12c72b1ee9b0e517cdaecfd686d6fd5919b79532abe164b3e838680d73c6596182bdb30e8793ccc03202f83e9fb1e1370

C:\Users\Admin\AppData\Local\Temp\posterBoxoRwIXjT2mrqs4\QdX9ITDLyCRBWeb Data

MD5 8e8e7137325b5aa4e1206f338a7ccde7
SHA1 23a2d46d2812f664d8fff942d493e85afe5f6a27
SHA256 bbbd94e3e65b0cf446d3f651f1a557e479c2adc8c0c955a18addd89fcd7ffe25
SHA512 1512bc6ad27b5b794d44b2599ace04a325b32726a1c96e2f8a6f75d55c494e65a4cdd1ea241027d693cd54dc049ad4a23b2147bb1a49450b7949cc71dba06233

C:\Users\Admin\AppData\Local\Temp\grandUIAoRwIXjT2mrqs4\information.txt

MD5 027d601f2024b286e879e9c7a54ef095
SHA1 285cc13773115ea010303c914503154e29c79f1c
SHA256 083e42d01507e3a74397273cc4eafc3d9806afa96eda78ad4898d183b8992396
SHA512 15c8eb9645769f2729e8e848e56ca16f7a30db48cd4bb9b41171d72f178f34090895367eeee0ee33232b684e2b0613a3660b0a01c5e31c32c7c48753e8018c0c