Malware Analysis Report

2025-08-05 12:22

Sample ID 231214-ag3v6sacdm
Target 4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e
SHA256 4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e
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

4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e

Threat Level: Known bad

The file 4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e 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 local email clients

Reads user/profile data of web browsers

Drops startup file

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

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

outlook_win_path

Suspicious use of WriteProcessMemory

Checks processor information in registry

Creates scheduled task(s)

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-14 00:11

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

2023-12-14 00:11

Reported

2023-12-14 00:14

Platform

win10-20231129-en

Max time kernel

131s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.exe

"C:\Users\Admin\AppData\Local\Temp\4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e.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\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 fhsvc

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1608

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 129.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 25.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 18.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 e94dce896b9504ef6a54fb33528bb923
SHA1 f99b8a14c147c1dd5f5ab763132b3f8926d2cb64
SHA256 4f3daed8e252b93a9f482245aaadabf9105891fa55e001a9423f9efb0b52927e
SHA512 8926a9539b0d4b4b38c5c19e0eb2595cf15c5a954859a601dce936f50c768c736fb50d90fe9fbc741bd3b0601cce72c2a72aec160d6338b345b5e280e4b1e282

C:\Users\Admin\AppData\Local\Temp\posterBoxCUk7Y3sL8N9UN\QdX9ITDLyCRBWeb Data

MD5 8e8e7137325b5aa4e1206f338a7ccde7
SHA1 23a2d46d2812f664d8fff942d493e85afe5f6a27
SHA256 bbbd94e3e65b0cf446d3f651f1a557e479c2adc8c0c955a18addd89fcd7ffe25
SHA512 1512bc6ad27b5b794d44b2599ace04a325b32726a1c96e2f8a6f75d55c494e65a4cdd1ea241027d693cd54dc049ad4a23b2147bb1a49450b7949cc71dba06233

C:\Users\Admin\AppData\Local\Temp\grandUIACUk7Y3sL8N9UN\information.txt

MD5 4da4599220a2a301a9a8bdbabe0d7887
SHA1 a5334cef53909f703cc6ea9d0f8a6956f395d82e
SHA256 be07cc1d199c2d04cf74cf798b720126a61cec8c4f54de27d8b547deb5e3b910
SHA512 a52154ea1fc460d3a816ac288bc661015e750770068a9d7cc3a049c93802987148bf103ce1f7da940581161173e47f62467806a323cbb4ae1786d4ced86378f3