Malware Analysis Report

2025-08-10 17:28

Sample ID 231213-1f8cdahebn
Target bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d
SHA256 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d
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

bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d

Threat Level: Known bad

The file bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d was found to be: Known bad.

Malicious Activity Summary

privateloader risepro collection discovery persistence spyware stealer

Privateloader family

Risepro family

Drops startup file

Reads user/profile data of local email clients

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

Program crash

Unsigned PE

Enumerates physical storage devices

Checks processor information in registry

outlook_win_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

outlook_office_path

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 21:36

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 21:36

Reported

2023-12-13 21:39

Platform

win10-20231020-en

Max time kernel

121s

Max time network

114s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\GroupPolicy C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe

"C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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 4252 -s 1584

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 43.229.111.52.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 1bd531249f2fa052c371f72ac7e1d034
SHA1 3265f546c36a50d21aaf65e765702e895608f72d
SHA256 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d
SHA512 aed88bc161b4c9a7e3335dc0ba90c600f46a96a3f4ba01a915d76639f3f3b2b1ffc2ba7ab76130bce89888ce57b0966bd697e2ed20cf0eb53d7729bc43b489ce

C:\Users\Admin\AppData\Local\Temp\posterBoxhCBR9tdLjvOKz\QdX9ITDLyCRBWeb Data

MD5 3f194152deb86dd24c32d81e7749d57e
SHA1 b1c3b2d10013dfd65ef8d44fd475ac76e1815203
SHA256 9cad93e2e9da675749e0e07f1b61d65ab1333b17a82b9daeaac035646dcbc5aa
SHA512 c4e922f8c3a304d2faf7148c47f202e5062c419ff0d1330b1626f3e2077642e850377a531fe7ac7f935f22b1b64cfab5169305d6ad79fc8bda49dbff37f98fbf

C:\Users\Admin\AppData\Local\Temp\grandUIAhCBR9tdLjvOKz\information.txt

MD5 2d910440dd2c1501d46f16f31080b695
SHA1 fc716d36c31090215c1b08592085a2fc82f5a2e6
SHA256 2d15bdd51539d3d01d3432b0689879a7647996dfbf0794897864b8edd49d9576
SHA512 f5f6584caa6cc78e9d34f744bfda7f91d32e1727e07644910b5d2475444e5800abd19213d30534c3c003e761b4ceec09f4065b6f045acce480ace31886ac8b1c