Malware Analysis Report

2025-08-06 03:34

Sample ID 231213-3ytm2sbfg9
Target 35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5
SHA256 35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5
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

35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5

Threat Level: Known bad

The file 35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5 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 web browsers

Reads user/profile data of local email clients

Checks installed software on the system

Adds Run key to start application

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Drops file in System32 directory

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

outlook_win_path

outlook_office_path

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:55

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 23:55

Reported

2023-12-13 23:58

Platform

win10-20231129-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.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\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.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-1-5-21-2915688436-2954362642-4271300650-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2915688436-2954362642-4271300650-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2915688436-2954362642-4271300650-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2915688436-2954362642-4271300650-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.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\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.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\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.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-1-5-21-2915688436-2954362642-4271300650-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2915688436-2954362642-4271300650-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.exe

"C:\Users\Admin\AppData\Local\Temp\35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5.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 fhsvc

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\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2200 -s 1740

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 129.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 4.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 120.150.79.40.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 7372e9843646bb76f1e0dafa9577da52
SHA1 c4b697f4a9bf0f8eaed5960903ba1c8880df93d1
SHA256 35cca66849f128ef5d2a4f25df97f866776e914c7b5783b93b74be63ba0aebe5
SHA512 9af3553399d11dec5744bdb9faf0adb96be21f7986e47c12aec83ed9206cf4d7d80e7f04e6548ea0e4d15df9b0a2387e1d8a60a581731f12c066cf826a172657

C:\Users\Admin\AppData\Local\Temp\posterBoxz9oqJw6h7PZGZ\QdX9ITDLyCRBWeb Data

MD5 4491efe9c997c2bb294866dab785b4a3
SHA1 655c178e979acf42eed324d2883b04ef9ba441c3
SHA256 197fb907775f182f8a8f6e00e5b514477a096988d10475a63385647c32b361e7
SHA512 57c135d0932dd1e11367d34af7808fd524c87507c263e3190105cbc69a4ac1ab730ed31631c860fbde125b99bd5995af797707fbc7063ceb5b1a1a708916d142

C:\Users\Admin\AppData\Local\Temp\grandUIAz9oqJw6h7PZGZ\information.txt

MD5 2f9ec4705bfa49702d2b45891382a364
SHA1 11f7ed3f3887f65593bbbf867271130d9c2f25ce
SHA256 523bf27701cdcd2c7a8f93295e9c4c75bebd03a2e41537901eb5dc06da2600b6
SHA512 9e0d86f2d4ff84ee4750ea846be614d27694fb1a8bb6ec70b315fb1111108a37967327a6fd2282a6559275d5624f7cae65ecadae0263eeccfef5ff86da6ec6f9