Malware Analysis Report

2025-08-06 03:35

Sample ID 231213-28kbpabee5
Target d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6
SHA256 d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6
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

d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6

Threat Level: Known bad

The file d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6 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

Looks up external IP address via web service

Adds Run key to start application

Accesses Microsoft Outlook profiles

Drops file in System32 directory

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

outlook_win_path

Creates scheduled task(s)

outlook_office_path

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:15

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 23:15

Reported

2023-12-13 23:17

Platform

win10v2004-20231130-en

Max time kernel

145s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.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\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.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-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.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\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.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\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.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-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.exe

"C:\Users\Admin\AppData\Local\Temp\d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6.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 -p -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 -pss -s 404 -p 1628 -ip 1628

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1628 -s 1100

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
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 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 51.132.233.193.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 10.173.189.20.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 0345b6dfd16c3444533bb1453a8d8bd7
SHA1 05fbef04ea7eec45ae7c516a1484a1ec1a63ba6c
SHA256 d357332a9cc50a2602a8669a8d2f8e6a7ce26e5d6d3dd06380106e59a350fbf6
SHA512 6aeac99ea4946b9eb7f8f0c64c7b587ff21c6e2c31177e4ceab6713b317c46765b130eb4df8cd6ad263345636100fe2c62e192265b9d18fe71b0bf37c817d272

C:\Users\Admin\AppData\Local\Temp\posterBoxjTc6AnWvqiu7M\ZunTSaNJLBVfWeb Data

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

C:\Users\Admin\AppData\Local\Temp\posterBoxjTc6AnWvqiu7M\QdX9ITDLyCRBWeb Data

MD5 506305b81ca2e2c270c8cc550edee2df
SHA1 370f5306fde08801c87244eac61f9716c863e8f5
SHA256 d14e92ff6924f3a4b2b97a83d3016d84377c0cf34c3e59a87d77cbd7ccbe12f6
SHA512 a63b5a7c3f89f642978f27017c3428500e43da3f9f94447b3779c90f4b7844b10727a3795a446de8641e3753925df209eb9cab016f2d941e5863e2c8be0903e8

C:\Users\Admin\AppData\Local\Temp\grandUIAjTc6AnWvqiu7M\information.txt

MD5 3be96cd011724afa65293d4dcaf34d5b
SHA1 43bdaf96b74778738f2abde877c70d37ef15ece4
SHA256 d34e62a308f74855c1114572ae4b0c8334ee72c4f5301b933b503f81f44bf0e5
SHA512 b3bab517c9fc4943390de8e0303366986ba78659ee1df410bcda02c473d1839c21b2fec92f9dfa8eef4a64f110db4068ded548a8fb52677eb1f8cbe629a60cb5