Malware Analysis Report

2025-08-06 03:36

Sample ID 231213-3at9nsbef6
Target 6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6
SHA256 6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6
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

6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6

Threat Level: Known bad

The file 6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6 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 web browsers

Reads user/profile data of local email clients

Drops startup file

Checks installed software on the system

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Adds Run key to start application

Drops file in System32 directory

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

outlook_win_path

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Creates scheduled task(s)

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:19

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 23:19

Reported

2023-12-13 23:21

Platform

win10v2004-20231130-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.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\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.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-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.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\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.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\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.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-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.exe

"C:\Users\Admin\AppData\Local\Temp\6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6.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 424 -p 3748 -ip 3748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 1784

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 3.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
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 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
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 51.132.233.193.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 85.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.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 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 5a1949aa5f4f51bf6239f79551622bce
SHA1 88d4c0954ec11bf580870321f63f3f766c816dc5
SHA256 6522c4c9094c3423fd31c235d71bec2c1c018c1143436732169fe171c28aabb6
SHA512 3852d05d01cedd3244611856b577a9d777759233794e35b9c0486fccbb9702f9e978d9430a8106702ca4543b7b4117e1b6b3aaaa7a5b04b9f9d365b22fa26e8d

C:\Users\Admin\AppData\Local\Temp\posterBox4ezjpQszjOGNn\ZunTSaNJLBVfWeb Data

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

C:\Users\Admin\AppData\Local\Temp\posterBox4ezjpQszjOGNn\QdX9ITDLyCRBWeb Data

MD5 5bca7f96843d97e2c39afbb8b5f9865b
SHA1 e64666a5d705a768e2351621577a386400111251
SHA256 e25c46923271e687a972edfcf511d7685c24ce2e509a5b10d0ba4cd6f2bfeab2
SHA512 40771d495b407c0ede8ad3e5d8e77cf588a607426f0597f0c10a81ec7b2614f28a66a1c5ff36bf8bf6905bdc6b537d8cc5a749725adfc57f72ec3c9ee17f76d3

C:\Users\Admin\AppData\Local\Temp\grandUIA4ezjpQszjOGNn\information.txt

MD5 9842ef514806e9e89c7d994310da66a7
SHA1 80ef240993b4a2c35f1bd88f985839faf2cb3a48
SHA256 7c03742e06aa16a9041e714645f5db264098570393c2817e768c8ca5297ba0c9
SHA512 788a2743ff03e45b7e87e8934d2e26527f48a794a37ec9f44fd95719daf8ba0b1fdc4c1cd5d1883739056f2b064c40e33115ddcb83ca2934c8e915a3b6a0b35a