Malware Analysis Report

2025-08-10 17:27

Sample ID 231213-15gwqabbh3
Target 16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df
SHA256 16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df
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

16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df

Threat Level: Known bad

The file 16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df 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

Looks up external IP address via web service

Adds Run key to start application

Checks installed software on the system

Accesses Microsoft Outlook profiles

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 22:13

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 22:13

Reported

2023-12-13 22:16

Platform

win10v2004-20231130-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.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\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.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-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.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\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.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\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.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-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.exe

"C:\Users\Admin\AppData\Local\Temp\16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df.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 -p -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 -pss -s 460 -p 2784 -ip 2784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2784 -s 1768

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 192.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.59.81:443 ipinfo.io tcp
US 8.8.8.8:53 158.240.127.40.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.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 8.8.8.8:53 16.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
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 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 204.178.17.96.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 9a1ae9149c28fbdda8c9500fecf85240
SHA1 515549ad978a0ae5690cab33aec8022992cd5cc3
SHA256 16b1740d2d77fc92f8a2084372f373f465279c08fc90146981302a140db2b8df
SHA512 4c09e40641b0cf8966cba5b21e740fa94529962a5f0a8b7be1e050fc569e5e39058242f17894bc07f57ee7f6c7437475ed046c1908ca6732a8f60b819bc1d88a

C:\Users\Admin\AppData\Local\Temp\posterBox91Jj9tVlsgIxg\ZunTSaNJLBVfWeb Data

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

C:\Users\Admin\AppData\Local\Temp\posterBox91Jj9tVlsgIxg\QdX9ITDLyCRBWeb Data

MD5 64e37b091c8b6c589857ba1adfcfd3c6
SHA1 fe3b230fea7286918504d9f57b2d6acb9d01e6ca
SHA256 563d8b77316228d681f2e490b1e99d267f4d22aa8c6711ba2ed7f66e6bfbd974
SHA512 06668ffebf5f0b9662c8f8814075331933b3225a0eaddea010831cbbb4a7f72cb53274308c0cfe2cb0505ef3997f8e4b5424260a37ba6f069456932dc670fc86

C:\Users\Admin\AppData\Local\Temp\grandUIA91Jj9tVlsgIxg\information.txt

MD5 a6eba5f0dcb4231987a9592e6513924a
SHA1 4f95c3e83f690df0328a9c51ecd72f2b0810ae33
SHA256 54f298c122612a0e682ccd233e59394c8b96b7bf53ca94bfdd5733ddd9fefc44
SHA512 272839cf469111c4b2d4e31577fa28ccc64ab251b95fdc993440db4f0266afda932489b2e4a09c5d8e9ca6b703ec939eb96fb19327a05230be22f99d3e25ea8c