Malware Analysis Report

2025-08-05 12:23

Sample ID 231213-3hrthsabam
Target 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5
SHA256 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5
Tags
collection discovery persistence spyware stealer privateloader risepro
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

1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5

Threat Level: Known bad

The file 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5 was found to be: Known bad.

Malicious Activity Summary

collection discovery persistence spyware stealer privateloader risepro

Risepro family

Privateloader family

Reads user/profile data of web browsers

Drops startup file

Reads user/profile data of local email clients

Adds Run key to start application

Checks installed software on the system

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Drops file in System32 directory

Program crash

Enumerates physical storage devices

Unsigned PE

outlook_win_path

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Creates scheduled task(s)

outlook_office_path

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:31

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 23:31

Reported

2023-12-13 23:33

Platform

win10v2004-20231130-en

Max time kernel

141s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe

"C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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\SysWOW64\schtasks.exe

schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /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\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2272 -ip 2272

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 1684

Network

Country Destination Domain Proto
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 146.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 193.233.132.51:50500 tcp
N/A 224.0.0.251:5353 udp
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 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 16.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.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 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 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

MD5 d6549c6dd3281b5b1ff67d9e2bd3c98b
SHA1 30007f23e0469621a05c00ce27f12ca96f827d5b
SHA256 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5
SHA512 8776b0f84b6b3e49d3fdc6248ca005a669ab350b88a1ca6732cd765c74ee35c3872173fe8313b3603f621207392710b3addca898c7c65fc89461841e5243902f

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

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

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

MD5 5bca7f96843d97e2c39afbb8b5f9865b
SHA1 e64666a5d705a768e2351621577a386400111251
SHA256 e25c46923271e687a972edfcf511d7685c24ce2e509a5b10d0ba4cd6f2bfeab2
SHA512 40771d495b407c0ede8ad3e5d8e77cf588a607426f0597f0c10a81ec7b2614f28a66a1c5ff36bf8bf6905bdc6b537d8cc5a749725adfc57f72ec3c9ee17f76d3

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

MD5 495667a5660839086f774f0bdbd9b5fb
SHA1 4586f55664d146c890a70c62d916effa8dca0b9f
SHA256 2184db68bdb4d644dc8b8dbc0aa5f0cc5f3e37f846eba319369c3ec077f321ed
SHA512 0c653a3ec0f2da316a42d34fb1a4bdd90dc85d5e09433ef52b964a1774b766983de8972e95731a6bbac59c00555104fca067212ccc93b20fdef9fc006d54488c