Malware Analysis Report

2025-08-06 03:35

Sample ID 231213-29eslabee7
Target b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c
SHA256 b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c
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

b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c

Threat Level: Known bad

The file b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c was found to be: Known bad.

Malicious Activity Summary

privateloader risepro collection discovery persistence spyware stealer

Risepro family

Privateloader family

Reads user/profile data of local email clients

Drops startup file

Reads user/profile data of web browsers

Accesses Microsoft Outlook profiles

Adds Run key to start application

Looks up external IP address via web service

Checks installed software on the system

Drops file in System32 directory

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

outlook_office_path

outlook_win_path

Checks processor information in registry

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-13 23:16

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 23:16

Reported

2023-12-13 23:19

Platform

win10v2004-20231130-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.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\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.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-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.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\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A
File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A
File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A
File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.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\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeManageVolumePrivilege N/A C:\Windows\System32\svchost.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe

"C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.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 404 -p 4380 -ip 4380

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 1668

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k UnistackSvcGroup

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.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 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 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.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 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 www.microsoft.com udp
US 92.123.241.137:80 www.microsoft.com tcp
US 92.123.241.137:80 www.microsoft.com tcp
US 8.8.8.8:53 137.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.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 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 43.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.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 315e7e694737de9eb65df31aeb1de027
SHA1 95a9317d38359e71504c60746c751c66fd413749
SHA256 b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c
SHA512 5827ada2d49b4f0f8f5ff533cf678c93b790427a46fb7dc9cba6e443d47377247a6fde49fdfede3a08ea08ed7ec48e0a41aa82367c4e7a94ff732b191f2f4b16

C:\Users\Admin\AppData\Local\Temp\posterBoxL3630gSZ2VyKI\ZunTSaNJLBVfWeb Data

MD5 f70aa3fa04f0536280f872ad17973c3d
SHA1 50a7b889329a92de1b272d0ecf5fce87395d3123
SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA512 30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

C:\Users\Admin\AppData\Local\Temp\posterBoxL3630gSZ2VyKI\QdX9ITDLyCRBWeb Data

MD5 9ee081ca0d9c3cd479031e1ff265961b
SHA1 a2bfa65a2ddcd529a134ea08efd6965bcd0e5665
SHA256 2a260265cd76d10c19658a7db48e7f328aba6df399e28e2e73642d5904dd73b4
SHA512 6b9f28e80628042205df78d5393ba53ff9866ee25d92500a806055333f0fe3a93cb1516754b617c42a342d2852cb4f2cd37c849dbfd19bedb71aef5e642c33e6

C:\Users\Admin\AppData\Local\Temp\grandUIAL3630gSZ2VyKI\information.txt

MD5 27516d9680c5747bbe4c419eda3d6966
SHA1 7a67752b847a68b75c6bbc87933772d50c278a3d
SHA256 35ecd800c11fa7401a62f5bf60c84c67c95646d90650237df57165fbad077331
SHA512 53c4bf4a2da2551f19a6c01c0e08815a241111eed05acdaa440d46666e8c749878b4bdfc6e67ff02bd00f0be2e88dd9f865dd1fb91686540a243b45ec1e31c1c

memory/3516-82-0x0000013436670000-0x0000013436680000-memory.dmp

memory/3516-98-0x0000013436770000-0x0000013436780000-memory.dmp

memory/3516-114-0x000001343ED60000-0x000001343ED61000-memory.dmp

memory/3516-115-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-116-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-117-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-118-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-119-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-120-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-121-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-122-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-123-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-124-0x000001343ED90000-0x000001343ED91000-memory.dmp

memory/3516-125-0x000001343E9B0000-0x000001343E9B1000-memory.dmp

memory/3516-126-0x000001343E9A0000-0x000001343E9A1000-memory.dmp

memory/3516-128-0x000001343E9B0000-0x000001343E9B1000-memory.dmp

memory/3516-131-0x000001343E9A0000-0x000001343E9A1000-memory.dmp

memory/3516-134-0x000001343E8E0000-0x000001343E8E1000-memory.dmp

memory/3516-146-0x000001343EAE0000-0x000001343EAE1000-memory.dmp

memory/3516-148-0x000001343EAF0000-0x000001343EAF1000-memory.dmp

memory/3516-149-0x000001343EAF0000-0x000001343EAF1000-memory.dmp

memory/3516-150-0x000001343EC00000-0x000001343EC01000-memory.dmp