Analysis Overview
SHA256
b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c
Threat Level: Known bad
The file b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c was found to be: Known bad.
Malicious Activity Summary
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
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-13 23:16
Signatures
Privateloader family
Risepro family
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
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
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| 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
| 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
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
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe |
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)
| 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 behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b88f010892a5da842122c298f857abf1f34db11f1acee92e99bcbee415636f1c.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
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