Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
13/12/2023, 21:43
Behavioral task
behavioral1
Sample
3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe
Resource
win10v2004-20231127-en
General
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Target
3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe
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Size
1.6MB
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MD5
4f3b219c3bb5858bf47880a2c9639cfe
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SHA1
e98d92ef494988bd143c7667de6fe9d5ba1878a3
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SHA256
3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68
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SHA512
cdc0d9217a1003e751b56c443dfddc3323e0f50bdb94571f5646b61608ed83392dfd42f4deb88fb449cf580aef2e80237a9a08b35871cb23027429260f335cf3
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SSDEEP
49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u
Malware Config
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 20 ipinfo.io 25 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 4924 3584 WerFault.exe 87 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5084 schtasks.exe 4812 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3584 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe 3584 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3584 wrote to memory of 5084 3584 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe 89 PID 3584 wrote to memory of 5084 3584 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe 89 PID 3584 wrote to memory of 5084 3584 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe 89 PID 3584 wrote to memory of 4812 3584 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe 92 PID 3584 wrote to memory of 4812 3584 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe 92 PID 3584 wrote to memory of 4812 3584 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe"C:\Users\Admin\AppData\Local\Temp\3d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68.exe"1⤵
- Drops startup file
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Drops file in System32 directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3584 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST2⤵
- Creates scheduled task(s)
PID:5084
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST2⤵
- Creates scheduled task(s)
PID:4812
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 16682⤵
- Program crash
PID:4924
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:2452
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:4440
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3584 -ip 35841⤵PID:3780
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD54f3b219c3bb5858bf47880a2c9639cfe
SHA1e98d92ef494988bd143c7667de6fe9d5ba1878a3
SHA2563d9056fdb45a687b98b3ff51a26d28c5e8ad751107db6381d55450e116f59c68
SHA512cdc0d9217a1003e751b56c443dfddc3323e0f50bdb94571f5646b61608ed83392dfd42f4deb88fb449cf580aef2e80237a9a08b35871cb23027429260f335cf3
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Filesize
3KB
MD5ca745b8704abb2d1be19d61774ea77b7
SHA136705afc6a40186c935015ce7c1fe5778fd8364d
SHA256c6d7dd6cff02722e27fad9b275ec132b86e1963742f9ae677f08897fa6e14c78
SHA512618468d35430d1836606962da0afa15e65e814dbefad62f8dd108d9d189244a5144f658f2cab866130b7afa55880d781e029ced12cae3386ac3adfc99448be3d
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Filesize
92KB
MD5ce7f99b32cf0d8473697dfcf8fdcc1d7
SHA1001451a4f514f593a55bcf2c50a3a22a926a7231
SHA2568a57ebc2f09a2c28da6e9bfd41e48953d06c99dddc7103df08fefe90d446d350
SHA51220be27aec29b8666654a8ff2ec43738e2727073611fa085a26c672f36c04e42b0688b1c146b23c3d188a2f9a5483b9a057064ae7a293064caba2dbd55bf81767
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84