Analysis
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max time kernel
125s -
max time network
130s -
platform
windows10-1703_x64 -
resource
win10-20231020-en -
resource tags
arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system -
submitted
13/12/2023, 23:17
Behavioral task
behavioral1
Sample
201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe
Resource
win10-20231020-en
General
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Target
201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe
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Size
1.6MB
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MD5
ab571aa16fe8f9a8dc8617f2a6a19043
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SHA1
6b2911614241750e25ea34f229423491d5d8a7c8
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SHA256
201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab
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SHA512
d72df7d102e0a83ce7f87460625d7009f40e5ad629aced6dbc0d178bd0410cdbfa5925dc00a7e309634c995362288772561994c623f92c951163a552098aba97
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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 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.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-1-5-21-2508097367-364665605-1201309312-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe Key opened \REGISTRY\USER\S-1-5-21-2508097367-364665605-1201309312-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe Key opened \REGISTRY\USER\S-1-5-21-2508097367-364665605-1201309312-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2508097367-364665605-1201309312-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.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 3 ipinfo.io 4 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe File opened for modification C:\Windows\System32\GroupPolicy 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.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 5084 2980 WerFault.exe 71 -
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 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.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 764 schtasks.exe 352 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2980 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe 2980 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2980 wrote to memory of 764 2980 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe 72 PID 2980 wrote to memory of 764 2980 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe 72 PID 2980 wrote to memory of 764 2980 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe 72 PID 2980 wrote to memory of 352 2980 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe 76 PID 2980 wrote to memory of 352 2980 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe 76 PID 2980 wrote to memory of 352 2980 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe 76 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2508097367-364665605-1201309312-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2508097367-364665605-1201309312-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.exe"C:\Users\Admin\AppData\Local\Temp\201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab.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:2980 -
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:764
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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:352
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 15802⤵
- Program crash
PID:5084
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:3672
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:2852
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5ab571aa16fe8f9a8dc8617f2a6a19043
SHA16b2911614241750e25ea34f229423491d5d8a7c8
SHA256201fcfce04f8d313c9cc1f43a2ac01fade791788a4e4abedf4d9d3a5ec5353ab
SHA512d72df7d102e0a83ce7f87460625d7009f40e5ad629aced6dbc0d178bd0410cdbfa5925dc00a7e309634c995362288772561994c623f92c951163a552098aba97
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Filesize
3KB
MD53e480304ae9468a957eb2163f1b9ed6d
SHA1d43a5c89bd9491e157a2f5c10078a5afec502325
SHA25695bd2de089360a85d1c8f609401f2334fc236de5226312446ee7ea17e36ebcfb
SHA512d5ea537b7adbffcfb80c3e4909e1656a99ef7d96d9c6c06e3bda08540e7e517ec71ff9372966bdef28bafa89851f42589ee3f5c87c3f1a3fe9c3aac09c1d3933
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Filesize
92KB
MD5908cc2dad5eb4412aaa2a85beb5f6341
SHA1a5f1b88092d219e71e8969d01ee2a3ae669a5600
SHA256210fc747617b64d2430897b4c11cd5dc81bc3a991d7c622b90918ce4d112baa4
SHA51238729498bd42d999c38dc769cc79057917a933080d608574460fe7ba7c9409db4e01979044151bc0922b1a9816398e25b7be59976bd318b1202b5d13fcf03cd9