Analysis
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max time kernel
147s -
max time network
149s -
platform
windows10-1703_x64 -
resource
win10-20231129-en -
resource tags
arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system -
submitted
13/12/2023, 23:23
Behavioral task
behavioral1
Sample
3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe
Resource
win10-20231129-en
General
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Target
3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe
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Size
1.6MB
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MD5
f63acc9a5868a5a3d47ce6f541f1e12a
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SHA1
100c7f0a2d44b5e77a6be30f11afc0815e7c8a23
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SHA256
3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51
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SHA512
0d5a4aaac03e13db7edd116777f84369ccc57edfa90b250c6e20b6d9123d322f7dae0b4781dc7cca3982f330296b5121809b14208abe2c201ca1a6bc2b98ae57
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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 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.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-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.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 4 ipinfo.io 3 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe File opened for modification C:\Windows\System32\GroupPolicy 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.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 4900 952 WerFault.exe 73 -
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 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.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 3872 schtasks.exe 3124 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 952 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe 952 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 952 wrote to memory of 3872 952 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe 74 PID 952 wrote to memory of 3872 952 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe 74 PID 952 wrote to memory of 3872 952 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe 74 PID 952 wrote to memory of 3124 952 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe 79 PID 952 wrote to memory of 3124 952 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe 79 PID 952 wrote to memory of 3124 952 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe 79 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.exe"C:\Users\Admin\AppData\Local\Temp\3de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51.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:952 -
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:3872
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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:3124
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 15922⤵
- Program crash
PID:4900
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:2284
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:4252
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5f63acc9a5868a5a3d47ce6f541f1e12a
SHA1100c7f0a2d44b5e77a6be30f11afc0815e7c8a23
SHA2563de96ce36b4a7a60a9f78933264c8691a1679b84f32b1d6658a84775a3412a51
SHA5120d5a4aaac03e13db7edd116777f84369ccc57edfa90b250c6e20b6d9123d322f7dae0b4781dc7cca3982f330296b5121809b14208abe2c201ca1a6bc2b98ae57
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Filesize
3KB
MD5f5a4c5ebdbee6ce5e87d17cdc3dd2fe7
SHA1a8a9b2f819856a9d900672332ced43eb3726ee6f
SHA256e654db4e267b20e5f29726d5f3d8bfd18ea2d2aeb99471620997426ccba39411
SHA5128d3a7dbb6416665f4cb923187de319da2ecd7bf807d8bda08acdf701c46e9b89b10b6f4aa12a09d3dd88fd626ac44ea2f5ea42b26c69bc18761e1aeadd5ca095
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Filesize
92KB
MD5d540e45d4e0edb6aab5ed14cc52f1fa5
SHA10c9279b204416dfa86ee22993bd3325b5bc762b1
SHA256ddd7cbb13ec9dca8859d1a0f54d3f326c0097a8d2809636d96d2e4d9cfa86153
SHA5123dc3b50b4948f522f4746a0ef63cdc40995dad3a3ac901b277a37296a33eee2977121f7aa529d9ef7f0cb878c6e15fac6c5570f1e5f73e73b5379633bd0caf9f