Analysis
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max time kernel
145s -
max time network
151s -
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, 23:23
Behavioral task
behavioral1
Sample
feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe
Resource
win10v2004-20231127-en
General
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Target
feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe
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Size
1.6MB
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MD5
d04c9a34fdb7ddd3c7c254f5cb3af855
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SHA1
95ff0fe659698e126aa406933aadedfda1f50766
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SHA256
feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f
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SHA512
7abe1b4bf1f46b5f64a7f5d4d2bd09ad42276d607427bddf3d28872bda372ab978530828bcd5a994b898884a1a356241ab0cfbeefe448b55f401228628e99c18
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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 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.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-1-5-21-1067295379-1486014338-1703171060-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe Key opened \REGISTRY\USER\S-1-5-21-1067295379-1486014338-1703171060-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe Key opened \REGISTRY\USER\S-1-5-21-1067295379-1486014338-1703171060-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1067295379-1486014338-1703171060-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.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 22 ipinfo.io 23 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.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 4836 1176 WerFault.exe 86 -
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 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.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 1052 schtasks.exe 4408 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1176 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe 1176 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1176 wrote to memory of 1052 1176 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe 88 PID 1176 wrote to memory of 1052 1176 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe 88 PID 1176 wrote to memory of 1052 1176 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe 88 PID 1176 wrote to memory of 4408 1176 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe 92 PID 1176 wrote to memory of 4408 1176 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe 92 PID 1176 wrote to memory of 4408 1176 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1067295379-1486014338-1703171060-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1067295379-1486014338-1703171060-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.exe"C:\Users\Admin\AppData\Local\Temp\feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f.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:1176 -
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:1052
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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:4408
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1176 -s 16682⤵
- Program crash
PID:4836
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:5088
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:2784
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1176 -ip 11761⤵PID:2264
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5d04c9a34fdb7ddd3c7c254f5cb3af855
SHA195ff0fe659698e126aa406933aadedfda1f50766
SHA256feeaa17ae8353f6ec1a5e423db0807b375da4239a422779f93f338314c93e93f
SHA5127abe1b4bf1f46b5f64a7f5d4d2bd09ad42276d607427bddf3d28872bda372ab978530828bcd5a994b898884a1a356241ab0cfbeefe448b55f401228628e99c18
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Filesize
3KB
MD5f33337d2700f6cdd75c3ed0ac12fb98e
SHA18001ae8da9144652433cd026765fc7492849a6fe
SHA25695a9c3c72fe3ff886cab808d739e9ee75c58c1b6f73adcb34fd677f91a55a7dc
SHA512ae0b4f8126aa45f2a38ea661c1f46ee4584848259dbcf21375a4592b13804651d14a2ba0fe6f36f008c2f39a52e7481470c420efeee85d7e853e855597f7c998
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Filesize
92KB
MD515b15858232eb73939154fa51070f7d9
SHA1c5d442be8afd48c12f3e10324d74c274ebad25d8
SHA256415b5d95ff3e636716deaa385106694fcc257f82be4fe831fdaed420bba50cf2
SHA5128477c2a94ecbecff9d79d3f73713d568ab29260cd51397f54939629531aa84eeaaffc742bef744da071718b597b15e8870c547cf1dfeb122686bb9e59a7dfd86
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84