Analysis
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max time kernel
144s -
max time network
148s -
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, 22:14
Behavioral task
behavioral1
Sample
677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe
Resource
win10v2004-20231127-en
General
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Target
677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe
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Size
1.6MB
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MD5
ccab7f1cbee37bf9944c33304752b6a4
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SHA1
f22dc6edd02036800aecb2b08f3a2d8f5e67235e
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SHA256
677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41
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SHA512
8a20097e2efb0aabaf3cdf7ffb81a36dec1a4eb21e452c99adde6c030319b4bbad61e4492cc30b3ce9543f22160eb4e5c887f70555d65f9cd13e642f5c3e1db9
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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 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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 23 ipinfo.io 25 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe File opened for modification C:\Windows\System32\GroupPolicy 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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 1604 2544 WerFault.exe 85 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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 2900 schtasks.exe 1636 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2544 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe 2544 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2544 wrote to memory of 2900 2544 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe 87 PID 2544 wrote to memory of 2900 2544 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe 87 PID 2544 wrote to memory of 2900 2544 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe 87 PID 2544 wrote to memory of 1636 2544 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe 91 PID 2544 wrote to memory of 1636 2544 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe 91 PID 2544 wrote to memory of 1636 2544 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.exe"C:\Users\Admin\AppData\Local\Temp\677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41.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:2544 -
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:2900
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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:1636
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 16802⤵
- Program crash
PID:1604
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4480
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:3868
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2544 -ip 25441⤵PID:2172
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5ccab7f1cbee37bf9944c33304752b6a4
SHA1f22dc6edd02036800aecb2b08f3a2d8f5e67235e
SHA256677730dd205dfc8ad02ffa4b56330cbab47989be1a5e5147552b4472b17cee41
SHA5128a20097e2efb0aabaf3cdf7ffb81a36dec1a4eb21e452c99adde6c030319b4bbad61e4492cc30b3ce9543f22160eb4e5c887f70555d65f9cd13e642f5c3e1db9
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Filesize
3KB
MD5e38ee8b554473e1bf6c3114f90972539
SHA155520428285ed28ea615ba354cde4c58fe9888f1
SHA256175256ba529228fff23c7f6735a5224929f7d97b6ccb2d99b873acd915b3852d
SHA512bbe60737e58a545e9b5b689974bcf6c01cda5f9b265302ed62953189f4f8776dde6b7dceb1f2eabc938e6cb04ba0df35e76a043c7e24fd6641d8e014191937bc
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Filesize
92KB
MD5250f6cee6a8be4a85cd0d78b8f9ac854
SHA148a5be711abe88c0efb7204f6c792e67a99d390a
SHA25621e090219937792f360789c94785cf969cf22fb9e2ae145dec419dc4beab1321
SHA5124685c2cbc34566879e5c494f1433996ce9541e048a87036876d0ec426a02a13af6ed606575306522def4dd19a3fcc34b95335f492b21960b28e8f12be82a35b7
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84