Analysis
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max time kernel
121s -
max time network
114s -
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, 21:36
Behavioral task
behavioral1
Sample
bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe
Resource
win10-20231020-en
General
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Target
bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe
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Size
1.6MB
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MD5
1bd531249f2fa052c371f72ac7e1d034
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SHA1
3265f546c36a50d21aaf65e765702e895608f72d
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SHA256
bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d
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SHA512
aed88bc161b4c9a7e3335dc0ba90c600f46a96a3f4ba01a915d76639f3f3b2b1ffc2ba7ab76130bce89888ce57b0966bd697e2ed20cf0eb53d7729bc43b489ce
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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 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe Key opened \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe Key opened \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 3 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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 5076 4252 WerFault.exe 70 -
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 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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 2996 schtasks.exe 4536 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4252 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe 4252 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4252 wrote to memory of 2996 4252 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe 71 PID 4252 wrote to memory of 2996 4252 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe 71 PID 4252 wrote to memory of 2996 4252 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe 71 PID 4252 wrote to memory of 4536 4252 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe 75 PID 4252 wrote to memory of 4536 4252 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe 75 PID 4252 wrote to memory of 4536 4252 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe 75 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2640874492-649017405-3475600720-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.exe"C:\Users\Admin\AppData\Local\Temp\bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d.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:4252 -
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:2996
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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:4536
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4252 -s 15842⤵
- Program crash
PID:5076
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4572
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:3076
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD51bd531249f2fa052c371f72ac7e1d034
SHA13265f546c36a50d21aaf65e765702e895608f72d
SHA256bb98ddfc569c38ba2d52a7b6da60129fa9a01f1198c7adbd4c12e0a4eb2f780d
SHA512aed88bc161b4c9a7e3335dc0ba90c600f46a96a3f4ba01a915d76639f3f3b2b1ffc2ba7ab76130bce89888ce57b0966bd697e2ed20cf0eb53d7729bc43b489ce
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Filesize
3KB
MD52d910440dd2c1501d46f16f31080b695
SHA1fc716d36c31090215c1b08592085a2fc82f5a2e6
SHA2562d15bdd51539d3d01d3432b0689879a7647996dfbf0794897864b8edd49d9576
SHA512f5f6584caa6cc78e9d34f744bfda7f91d32e1727e07644910b5d2475444e5800abd19213d30534c3c003e761b4ceec09f4065b6f045acce480ace31886ac8b1c
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Filesize
92KB
MD53f194152deb86dd24c32d81e7749d57e
SHA1b1c3b2d10013dfd65ef8d44fd475ac76e1815203
SHA2569cad93e2e9da675749e0e07f1b61d65ab1333b17a82b9daeaac035646dcbc5aa
SHA512c4e922f8c3a304d2faf7148c47f202e5062c419ff0d1330b1626f3e2077642e850377a531fe7ac7f935f22b1b64cfab5169305d6ad79fc8bda49dbff37f98fbf