Analysis
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max time kernel
127s -
max time network
135s -
platform
windows10-1703_x64 -
resource
win10-20231025-en -
resource tags
arch:x64arch:x86image:win10-20231025-enlocale:en-usos:windows10-1703-x64system -
submitted
13/12/2023, 21:37
Behavioral task
behavioral1
Sample
b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe
Resource
win10-20231025-en
General
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Target
b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe
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Size
1.6MB
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MD5
47d99588a42bd1fb9d272c449c4ab9cc
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SHA1
d2461d29500a220e26a7408420c191b8c4eed3eb
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SHA256
b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b
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SHA512
11c31f3947e60bd9e4c7c98cf8057ae701d91f8958b86a0d0d33abccae198a84c70c22762b0d153ea21a6b8142969f45934a2351003abb20d6ec202076710138
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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 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.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-1-5-21-2852493121-870915337-2715324265-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe Key opened \REGISTRY\USER\S-1-5-21-2852493121-870915337-2715324265-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe Key opened \REGISTRY\USER\S-1-5-21-2852493121-870915337-2715324265-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2852493121-870915337-2715324265-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.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 created C:\Windows\System32\GroupPolicy\Machine\Registry.pol b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe File opened for modification C:\Windows\System32\GroupPolicy b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.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 2164 1828 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 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.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 4528 schtasks.exe 4376 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1828 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe 1828 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1828 wrote to memory of 4528 1828 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe 71 PID 1828 wrote to memory of 4528 1828 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe 71 PID 1828 wrote to memory of 4528 1828 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe 71 PID 1828 wrote to memory of 4376 1828 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe 75 PID 1828 wrote to memory of 4376 1828 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe 75 PID 1828 wrote to memory of 4376 1828 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe 75 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2852493121-870915337-2715324265-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2852493121-870915337-2715324265-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.exe"C:\Users\Admin\AppData\Local\Temp\b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b.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:1828 -
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:4528
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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:4376
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 16002⤵
- Program crash
PID:2164
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:224
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:920
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD547d99588a42bd1fb9d272c449c4ab9cc
SHA1d2461d29500a220e26a7408420c191b8c4eed3eb
SHA256b02b8ac5bc8420a269b0a43a0e792e59f4c6d2c6c0cd8825558c59ce3b74b86b
SHA51211c31f3947e60bd9e4c7c98cf8057ae701d91f8958b86a0d0d33abccae198a84c70c22762b0d153ea21a6b8142969f45934a2351003abb20d6ec202076710138
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Filesize
3KB
MD53d7497924c74cd6ec70469ae33a5208c
SHA1c46b09121c86d19396039bb7613700a3f521bb3a
SHA2568e86f5542ff3f2d1c870be0a7f65c958f46432383999bd79ca9af07ce6d04f9c
SHA512dc4d4905869355037aa7ba433f96d55ac6b3cbf42497fb7ccf7ba4bb5de89ed31fcef510bd11716ee487f7bef9354ece751629abb20d677d01b90a871e365a8c
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Filesize
92KB
MD55962032f5f9ef10ad7afb6c595abf5c6
SHA1fe47554bacd8ac1f3b9c249eb36c50aa0a8fd241
SHA2560a5f892414b30f17d2a99466c400da50eef364501550d1835578042b084baa1e
SHA512c4fb5d51f9b973f331a381577c7e5df57a92547d8192dfa100f41d0e1f5c1075dc04709372f7de929d433ac2a2b8c432c876744a41718b2005fc3453d2260f8e