Analysis
- max time kernel
124s - max time network
130s - platform
windows10-1703_x64 - resource
win10-20231023-en - resource tags
arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system - submitted
13/12/2023, 23:35
Behavioral task
behavioral1
Sample
f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe
Resource
win10-20231023-en
16 signatures
150 seconds
General
- Target f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe
- Size 1.6MB
- Sample231213-3lc5jaabbq
- SHA256 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71
- MD5 e8b5da99b95f7f07f71794b3901bdb87
- SHA1 ac665d485ab0209c99c3f00fe657efbd5cf1345f
- SHA512 56b0912f9d676c76ec8f043e8e3fb29b7c19bd03341a6fc99191ee71e53434116b0185ded6b71b03e69c29caf0039f52cdd6df847793a5c82b7eae90149b592a
- SSDEEP 49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe File opened for modification C:\Windows\System32\GroupPolicy f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
pid pid_target Process procid_target 4132 5112 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 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.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 5004 schtasks.exe 692 schtasks.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5112 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe 5112 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5112 wrote to memory of 5004 5112 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe 71 PID 5112 wrote to memory of 5004 5112 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe 71 PID 5112 wrote to memory of 5004 5112 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe 71 PID 5112 wrote to memory of 692 5112 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe 75 PID 5112 wrote to memory of 692 5112 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe 75 PID 5112 wrote to memory of 692 5112 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe 75 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe"C:\Users\Admin\AppData\Local\Temp\f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.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:5112 -
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:5004
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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:692
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5112 -s 16642⤵
- Program crash
PID:4132
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:4404
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:3396
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
- Size 1.6MB
- SHA256 f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71
- MD5 e8b5da99b95f7f07f71794b3901bdb87
- SHA1 ac665d485ab0209c99c3f00fe657efbd5cf1345f
- SHA512 56b0912f9d676c76ec8f043e8e3fb29b7c19bd03341a6fc99191ee71e53434116b0185ded6b71b03e69c29caf0039f52cdd6df847793a5c82b7eae90149b592a
- SSDEEP 49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\grandUIAwKTUGDsKb82Vf\information.txt
- Size 3KB
- SHA256 f9229ea84805ea652cf6af27663b98501819e9db24d1aaad8640a57853d4656f
- MD5 29f64ee4c6ef1cf1086ddcac858135ca
- SHA1 28affccf2b34357b45b92d13f0fb5acfb22e4b99
- SHA512 5bf5672640748b4e4f5307a746101f684df9e179d905bccafb3eee73694797abd1ad118d9836b5761391a9bb45c9e1388319987888cc7706bcec9ee6248153c0
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\posterBoxwKTUGDsKb82Vf\QdX9ITDLyCRBWeb Data
- Size 92KB
- SHA256 fdd37b06f981e619d6690edeaa17ba8d86c66cec9331632f3d9922bb2c6eabf5
- MD5 90a4e3db168e5bdc6b5e562ce7f41a06
- SHA1 2bf235c33b3395caefc1b9f1a280f83422f94d40
- SHA512 e30f0a67bbdc6507ac5babaa5fe1e0db7cde6b62812f6365fe83293e5fbba3f62db43c80c635a43b3b0ffb2e08ac2faf79eff0d3bea8e2aaaca6c55fb0833c0b
- SSDEEP 192:dtxbavrNdl9bH9CxbGsTjOnaVh6is6fJVum3:/Ravrbl9D9pnaVh6lMJVum3
- MD5 SHA1 SHA512 SSDEEP