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
General
-
Target
f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71.exe
-
Size
1.6MB
-
MD5
e8b5da99b95f7f07f71794b3901bdb87
-
SHA1
ac665d485ab0209c99c3f00fe657efbd5cf1345f
-
SHA256
f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71
-
SHA512
56b0912f9d676c76ec8f043e8e3fb29b7c19bd03341a6fc99191ee71e53434116b0185ded6b71b03e69c29caf0039f52cdd6df847793a5c82b7eae90149b592a
-
SSDEEP
49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u
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
-
-
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
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5112 -s 16642⤵
- Program crash
PID:4132
-
-
\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:4404
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:3396
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.6MB
MD5e8b5da99b95f7f07f71794b3901bdb87
SHA1ac665d485ab0209c99c3f00fe657efbd5cf1345f
SHA256f359b2d460aa1481b4b2e2bab2fa6c154660c9bae7a47dbc383a87625fce4c71
SHA51256b0912f9d676c76ec8f043e8e3fb29b7c19bd03341a6fc99191ee71e53434116b0185ded6b71b03e69c29caf0039f52cdd6df847793a5c82b7eae90149b592a
-
Filesize
3KB
MD529f64ee4c6ef1cf1086ddcac858135ca
SHA128affccf2b34357b45b92d13f0fb5acfb22e4b99
SHA256f9229ea84805ea652cf6af27663b98501819e9db24d1aaad8640a57853d4656f
SHA5125bf5672640748b4e4f5307a746101f684df9e179d905bccafb3eee73694797abd1ad118d9836b5761391a9bb45c9e1388319987888cc7706bcec9ee6248153c0
-
Filesize
92KB
MD590a4e3db168e5bdc6b5e562ce7f41a06
SHA12bf235c33b3395caefc1b9f1a280f83422f94d40
SHA256fdd37b06f981e619d6690edeaa17ba8d86c66cec9331632f3d9922bb2c6eabf5
SHA512e30f0a67bbdc6507ac5babaa5fe1e0db7cde6b62812f6365fe83293e5fbba3f62db43c80c635a43b3b0ffb2e08ac2faf79eff0d3bea8e2aaaca6c55fb0833c0b