Analysis
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max time kernel
117s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20220310-en -
submitted
27-03-2022 10:14
Static task
static1
Behavioral task
behavioral1
Sample
338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe
Resource
win7-20220311-en
Behavioral task
behavioral2
Sample
338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe
Resource
win10v2004-20220310-en
General
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Target
338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe
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Size
745KB
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MD5
fda8ea8e879680612ddf94866615773f
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SHA1
02d25911c9cc8337cece038dbc52bd6de9841219
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SHA256
338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934
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SHA512
f674658fb37e236fa7884d5b9735051d22b93ea14341dc62601e914a7988c0597488c14e39688ff1d630de1ebad0bf88cb7bb9d622dbe3925d7756256cd42b85
Malware Config
Extracted
C:\Users\Admin\AppData\Local\5A22B5680F\Log.txt
masslogger
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
yara_rule masslogger_log_file -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe -
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 42 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vlc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\VideoLAN\\vlc.exe\"" 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe -
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 38 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4464 set thread context of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3176 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3176 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 3176 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 3176 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 3176 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe Token: SeDebugPrivilege 3176 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3176 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4464 wrote to memory of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 PID 4464 wrote to memory of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 PID 4464 wrote to memory of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 PID 4464 wrote to memory of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 PID 4464 wrote to memory of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 PID 4464 wrote to memory of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 PID 4464 wrote to memory of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 PID 4464 wrote to memory of 3176 4464 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe 89 -
outlook_office_path 1 IoCs
description ioc Process Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe -
outlook_win_path 1 IoCs
description ioc Process Key queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe"C:\Users\Admin\AppData\Local\Temp\338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4464 -
C:\Users\Admin\AppData\Local\Temp\338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe"C:\Users\Admin\AppData\Local\Temp\338f675be1c7412047b0d16c39b30f2709879566fa60ef127513c3c049561934.exe"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:3176
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