Analysis
-
max time kernel
144s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20220331-en -
submitted
14-04-2022 13:34
Static task
static1
Behavioral task
behavioral1
Sample
91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe
Resource
win7-20220331-en
Behavioral task
behavioral2
Sample
91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe
Resource
win10v2004-20220331-en
General
-
Target
91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe
-
Size
612KB
-
MD5
25955b8a6e157d6fed536656890d7a4f
-
SHA1
975e1ea02130733edeef268fd2d49413fc7252ff
-
SHA256
91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10
-
SHA512
e2c1ac12940511ff6119cd31f553405137aedcdfef76b05c7e910b753dc108217e6236ffa4939b4b6045cb663f50c01752026a7075d0a8f0420664506c7346dd
Malware Config
Signatures
-
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
-
MassLogger Main Payload 6 IoCs
resource yara_rule behavioral1/memory/1384-61-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/1384-62-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/1384-63-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/1384-64-0x0000000000481A3E-mapping.dmp family_masslogger behavioral1/memory/1384-66-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/1384-68-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger -
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-1-5-21-594401021-1341801952-2355885667-1000\Control Panel\International\Geo\Nation 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe -
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 35 IoCs
description ioc Process Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key opened \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key opened \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key opened \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key opened \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key opened \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key opened \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key opened \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Key created \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.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 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1460 set thread context of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1384 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1384 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 1384 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 1384 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 1384 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe Token: SeDebugPrivilege 1384 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1384 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 PID 1460 wrote to memory of 1384 1460 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe 28 -
outlook_office_path 1 IoCs
description ioc Process Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe -
outlook_win_path 1 IoCs
description ioc Process Key queried \REGISTRY\USER\S-1-5-21-594401021-1341801952-2355885667-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe"C:\Users\Admin\AppData\Local\Temp\91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460 -
C:\Users\Admin\AppData\Local\Temp\91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.exe"C:\Users\Admin\AppData\Local\Temp\91f31c820c62ae0a81cdc3951afc9087d458928e85124649655a11c9a1453a10.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:1384
-