Analysis
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max time kernel
111s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
13-02-2023 14:47
Static task
static1
Behavioral task
behavioral1
Sample
638d983d397e9ce408d91ae82b632106.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
638d983d397e9ce408d91ae82b632106.exe
Resource
win10v2004-20221111-en
General
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Target
638d983d397e9ce408d91ae82b632106.exe
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Size
640KB
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MD5
638d983d397e9ce408d91ae82b632106
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SHA1
477a1c06ff37abf3494373de86cfbf2d44d6bc1f
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SHA256
9fe57643fb90f5f1ca560a6a9861296d58290795f061f22b15dd19dcfeb882bc
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SHA512
04053481e52235cc3b6f2a21ccfd92ad9c448c80c9560ecd9ea03a0c9d771843e6830b03a0c9a2ec488a6855e0f13470f4beef3ef14608587850ecc92965e2c5
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SSDEEP
12288:aCe8LxGQ7MRSRAsDYeQBWlWc4b70eU06zTwjZ++R5Mi6/ZVgCp0TLAXZoCzZW:aN88Q7aQjDYLWlhW7JUyZ++R5PyZ5pcQ
Malware Config
Signatures
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Matiex Main payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/3636-137-0x0000000000400000-0x0000000000482000-memory.dmp family_matiex -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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
Processes:
638d983d397e9ce408d91ae82b632106.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 638d983d397e9ce408d91ae82b632106.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 638d983d397e9ce408d91ae82b632106.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 638d983d397e9ce408d91ae82b632106.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 8 checkip.dyndns.org 10 freegeoip.app 11 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
638d983d397e9ce408d91ae82b632106.exedescription pid process target process PID 4936 set thread context of 3636 4936 638d983d397e9ce408d91ae82b632106.exe 638d983d397e9ce408d91ae82b632106.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1648 3636 WerFault.exe 638d983d397e9ce408d91ae82b632106.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
638d983d397e9ce408d91ae82b632106.exepid process 4936 638d983d397e9ce408d91ae82b632106.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
638d983d397e9ce408d91ae82b632106.exedescription pid process Token: SeDebugPrivilege 3636 638d983d397e9ce408d91ae82b632106.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
638d983d397e9ce408d91ae82b632106.execmd.exedescription pid process target process PID 4936 wrote to memory of 2960 4936 638d983d397e9ce408d91ae82b632106.exe cmd.exe PID 4936 wrote to memory of 2960 4936 638d983d397e9ce408d91ae82b632106.exe cmd.exe PID 4936 wrote to memory of 2960 4936 638d983d397e9ce408d91ae82b632106.exe cmd.exe PID 4936 wrote to memory of 3636 4936 638d983d397e9ce408d91ae82b632106.exe 638d983d397e9ce408d91ae82b632106.exe PID 4936 wrote to memory of 3636 4936 638d983d397e9ce408d91ae82b632106.exe 638d983d397e9ce408d91ae82b632106.exe PID 4936 wrote to memory of 3636 4936 638d983d397e9ce408d91ae82b632106.exe 638d983d397e9ce408d91ae82b632106.exe PID 4936 wrote to memory of 3636 4936 638d983d397e9ce408d91ae82b632106.exe 638d983d397e9ce408d91ae82b632106.exe PID 2960 wrote to memory of 1588 2960 cmd.exe schtasks.exe PID 2960 wrote to memory of 1588 2960 cmd.exe schtasks.exe PID 2960 wrote to memory of 1588 2960 cmd.exe schtasks.exe -
outlook_office_path 1 IoCs
Processes:
638d983d397e9ce408d91ae82b632106.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 638d983d397e9ce408d91ae82b632106.exe -
outlook_win_path 1 IoCs
Processes:
638d983d397e9ce408d91ae82b632106.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 638d983d397e9ce408d91ae82b632106.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\638d983d397e9ce408d91ae82b632106.exe"C:\Users\Admin\AppData\Local\Temp\638d983d397e9ce408d91ae82b632106.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xml"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\638d983d397e9ce408d91ae82b632106.exe"C:\Users\Admin\AppData\Local\Temp\638d983d397e9ce408d91ae82b632106.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3636 -s 18923⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3636 -ip 36361⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\1cf577b9dd994dc5b1fb65c6529fbb44.xmlFilesize
1KB
MD5e93833a5dc811722d20e043ecd456098
SHA10b3219317882da8cd167b9129384d11d9f08e482
SHA2564e6246a2b91980f9c86b85ec9941875fe41bdb8c13ef7f189ee4560fa8a8e189
SHA512c69144a3aa4a52cf888c206d85d41db7aeca5348b186d45cf027b7a364145e870bced07595f84002f7f36dceed3bfc2a85848113be1c5b1e72240979b019c1b5
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memory/1588-135-0x0000000000000000-mapping.dmp
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memory/2960-132-0x0000000000000000-mapping.dmp
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memory/3636-133-0x0000000000000000-mapping.dmp
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memory/3636-137-0x0000000000400000-0x0000000000482000-memory.dmpFilesize
520KB
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memory/3636-139-0x00000000055E0000-0x000000000567C000-memory.dmpFilesize
624KB
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memory/3636-140-0x0000000005C30000-0x00000000061D4000-memory.dmpFilesize
5.6MB
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memory/3636-141-0x00000000056F0000-0x0000000005756000-memory.dmpFilesize
408KB
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memory/4936-134-0x0000000000CFA000-0x0000000000D00000-memory.dmpFilesize
24KB
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memory/4936-136-0x0000000000CFA000-0x0000000000D00000-memory.dmpFilesize
24KB