Analysis
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max time kernel
62s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
16-02-2023 07:27
Static task
static1
Behavioral task
behavioral1
Sample
97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe
Resource
win10v2004-20220812-en
General
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Target
97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe
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Size
624KB
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MD5
97671a2ff8c7f29b3ad0ab1e3d91f6c8
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SHA1
379f979aabf0e5ab11eba5a7d216e56ed2d31a95
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SHA256
4a879a46f6c35cd6b690a689a2cdc0dffb2acb9fac39ce2b7a5116607bc87753
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SHA512
6260247564a51b5734ce503fee1e832cb14b6013e497e0d65e92211d0eb3c7de644375d319c4c7e88b2e7bac358d5e793ed79bc10ea14e357457f155918270a7
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SSDEEP
12288:MSx9jlYDJjaLfZASHlz2bz1q5LEKtc6qn2yLxCTtJ5gKFqJq:P72bz1q5ttu2AET6KFqJq
Malware Config
Extracted
matiex
https://api.telegram.org/bot1277090811:AAHJ1mutkv0Wr1_9949BBcb3lR-DuRKH5RU/sendMessage?chat_id=1216524090
Signatures
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Matiex Main payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1504-64-0x0000000000400000-0x0000000000472000-memory.dmp family_matiex behavioral1/memory/1504-65-0x0000000000400000-0x0000000000472000-memory.dmp family_matiex behavioral1/memory/1504-66-0x0000000000400000-0x0000000000472000-memory.dmp family_matiex behavioral1/memory/1504-67-0x000000000046DDDE-mapping.dmp family_matiex behavioral1/memory/1504-69-0x0000000000400000-0x0000000000472000-memory.dmp family_matiex behavioral1/memory/1504-71-0x0000000000400000-0x0000000000472000-memory.dmp family_matiex -
Drops startup file 2 IoCs
Processes:
Powershell.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nuey.exe Powershell.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nuey.exe Powershell.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.
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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:
97671a2ff8c7f29b3ad0ab1e3d91f6c8.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 97671a2ff8c7f29b3ad0ab1e3d91f6c8.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 4 checkip.dyndns.org 8 freegeoip.app 9 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
97671a2ff8c7f29b3ad0ab1e3d91f6c8.exedescription pid process target process PID 2040 set thread context of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 564 1504 WerFault.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
Powershell.exepid process 1580 Powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Powershell.exe97671a2ff8c7f29b3ad0ab1e3d91f6c8.exedescription pid process Token: SeDebugPrivilege 1580 Powershell.exe Token: SeDebugPrivilege 1504 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe97671a2ff8c7f29b3ad0ab1e3d91f6c8.exedescription pid process target process PID 2040 wrote to memory of 1580 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe Powershell.exe PID 2040 wrote to memory of 1580 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe Powershell.exe PID 2040 wrote to memory of 1580 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe Powershell.exe PID 2040 wrote to memory of 1580 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe Powershell.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 2040 wrote to memory of 1504 2040 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe PID 1504 wrote to memory of 564 1504 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe WerFault.exe PID 1504 wrote to memory of 564 1504 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe WerFault.exe PID 1504 wrote to memory of 564 1504 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe WerFault.exe PID 1504 wrote to memory of 564 1504 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe WerFault.exe -
outlook_office_path 1 IoCs
Processes:
97671a2ff8c7f29b3ad0ab1e3d91f6c8.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe -
outlook_win_path 1 IoCs
Processes:
97671a2ff8c7f29b3ad0ab1e3d91f6c8.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe"C:\Users\Admin\AppData\Local\Temp\97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nuey.exe'2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe"C:\Users\Admin\AppData\Local\Temp\97671a2ff8c7f29b3ad0ab1e3d91f6c8.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1504 -s 17683⤵
- Program crash
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/564-74-0x0000000000000000-mapping.dmp
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memory/1504-69-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/1504-67-0x000000000046DDDE-mapping.dmp
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memory/1504-71-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/1504-64-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/1504-66-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/1504-61-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/1504-62-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/1504-65-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/1580-56-0x0000000000000000-mapping.dmp
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memory/1580-59-0x000000006F340000-0x000000006F8EB000-memory.dmpFilesize
5.7MB
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memory/1580-58-0x000000006F340000-0x000000006F8EB000-memory.dmpFilesize
5.7MB
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memory/2040-60-0x0000000000430000-0x0000000000444000-memory.dmpFilesize
80KB
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memory/2040-54-0x0000000001050000-0x00000000010F2000-memory.dmpFilesize
648KB
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memory/2040-72-0x0000000004875000-0x0000000004886000-memory.dmpFilesize
68KB
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memory/2040-55-0x0000000076041000-0x0000000076043000-memory.dmpFilesize
8KB