Analysis
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max time kernel
121s -
max time network
137s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
09-12-2021 13:59
Static task
static1
Behavioral task
behavioral1
Sample
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe
Resource
win10-en-20211208
General
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Target
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe
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Size
1.5MB
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MD5
8e5e31f5dd73631eddc2cb57e0f48a9a
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SHA1
13bd3cf85edef10be8b60c96334eda4f30eda0ba
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SHA256
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d
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SHA512
43cf5099575d698ffbd13dc82aa76e2358629d52217cd9d019acfb52c87a29e1ef9750dee756d164787544c76cc68464b014e3f17b3236467952ef95215a94d1
Malware Config
Extracted
matiex
https://api.telegram.org/bot1769394961:AAF5BB35akL859CwVaXypIqpVsGWlaKvi7A/sendMessage?chat_id=1735544933
Signatures
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Matiex Main Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/4088-125-0x0000000000400000-0x0000000000476000-memory.dmp family_matiex behavioral1/memory/4088-126-0x000000000047032E-mapping.dmp family_matiex behavioral1/memory/4088-133-0x0000000005440000-0x000000000593E000-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:
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.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.
Processes:
flow ioc 26 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exedescription pid process target process PID 2680 set thread context of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 696 4088 WerFault.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
WerFault.exepid process 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe 696 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exeWerFault.exedescription pid process Token: SeDebugPrivilege 4088 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe Token: SeRestorePrivilege 696 WerFault.exe Token: SeBackupPrivilege 696 WerFault.exe Token: SeDebugPrivilege 696 WerFault.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exedescription pid process target process PID 2680 wrote to memory of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe PID 2680 wrote to memory of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe PID 2680 wrote to memory of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe PID 2680 wrote to memory of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe PID 2680 wrote to memory of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe PID 2680 wrote to memory of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe PID 2680 wrote to memory of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe PID 2680 wrote to memory of 4088 2680 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe -
outlook_office_path 1 IoCs
Processes:
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe -
outlook_win_path 1 IoCs
Processes:
356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe"C:\Users\Admin\AppData\Local\Temp\356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe"C:\Users\Admin\AppData\Local\Temp\356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.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 4088 -s 17203⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\356c38de132ad392f3155f48d11f97efbd7892a04499aea67dab5a76e85cb68d.exe.logMD5
f1181bc4bdff57024c4121f645548332
SHA1d431ee3a3a5afcae2c4537b1d445054a0a95f6e6
SHA256f1a7e138b25d0cb24bb4b23bd781b0dd357afd49d45e19ffa44cdb80170336ad
SHA512cf8059f289bcb4f33e82a2c4851fade486bd449793a39718d49bc357efd09689150aedd277c5ebcf79b5ebb4bbe36f0cbb72510a50398bee804ffd9c889604e3
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memory/2680-122-0x0000000008570000-0x0000000008571000-memory.dmpFilesize
4KB
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memory/2680-118-0x00000000050D0000-0x00000000050D1000-memory.dmpFilesize
4KB
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memory/2680-119-0x0000000004F90000-0x0000000005022000-memory.dmpFilesize
584KB
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memory/2680-120-0x0000000005180000-0x0000000005181000-memory.dmpFilesize
4KB
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memory/2680-121-0x00000000055C0000-0x00000000055C7000-memory.dmpFilesize
28KB
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memory/2680-115-0x0000000000650000-0x0000000000651000-memory.dmpFilesize
4KB
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memory/2680-123-0x00000000088E0000-0x00000000088E1000-memory.dmpFilesize
4KB
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memory/2680-124-0x0000000008C50000-0x0000000008DC3000-memory.dmpFilesize
1.4MB
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memory/2680-117-0x00000000055D0000-0x00000000055D1000-memory.dmpFilesize
4KB
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memory/4088-125-0x0000000000400000-0x0000000000476000-memory.dmpFilesize
472KB
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memory/4088-126-0x000000000047032E-mapping.dmp
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memory/4088-132-0x00000000053C0000-0x00000000053C1000-memory.dmpFilesize
4KB
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memory/4088-133-0x0000000005440000-0x000000000593E000-memory.dmpFilesize
5.0MB