Analysis
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max time kernel
122s -
max time network
149s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
08-01-2022 07:40
Static task
static1
Behavioral task
behavioral1
Sample
bef1a1a790d0fc2997ad2b61e45a681e.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
bef1a1a790d0fc2997ad2b61e45a681e.exe
Resource
win10-en-20211208
General
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Target
bef1a1a790d0fc2997ad2b61e45a681e.exe
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Size
380KB
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MD5
bef1a1a790d0fc2997ad2b61e45a681e
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SHA1
4977286549133a45f5314f0a61e59365ba5444e5
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SHA256
3b556f8a00ec76eae2da65106515802e6ccf7f207b93caa00908e412e34e2384
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SHA512
1a8bbf47f912f5959a21ebf4c92f8639305d8b45df5337fdf117bf9d258dab1685842269cc5fe6849d0e966a9ea6d0c42cec2e763b55d2ae8f93d964f709626e
Malware Config
Extracted
matiex
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
wellcome100
Signatures
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Matiex Main Payload 7 IoCs
Processes:
resource yara_rule behavioral1/memory/752-61-0x0000000000400000-0x0000000000474000-memory.dmp family_matiex behavioral1/memory/752-62-0x0000000000400000-0x0000000000474000-memory.dmp family_matiex behavioral1/memory/752-63-0x0000000000400000-0x0000000000474000-memory.dmp family_matiex behavioral1/memory/752-64-0x000000000046EA4E-mapping.dmp family_matiex behavioral1/memory/752-66-0x0000000000400000-0x0000000000474000-memory.dmp family_matiex behavioral1/memory/752-67-0x0000000000400000-0x0000000000474000-memory.dmp family_matiex behavioral1/memory/1568-70-0x0000000002390000-0x0000000002FDA000-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 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:
bef1a1a790d0fc2997ad2b61e45a681e.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bef1a1a790d0fc2997ad2b61e45a681e.exe Key opened \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bef1a1a790d0fc2997ad2b61e45a681e.exe Key opened \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bef1a1a790d0fc2997ad2b61e45a681e.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:
bef1a1a790d0fc2997ad2b61e45a681e.exedescription pid process target process PID 1720 set thread context of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
bef1a1a790d0fc2997ad2b61e45a681e.exePowershell.exebef1a1a790d0fc2997ad2b61e45a681e.exepid process 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe 1568 Powershell.exe 752 bef1a1a790d0fc2997ad2b61e45a681e.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
bef1a1a790d0fc2997ad2b61e45a681e.exepid process 752 bef1a1a790d0fc2997ad2b61e45a681e.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
bef1a1a790d0fc2997ad2b61e45a681e.exebef1a1a790d0fc2997ad2b61e45a681e.exePowershell.exedescription pid process Token: SeDebugPrivilege 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe Token: SeDebugPrivilege 752 bef1a1a790d0fc2997ad2b61e45a681e.exe Token: SeDebugPrivilege 1568 Powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
bef1a1a790d0fc2997ad2b61e45a681e.exepid process 752 bef1a1a790d0fc2997ad2b61e45a681e.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
bef1a1a790d0fc2997ad2b61e45a681e.exebef1a1a790d0fc2997ad2b61e45a681e.exedescription pid process target process PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 752 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe bef1a1a790d0fc2997ad2b61e45a681e.exe PID 1720 wrote to memory of 1568 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe Powershell.exe PID 1720 wrote to memory of 1568 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe Powershell.exe PID 1720 wrote to memory of 1568 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe Powershell.exe PID 1720 wrote to memory of 1568 1720 bef1a1a790d0fc2997ad2b61e45a681e.exe Powershell.exe PID 752 wrote to memory of 2032 752 bef1a1a790d0fc2997ad2b61e45a681e.exe netsh.exe PID 752 wrote to memory of 2032 752 bef1a1a790d0fc2997ad2b61e45a681e.exe netsh.exe PID 752 wrote to memory of 2032 752 bef1a1a790d0fc2997ad2b61e45a681e.exe netsh.exe PID 752 wrote to memory of 2032 752 bef1a1a790d0fc2997ad2b61e45a681e.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
bef1a1a790d0fc2997ad2b61e45a681e.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bef1a1a790d0fc2997ad2b61e45a681e.exe -
outlook_win_path 1 IoCs
Processes:
bef1a1a790d0fc2997ad2b61e45a681e.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bef1a1a790d0fc2997ad2b61e45a681e.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bef1a1a790d0fc2997ad2b61e45a681e.exe"C:\Users\Admin\AppData\Local\Temp\bef1a1a790d0fc2997ad2b61e45a681e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\bef1a1a790d0fc2997ad2b61e45a681e.exe"C:\Users\Admin\AppData\Local\Temp\bef1a1a790d0fc2997ad2b61e45a681e.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\VideoLAN\vlc.exe"'2⤵
- 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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memory/752-64-0x000000000046EA4E-mapping.dmp
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memory/752-69-0x0000000005920000-0x0000000005921000-memory.dmpFilesize
4KB
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memory/752-75-0x0000000005925000-0x0000000005936000-memory.dmpFilesize
68KB
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memory/752-66-0x0000000000400000-0x0000000000474000-memory.dmpFilesize
464KB
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memory/752-67-0x0000000000400000-0x0000000000474000-memory.dmpFilesize
464KB
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memory/752-59-0x0000000000400000-0x0000000000474000-memory.dmpFilesize
464KB
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memory/752-60-0x0000000000400000-0x0000000000474000-memory.dmpFilesize
464KB
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memory/752-61-0x0000000000400000-0x0000000000474000-memory.dmpFilesize
464KB
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memory/752-62-0x0000000000400000-0x0000000000474000-memory.dmpFilesize
464KB
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memory/752-63-0x0000000000400000-0x0000000000474000-memory.dmpFilesize
464KB
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memory/1568-65-0x0000000000000000-mapping.dmp
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memory/1568-68-0x0000000075601000-0x0000000075603000-memory.dmpFilesize
8KB
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memory/1568-70-0x0000000002390000-0x0000000002FDA000-memory.dmpFilesize
12.3MB
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memory/1568-72-0x0000000002390000-0x0000000002FDA000-memory.dmpFilesize
12.3MB
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memory/1568-71-0x0000000002390000-0x0000000002FDA000-memory.dmpFilesize
12.3MB
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memory/1720-57-0x00000000002E0000-0x00000000002E1000-memory.dmpFilesize
4KB
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memory/1720-58-0x0000000000A80000-0x0000000000AD6000-memory.dmpFilesize
344KB
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memory/1720-56-0x0000000004D50000-0x0000000004D51000-memory.dmpFilesize
4KB
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memory/1720-55-0x0000000000C60000-0x0000000000CC0000-memory.dmpFilesize
384KB
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memory/1720-54-0x0000000000C60000-0x0000000000CC0000-memory.dmpFilesize
384KB
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memory/2032-73-0x0000000000000000-mapping.dmp