Analysis
- max time kernel
163s - max time network
170s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
03/03/2022, 08:12
General
- Target nigga b nostartupp.exe
- Size 1.5MB
- Sample220303-j3vlcsbfcq
- SHA256 da92268cf4a384c5d170d5d4ef9939183328e699c0097bd02b716757a2bc0dde
Malware Config
Extracted
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matiex
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https://api.telegram.org/bot1769394961:AAF5BB35akL859CwVaXypIqpVsGWlaKvi7A/sendMessage?chat_id=1735544933
Signatures
- Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
- Matiex Main Payload 1 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\nigga b nostartupp.exe"C:\Users\Admin\AppData\Local\Temp\nigga b nostartupp.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\DataSvcUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\DataSvcUtil.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngentask.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngentask.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- 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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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3700-138-0x0000000000400000-0x0000000000476000-memory.dmp
memory/3700-140-0x0000000005450000-0x0000000005451000-memory.dmp
memory/3700-139-0x000000007491E000-0x000000007491F000-memory.dmp
memory/3724-130-0x000000007491E000-0x000000007491F000-memory.dmp
memory/3724-131-0x0000000000050000-0x00000000001DE000-memory.dmp
memory/3724-132-0x0000000005A40000-0x0000000005FE4000-memory.dmp
memory/3724-133-0x00000000057E0000-0x000000000587C000-memory.dmp
memory/3724-134-0x0000000004CB0000-0x0000000004D42000-memory.dmp
memory/3724-135-0x0000000004E70000-0x0000000004E71000-memory.dmp
memory/3724-136-0x0000000002650000-0x000000000265A000-memory.dmp
memory/3724-137-0x00000000055F0000-0x0000000005656000-memory.dmp
memory/3724-141-0x00000000710A5000-0x00000000710A6000-memory.dmp