Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
04/06/2024, 12:14
General
- Target c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exe
- Size 411KB
- Sample240604-pea5psff9y
- SHA256 c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32
Malware Config
Extracted
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remcos
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CLIENT
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107.150.18.202:2404
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-J3QQTH
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screenshot_crypt
false
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screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 4 IoCs
Password recovery tool for various web browsers
- Nirsoft 8 IoCs
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exe"C:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exe"C:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exeC:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exe /stext "C:\Users\Admin\AppData\Local\Temp\rnrheyuoxcbkfqvjqkudypuqonjqmdxez"3⤵
- Suspicious behavior: EnumeratesProcesses
-
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C:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exeC:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exe /stext "C:\Users\Admin\AppData\Local\Temp\cperf"3⤵
- Accesses Microsoft Outlook accounts
-
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C:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exeC:\Users\Admin\AppData\Local\Temp\c6e661d982981e4de5cbcba98e28bac1aa3a9518d4e5c605680480962f917c32.exe /stext "C:\Users\Admin\AppData\Local\Temp\ejkkxiqj"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
rasterside.ini
System.dll
rnrheyuoxcbkfqvjqkudypuqonjqmdxez
memory/1996-69-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1996-71-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1996-64-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1996-66-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1996-68-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2104-59-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2104-67-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2104-53-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2104-63-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2708-40-0x0000000077661000-0x0000000077781000-memory.dmp
memory/2708-41-0x00000000744C4000-0x00000000744C5000-memory.dmp
memory/3336-86-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-80-0x0000000037C00000-0x0000000037C19000-memory.dmp
memory/3336-94-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-43-0x0000000077661000-0x0000000077781000-memory.dmp
memory/3336-42-0x00000000776E8000-0x00000000776E9000-memory.dmp
memory/3336-92-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-81-0x0000000037C00000-0x0000000037C19000-memory.dmp
memory/3336-90-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-89-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-88-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-45-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-87-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-85-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-82-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-83-0x0000000077661000-0x0000000077781000-memory.dmp
memory/3336-84-0x0000000000450000-0x00000000016A4000-memory.dmp
memory/3336-77-0x0000000037C00000-0x0000000037C19000-memory.dmp
memory/3336-49-0x0000000077661000-0x0000000077781000-memory.dmp
memory/5048-56-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5048-55-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5048-74-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5048-51-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5048-57-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5048-54-0x0000000000400000-0x0000000000478000-memory.dmp