Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
24/05/2024, 13:21
General
- Target 61fc662a678c75e1f17ee6bb00ef853c6d51bd4ae90616c8ed4995c45e96206d.exe
- Size 1.3MB
- Sample240524-ql47ssff64
- SHA256 61fc662a678c75e1f17ee6bb00ef853c6d51bd4ae90616c8ed4995c45e96206d
Malware Config
Extracted
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remcos
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FmGlobal
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royaldachpharmacy.duckdns.org:6395
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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
services.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
true
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-GRT17F
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screenshot_crypt
false
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screenshot_flag
false
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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 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Nirsoft 8 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 4 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 5 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Script User-Agent 4 IoCs
Uses user-agent string associated with script host/environment.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\61fc662a678c75e1f17ee6bb00ef853c6d51bd4ae90616c8ed4995c45e96206d.exe"C:\Users\Admin\AppData\Local\Temp\61fc662a678c75e1f17ee6bb00ef853c6d51bd4ae90616c8ed4995c45e96206d.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\extrac32.exeC:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\61fc662a678c75e1f17ee6bb00ef853c6d51bd4ae90616c8ed4995c45e96206d.exe C:\\Users\\Public\\Libraries\\Eoosrcxm.PIF2⤵
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C:\ProgramData\Remcos\services.exe"C:\ProgramData\Remcos\services.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Remcos\services.exeC:\ProgramData\Remcos\services.exe /stext "C:\Users\Admin\AppData\Local\Temp\vwheepligjftp"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
-
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C:\ProgramData\Remcos\services.exeC:\ProgramData\Remcos\services.exe /stext "C:\Users\Admin\AppData\Local\Temp\xynwfivcurxyzlar"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook accounts
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C:\ProgramData\Remcos\services.exeC:\ProgramData\Remcos\services.exe /stext "C:\Users\Admin\AppData\Local\Temp\hsspgageizplbzxdyow"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
logs.dat
services.exe
vwheepligjftp
memory/2276-26-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-28-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-20-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-21-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-23-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-22-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-24-0x0000000000400000-0x000000000055C000-memory.dmp
memory/2276-16-0x00000000024F0000-0x00000000024F1000-memory.dmp
memory/2276-27-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-17-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-29-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-30-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-32-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-77-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-76-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-87-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-67-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2276-65-0x000000004BFC0000-0x000000004BFD9000-memory.dmp
memory/2276-66-0x000000004BFC0000-0x000000004BFD9000-memory.dmp
memory/2276-62-0x000000004BFC0000-0x000000004BFD9000-memory.dmp
memory/2384-59-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2384-43-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2384-45-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2384-37-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2384-38-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3340-49-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3340-48-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3340-46-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3340-53-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3340-52-0x0000000000430000-0x00000000004F9000-memory.dmp
memory/4536-39-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4536-50-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4536-41-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4536-42-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4536-44-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4976-0-0x0000000000A70000-0x0000000000A71000-memory.dmp
memory/4976-1-0x0000000000400000-0x000000000055C000-memory.dmp