Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
24/05/2024, 01:01
General
- Target Customer Advisory - HS Code - Maersk Shipping/Customer Advisory - HS Code - Maersk Shipping.doc.exe
- Size 1.3MB
- Sample240524-bde6dafe2z
- 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
-
connect_interval
1
-
copy_file
services.exe
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copy_folder
Remcos
-
delete_file
false
-
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
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-GRT17F
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 15 IoCs
- Detects executables built or packed with MPress PE compressor 18 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 3 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 3 IoCs
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Nirsoft 9 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
-
C:\Users\Admin\AppData\Local\Temp\Customer Advisory - HS Code - Maersk Shipping\Customer Advisory - HS Code - Maersk Shipping.doc.exe"C:\Users\Admin\AppData\Local\Temp\Customer Advisory - HS Code - Maersk Shipping\Customer Advisory - HS Code - Maersk Shipping.doc.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\Customer Advisory - HS Code - Maersk Shipping\Customer Advisory - HS Code - Maersk Shipping.doc.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\kxxlqqtrfdbbnwmtijmcap"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\urcdrieltltgqlaxauhdlcepo"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\etqwsbpnhtltarwbjetfopygprdu"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4160 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
services.exe
kxxlqqtrfdbbnwmtijmcap
memory/556-28-0x0000000000400000-0x0000000000478000-memory.dmp
memory/556-43-0x0000000000400000-0x0000000000478000-memory.dmp
memory/556-38-0x0000000000400000-0x0000000000478000-memory.dmp
memory/556-66-0x0000000000400000-0x0000000000478000-memory.dmp
memory/556-37-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1904-0-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/1904-9-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/1904-1-0x0000000000400000-0x000000000055C000-memory.dmp
memory/2336-53-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2336-45-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2336-40-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2336-50-0x0000000000430000-0x00000000004F9000-memory.dmp
memory/2336-33-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2336-35-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4580-25-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-74-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-106-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-95-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-24-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-26-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-42-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-85-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-23-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-46-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-84-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-22-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-21-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-18-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-57-0x0000000027B00000-0x0000000028B00000-memory.dmp
memory/4580-17-0x0000000000400000-0x000000000055C000-memory.dmp
memory/4580-69-0x000000003FEC0000-0x000000003FED9000-memory.dmp
memory/4580-73-0x000000003FEC0000-0x000000003FED9000-memory.dmp
memory/4580-72-0x000000003FEC0000-0x000000003FED9000-memory.dmp
memory/4580-15-0x0000000002630000-0x0000000002631000-memory.dmp
memory/4580-79-0x0000000002630000-0x0000000002631000-memory.dmp
memory/4928-39-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4928-49-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4928-44-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4928-31-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4928-36-0x0000000000400000-0x0000000000462000-memory.dmp