Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
24/05/2024, 12:44
General
- Target Customer Advisory - HS Code - Maersk Shipping/Customer Advisory - HS Code - Maersk Shipping.doc.exe
- Size 1.3MB
- Sample240524-pyxstada4w
- SHA256 61fc662a678c75e1f17ee6bb00ef853c6d51bd4ae90616c8ed4995c45e96206d
Malware Config
Extracted
-
remcos
-
FmGlobal
-
royaldachpharmacy.duckdns.org:6395
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
services.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
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hide_keylog_file
false
-
install_flag
true
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-GRT17F
-
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.
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Nirsoft 7 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\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⤵
-
-
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\yonqtuxmejcuyhqiggn"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
-
-
C:\ProgramData\Remcos\services.exeC:\ProgramData\Remcos\services.exe /stext "C:\Users\Admin\AppData\Local\Temp\iqsiumifsruzinemxqawbt"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook accounts
-
-
C:\ProgramData\Remcos\services.exeC:\ProgramData\Remcos\services.exe /stext "C:\Users\Admin\AppData\Local\Temp\klybveshgzmelbaqgbvymglvl"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
services.exe
yonqtuxmejcuyhqiggn
memory/2600-62-0x0000000045F20000-0x0000000045F39000-memory.dmp
memory/2600-84-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-15-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-18-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-19-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-20-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-21-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-22-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-23-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-106-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-105-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-13-0x0000000002530000-0x0000000002531000-memory.dmp
memory/2600-83-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-73-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-72-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-26-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-63-0x000000002DB00000-0x000000002EB00000-memory.dmp
memory/2600-58-0x0000000045F20000-0x0000000045F39000-memory.dmp
memory/2600-14-0x0000000000400000-0x000000000055C000-memory.dmp
memory/2600-61-0x0000000045F20000-0x0000000045F39000-memory.dmp
memory/3032-1-0x0000000000400000-0x000000000055C000-memory.dmp
memory/3032-0-0x0000000000730000-0x0000000000731000-memory.dmp
memory/3560-34-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3560-40-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3560-36-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3560-44-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3560-31-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4352-35-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4352-28-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4352-56-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4352-43-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4352-49-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5004-37-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5004-41-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5004-45-0x0000000000430000-0x00000000004F9000-memory.dmp
memory/5004-48-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5004-42-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5004-39-0x0000000000400000-0x0000000000424000-memory.dmp