Analysis
- max time kernel
151s - max time network
159s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
15/05/2024, 06:23
General
- Target Paidcopy2405.exe
- Size 287KB
- Sample240515-g5f5msdb69
- SHA256 6e849f1461600cf9c9d15613932c2ea2878cf71d3718d12d1c049c37c57d5d72
Malware Config
Extracted
-
remcos
-
RemoteHost
-
185.222.58.62:2404
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-GVORXS
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- 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 6 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
- 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
-
C:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exe"C:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exe"C:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exeC:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exe /stext "C:\Users\Admin\AppData\Local\Temp\fwxsiejqgqcnpadcj"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exeC:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exe /stext "C:\Users\Admin\AppData\Local\Temp\iykljxukuyuszgzgszon"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exeC:\Users\Admin\AppData\Local\Temp\Paidcopy2405.exe /stext "C:\Users\Admin\AppData\Local\Temp\ssqekpemihnfcmnkjkbpgwr"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
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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=3976 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
fwxsiejqgqcnpadcj
System.dll
memory/1844-27-0x0000000004560000-0x0000000006E40000-memory.dmp
memory/1844-28-0x0000000004560000-0x0000000006E40000-memory.dmp
memory/1844-29-0x00000000779A1000-0x0000000077AC1000-memory.dmp
memory/1844-30-0x0000000010004000-0x0000000010005000-memory.dmp
memory/1844-36-0x0000000004560000-0x0000000006E40000-memory.dmp
memory/2168-43-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2168-67-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2168-38-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2168-47-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3316-44-0x0000000001A30000-0x0000000004310000-memory.dmp
memory/3316-31-0x0000000001A30000-0x0000000004310000-memory.dmp
memory/3316-75-0x00000000007D0000-0x0000000001A24000-memory.dmp
memory/3316-74-0x00000000007D0000-0x0000000001A24000-memory.dmp
memory/3316-73-0x00000000007D0000-0x0000000001A24000-memory.dmp
memory/3316-72-0x00000000007D0000-0x0000000001A24000-memory.dmp
memory/3316-71-0x00000000007D0000-0x0000000001A24000-memory.dmp
memory/3316-64-0x0000000034B30000-0x0000000034B49000-memory.dmp
memory/3316-68-0x0000000034B30000-0x0000000034B49000-memory.dmp
memory/3316-32-0x00000000007D0000-0x0000000001A24000-memory.dmp
memory/3316-69-0x0000000034B30000-0x0000000034B49000-memory.dmp
memory/3936-45-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3936-52-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3936-40-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3936-41-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4064-42-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4064-48-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4064-46-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4064-39-0x0000000000400000-0x0000000000462000-memory.dmp