Analysis
- max time kernel
148s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
04/07/2024, 01:50
General
- Target a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe
- Size 1018KB
- Sample240704-b9pppazeja
- SHA256 a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e
Malware Config
Extracted
-
remcos
-
RemoteHost
-
107.173.4.16:2560
-
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
true
-
install_flag
false
-
keylog_crypt
true
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-KDW6BI
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
- startup_value
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- Nirsoft 3 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 33 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe"C:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\udDHoOiYEFTRf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\udDHoOiYEFTRf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7280.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe"C:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exeC:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe /stext "C:\Users\Admin\AppData\Local\Temp\yhnsnfmvpan"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exeC:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe /stext "C:\Users\Admin\AppData\Local\Temp\ibacoxxwlifymb"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exeC:\Users\Admin\AppData\Local\Temp\a2d59c9b9dfe1048afea948f5063f485765b429254fc018d6eefdc4be192106e.exe /stext "C:\Users\Admin\AppData\Local\Temp\tvgvppiqzqxdwpahz"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_w4a1tz5b.d1x.ps1
tmp7280.tmp
yhnsnfmvpan
memory/436-5-0x0000000005480000-0x000000000548A000-memory.dmp
memory/436-0-0x000000007534E000-0x000000007534F000-memory.dmp
memory/436-8-0x0000000002B10000-0x0000000002B20000-memory.dmp
memory/436-9-0x000000000D660000-0x000000000D720000-memory.dmp
memory/436-10-0x0000000010E80000-0x0000000010F1C000-memory.dmp
memory/436-125-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/436-1-0x00000000007D0000-0x00000000008D4000-memory.dmp
memory/436-2-0x0000000005890000-0x0000000005E34000-memory.dmp
memory/436-6-0x0000000007B80000-0x0000000007BA2000-memory.dmp
memory/436-4-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/436-7-0x000000000A1F0000-0x000000000A1FC000-memory.dmp
memory/436-3-0x00000000052E0000-0x0000000005372000-memory.dmp
memory/1744-100-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1744-101-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1744-97-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1968-156-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-121-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-45-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-122-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-53-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-132-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-118-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1968-131-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-57-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-59-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-120-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-119-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1968-115-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1968-75-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-139-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-140-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-147-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-148-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1968-155-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2688-72-0x0000000073DE0000-0x0000000073E2C000-memory.dmp
memory/2688-21-0x0000000005AA0000-0x0000000005AC2000-memory.dmp
memory/2688-113-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/2688-46-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/2688-30-0x00000000062C0000-0x0000000006614000-memory.dmp
memory/2688-88-0x0000000007E00000-0x0000000007E96000-memory.dmp
memory/2688-17-0x0000000005B70000-0x0000000006198000-memory.dmp
memory/2688-20-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/2688-102-0x0000000007DB0000-0x0000000007DBE000-memory.dmp
memory/2688-55-0x0000000006870000-0x00000000068BC000-memory.dmp
memory/2688-23-0x0000000006210000-0x0000000006276000-memory.dmp
memory/2688-29-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/2688-22-0x00000000061A0000-0x0000000006206000-memory.dmp
memory/4452-94-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4452-92-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4452-95-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4472-93-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4472-91-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4472-90-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4844-73-0x0000000007370000-0x0000000007413000-memory.dmp
memory/4844-71-0x0000000006700000-0x000000000671E000-memory.dmp
memory/4844-61-0x0000000073DE0000-0x0000000073E2C000-memory.dmp
memory/4844-54-0x0000000006050000-0x000000000606E000-memory.dmp
memory/4844-60-0x0000000007330000-0x0000000007362000-memory.dmp
memory/4844-89-0x0000000007670000-0x0000000007681000-memory.dmp
memory/4844-44-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/4844-85-0x0000000007AC0000-0x000000000813A000-memory.dmp
memory/4844-109-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/4844-105-0x0000000007790000-0x0000000007798000-memory.dmp
memory/4844-104-0x00000000077B0000-0x00000000077CA000-memory.dmp
memory/4844-103-0x00000000076B0000-0x00000000076C4000-memory.dmp
memory/4844-86-0x0000000007470000-0x000000000748A000-memory.dmp
memory/4844-18-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/4844-87-0x00000000074E0000-0x00000000074EA000-memory.dmp
memory/4844-16-0x0000000075340000-0x0000000075AF0000-memory.dmp
memory/4844-15-0x0000000002830000-0x0000000002866000-memory.dmp