Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
16/05/2024, 17:14
General
- Target EBUaVgIGyhAIdkk.exe
- Size 985KB
- Sample240516-vr6d9sfa4s
- SHA256 40a32c20b9e9576ce7f8d4342ad24b9f9aa0805bdc43aa781bc3b2626287d740
Malware Config
Extracted
-
remcos
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RemoteHost
-
alibabaforwader10.ddns.net:60247
-
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-AC7NKA
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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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.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\EBUaVgIGyhAIdkk.exe"C:\Users\Admin\AppData\Local\Temp\EBUaVgIGyhAIdkk.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\EBUaVgIGyhAIdkk.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\YbOWhnO.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\YbOWhnO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB9F9.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\EBUaVgIGyhAIdkk.exe"C:\Users\Admin\AppData\Local\Temp\EBUaVgIGyhAIdkk.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_dxqch0fs.yvx.ps1
tmpB9F9.tmp
memory/2076-4-0x0000000005BE0000-0x0000000005BEA000-memory.dmp
memory/2076-10-0x000000000AFE0000-0x000000000B07C000-memory.dmp
memory/2076-5-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/2076-6-0x0000000008720000-0x0000000008740000-memory.dmp
memory/2076-7-0x0000000006D50000-0x0000000006D60000-memory.dmp
memory/2076-8-0x0000000006D60000-0x0000000006D76000-memory.dmp
memory/2076-9-0x00000000088B0000-0x0000000008970000-memory.dmp
memory/2076-3-0x0000000005A40000-0x0000000005AD2000-memory.dmp
memory/2076-14-0x000000007454E000-0x000000007454F000-memory.dmp
memory/2076-2-0x0000000005F50000-0x00000000064F4000-memory.dmp
memory/2076-17-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/2076-0-0x000000007454E000-0x000000007454F000-memory.dmp
memory/2076-55-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/2076-1-0x0000000000F40000-0x000000000103C000-memory.dmp
memory/3168-88-0x00000000075D0000-0x00000000075EA000-memory.dmp
memory/3168-92-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/3168-24-0x00000000057B0000-0x0000000005816000-memory.dmp
memory/3168-23-0x0000000005050000-0x0000000005072000-memory.dmp
memory/3168-21-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/3168-16-0x00000000025E0000-0x0000000002616000-memory.dmp
memory/3168-38-0x0000000005940000-0x0000000005C94000-memory.dmp
memory/3168-20-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/3168-25-0x00000000058D0000-0x0000000005936000-memory.dmp
memory/3168-18-0x0000000005180000-0x00000000057A8000-memory.dmp
memory/3168-87-0x00000000074D0000-0x00000000074E4000-memory.dmp
memory/3168-85-0x0000000007490000-0x00000000074A1000-memory.dmp
memory/3168-19-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/3168-84-0x0000000007510000-0x00000000075A6000-memory.dmp
memory/3168-71-0x0000000074DD0000-0x0000000074E1C000-memory.dmp
memory/3620-56-0x0000000006330000-0x000000000634E000-memory.dmp
memory/3620-57-0x00000000063D0000-0x000000000641C000-memory.dmp
memory/3620-59-0x0000000074DD0000-0x0000000074E1C000-memory.dmp
memory/3620-69-0x0000000007500000-0x000000000751E000-memory.dmp
memory/3620-58-0x00000000074A0000-0x00000000074D2000-memory.dmp
memory/3620-70-0x0000000007520000-0x00000000075C3000-memory.dmp
memory/3620-26-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/3620-81-0x0000000007C90000-0x000000000830A000-memory.dmp
memory/3620-82-0x0000000007650000-0x000000000766A000-memory.dmp
memory/3620-83-0x00000000076C0000-0x00000000076CA000-memory.dmp
memory/3620-93-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/3620-53-0x0000000074540000-0x0000000074CF0000-memory.dmp
memory/3620-86-0x0000000007880000-0x000000000788E000-memory.dmp
memory/3620-89-0x0000000007970000-0x0000000007978000-memory.dmp
memory/4792-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-104-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-98-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-99-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-46-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-54-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-105-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-111-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-112-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-117-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-118-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-123-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4792-125-0x0000000000400000-0x0000000000482000-memory.dmp