Analysis
- max time kernel
149s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
03/05/2024, 13:00
General
- Target fatura.exe
- Size 977KB
- Sample240503-p8m2csba38
- SHA256 6703df15130444806d68473d071445cfe26efb0570f06df656711a74d18264f6
Malware Config
Extracted
-
remcos
-
RemoteHost
-
sembe.duckdns.org:14645
-
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
nots.dat
-
keylog_flag
false
-
keylog_folder
note
-
keylog_path
%Temp%
-
mouse_option
false
-
mutex
Rmc-999Z97
-
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.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\fatura.exe"C:\Users\Admin\AppData\Local\Temp\fatura.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\Roaming\KGuxmqSTXgJca.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\KGuxmqSTXgJca" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6D31.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\fatura.exe"C:\Users\Admin\AppData\Local\Temp\fatura.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_4g5gqggl.vch.ps1
nots.dat
tmp6D31.tmp
memory/224-6-0x0000000074AF0000-0x00000000752A0000-memory.dmp
memory/224-4-0x00000000050F0000-0x00000000050FA000-memory.dmp
memory/224-5-0x00000000053D0000-0x000000000546C000-memory.dmp
memory/224-27-0x0000000074AF0000-0x00000000752A0000-memory.dmp
memory/224-7-0x0000000005290000-0x00000000052A6000-memory.dmp
memory/224-8-0x00000000052C0000-0x00000000052D6000-memory.dmp
memory/224-9-0x00000000068C0000-0x0000000006980000-memory.dmp
memory/224-3-0x0000000005160000-0x00000000051F2000-memory.dmp
memory/224-2-0x0000000005710000-0x0000000005CB4000-memory.dmp
memory/224-0-0x0000000074AFE000-0x0000000074AFF000-memory.dmp
memory/224-1-0x0000000000600000-0x00000000006F4000-memory.dmp
memory/1084-44-0x0000000006050000-0x000000000609C000-memory.dmp
memory/1084-59-0x00000000072E0000-0x00000000072FA000-memory.dmp
memory/1084-24-0x0000000005930000-0x0000000005996000-memory.dmp
memory/1084-14-0x0000000002680000-0x00000000026B6000-memory.dmp
memory/1084-18-0x0000000074AF0000-0x00000000752A0000-memory.dmp
memory/1084-17-0x0000000005220000-0x0000000005848000-memory.dmp
memory/1084-69-0x0000000074AF0000-0x00000000752A0000-memory.dmp
memory/1084-66-0x0000000007600000-0x0000000007608000-memory.dmp
memory/1084-65-0x0000000007620000-0x000000000763A000-memory.dmp
memory/1084-64-0x0000000007520000-0x0000000007534000-memory.dmp
memory/1084-21-0x0000000074AF0000-0x00000000752A0000-memory.dmp
memory/1084-42-0x0000000005C40000-0x0000000005F94000-memory.dmp
memory/1084-22-0x0000000005170000-0x0000000005192000-memory.dmp
memory/1084-63-0x0000000007510000-0x000000000751E000-memory.dmp
memory/1084-43-0x0000000005FD0000-0x0000000005FEE000-memory.dmp
memory/1084-15-0x0000000074AF0000-0x00000000752A0000-memory.dmp
memory/1084-45-0x0000000007170000-0x00000000071A2000-memory.dmp
memory/1084-46-0x00000000712E0000-0x000000007132C000-memory.dmp
memory/1084-56-0x0000000006570000-0x000000000658E000-memory.dmp
memory/1084-57-0x00000000071B0000-0x0000000007253000-memory.dmp
memory/1084-58-0x0000000007930000-0x0000000007FAA000-memory.dmp
memory/1084-23-0x00000000058C0000-0x0000000005926000-memory.dmp
memory/1084-60-0x0000000007350000-0x000000000735A000-memory.dmp
memory/1084-61-0x0000000007560000-0x00000000075F6000-memory.dmp
memory/1084-62-0x00000000074E0000-0x00000000074F1000-memory.dmp
memory/2432-74-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-81-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-70-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-73-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-72-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-29-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-83-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-84-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-91-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-92-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-99-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-100-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-108-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2432-107-0x0000000000400000-0x0000000000482000-memory.dmp