Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
13/02/2024, 02:42
General
- Target 3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe
- Size 1.0MB
- Sample240213-c66pgadd26
- SHA256 3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b
Malware Config
Extracted
-
remcos
-
P2-bin
-
84.38.132.126:61445
-
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-ANE1CN
-
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.
- Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 25 IoCs
- Detects executables built or packed with MPress PE compressor 18 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 3 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 3 IoCs
- NirSoft MailPassView 3 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.
- 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).
- 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 13 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 36 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe"C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.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\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe"2⤵
- 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\bZurkfs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bZurkfs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D8C.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe"C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exeC:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe /stext "C:\Users\Admin\AppData\Local\Temp\uwspdzixsloblboqfowiysefajfbybqxb"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exeC:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe /stext "C:\Users\Admin\AppData\Local\Temp\hscaekesu"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exeC:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe /stext "C:\Users\Admin\AppData\Local\Temp\eyxhes"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exeC:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe /stext "C:\Users\Admin\AppData\Local\Temp\eyxhes"3⤵
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_yw3g3rly.gaa.ps1
tmp7D8C.tmp
uwspdzixsloblboqfowiysefajfbybqxb
memory/1360-114-0x0000000000400000-0x0000000000457000-memory.dmp
memory/1360-120-0x0000000000400000-0x0000000000457000-memory.dmp
memory/1360-128-0x0000000000400000-0x0000000000457000-memory.dmp
memory/1360-126-0x0000000000400000-0x0000000000457000-memory.dmp
memory/1360-122-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2504-116-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2504-133-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2504-121-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2504-111-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2524-4-0x0000000005830000-0x0000000005840000-memory.dmp
memory/2524-10-0x000000000ABF0000-0x000000000ACB6000-memory.dmp
memory/2524-8-0x000000000AAF0000-0x000000000AAFA000-memory.dmp
memory/2524-2-0x0000000008290000-0x0000000008834000-memory.dmp
memory/2524-50-0x0000000074BB0000-0x0000000075360000-memory.dmp
memory/2524-7-0x0000000008280000-0x0000000008294000-memory.dmp
memory/2524-1-0x0000000000D20000-0x0000000000E2A000-memory.dmp
memory/2524-0-0x0000000074BB0000-0x0000000075360000-memory.dmp
memory/2524-25-0x0000000074BB0000-0x0000000075360000-memory.dmp
memory/2524-3-0x0000000007D80000-0x0000000007E12000-memory.dmp
memory/2524-6-0x000000000A7B0000-0x000000000A84C000-memory.dmp
memory/2524-9-0x000000000AB00000-0x000000000AB0E000-memory.dmp
memory/2524-5-0x0000000007D00000-0x0000000007D0A000-memory.dmp
memory/3188-57-0x0000000005BE0000-0x0000000005C2C000-memory.dmp
memory/3188-108-0x0000000074BB0000-0x0000000075360000-memory.dmp
memory/3188-59-0x0000000006B00000-0x0000000006B32000-memory.dmp
memory/3188-26-0x00000000054F0000-0x0000000005556000-memory.dmp
memory/3188-24-0x0000000005390000-0x00000000053F6000-memory.dmp
memory/3188-54-0x0000000005B30000-0x0000000005B4E000-memory.dmp
memory/3188-21-0x0000000074BB0000-0x0000000075360000-memory.dmp
memory/3188-18-0x0000000002250000-0x0000000002260000-memory.dmp
memory/3188-104-0x00000000071A0000-0x00000000071BA000-memory.dmp
memory/3188-17-0x0000000002250000-0x0000000002260000-memory.dmp
memory/3188-60-0x000000007F560000-0x000000007F570000-memory.dmp
memory/3188-63-0x0000000071370000-0x00000000713BC000-memory.dmp
memory/3188-96-0x0000000007060000-0x0000000007071000-memory.dmp
memory/3188-95-0x00000000070E0000-0x0000000007176000-memory.dmp
memory/3188-92-0x00000000074A0000-0x0000000007B1A000-memory.dmp
memory/4748-73-0x00000000046D0000-0x00000000046E0000-memory.dmp
memory/4748-20-0x00000000046D0000-0x00000000046E0000-memory.dmp
memory/4748-74-0x0000000006BB0000-0x0000000006BCE000-memory.dmp
memory/4748-15-0x0000000004620000-0x0000000004656000-memory.dmp
memory/4748-62-0x000000007F550000-0x000000007F560000-memory.dmp
memory/4748-86-0x0000000006BE0000-0x0000000006C83000-memory.dmp
memory/4748-16-0x0000000074BB0000-0x0000000075360000-memory.dmp
memory/4748-19-0x0000000004D10000-0x0000000005338000-memory.dmp
memory/4748-85-0x00000000046D0000-0x00000000046E0000-memory.dmp
memory/4748-93-0x0000000006F20000-0x0000000006F3A000-memory.dmp
memory/4748-94-0x0000000006F90000-0x0000000006F9A000-memory.dmp
memory/4748-109-0x0000000074BB0000-0x0000000075360000-memory.dmp
memory/4748-61-0x0000000071370000-0x00000000713BC000-memory.dmp
memory/4748-23-0x0000000004B50000-0x0000000004B72000-memory.dmp
memory/4748-43-0x0000000005620000-0x0000000005974000-memory.dmp
memory/4748-101-0x0000000007150000-0x000000000715E000-memory.dmp
memory/4748-102-0x0000000007160000-0x0000000007174000-memory.dmp
memory/4748-103-0x0000000007260000-0x000000000727A000-memory.dmp
memory/4748-105-0x0000000007240000-0x0000000007248000-memory.dmp
memory/4884-127-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4884-117-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4884-130-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4884-131-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5020-98-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-142-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-55-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-100-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-89-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-75-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-91-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-139-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-140-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-141-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-138-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-135-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-87-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-144-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-146-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-147-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-90-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-154-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-155-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-162-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-163-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-170-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-171-0x0000000000400000-0x0000000000482000-memory.dmp