Analysis
- max time kernel
149s - max time network
151s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
- submitted
13/02/2024, 03:00
General
- Target 3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe
- Size 1.0MB
- Sample240213-dhsndade5t
- 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) 51 IoCs
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 25 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe"C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe"C:\Users\Admin\AppData\Local\Temp\3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bZurkfs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp42DA.tmp"2⤵
- Creates scheduled task(s)
-
-
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\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
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
tmp42DA.tmp
HTBT537ZULEANAC0OZPN.temp
memory/1700-48-0x00000000748A0000-0x0000000074F8E000-memory.dmp
memory/1700-0-0x0000000001020000-0x000000000112A000-memory.dmp
memory/1700-2-0x0000000007160000-0x00000000071A0000-memory.dmp
memory/1700-3-0x0000000000600000-0x0000000000614000-memory.dmp
memory/1700-5-0x0000000000A90000-0x0000000000A9E000-memory.dmp
memory/1700-4-0x0000000000860000-0x000000000086A000-memory.dmp
memory/1700-6-0x0000000008010000-0x00000000080D6000-memory.dmp
memory/1700-1-0x00000000748A0000-0x0000000074F8E000-memory.dmp
memory/2644-57-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-65-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-103-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-100-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-99-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-50-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-98-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-96-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-46-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-42-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2644-40-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-95-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-94-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-29-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-93-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-55-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-92-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-60-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-61-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-62-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-63-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-90-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-66-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-67-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-68-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-69-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-71-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-72-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-73-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-74-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-76-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-77-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-78-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-79-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-80-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-82-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-83-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-84-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-85-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-87-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-88-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2644-89-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2704-21-0x000000006E370000-0x000000006E91B000-memory.dmp
memory/2704-26-0x00000000029C0000-0x0000000002A00000-memory.dmp
memory/2704-53-0x000000006E370000-0x000000006E91B000-memory.dmp
memory/2704-35-0x00000000029C0000-0x0000000002A00000-memory.dmp
memory/2704-31-0x00000000029C0000-0x0000000002A00000-memory.dmp
memory/2704-30-0x000000006E370000-0x000000006E91B000-memory.dmp
memory/2836-28-0x000000006E370000-0x000000006E91B000-memory.dmp
memory/2836-33-0x0000000002D30000-0x0000000002D70000-memory.dmp
memory/2836-38-0x0000000002D30000-0x0000000002D70000-memory.dmp
memory/2836-54-0x000000006E370000-0x000000006E91B000-memory.dmp
memory/2836-24-0x000000006E370000-0x000000006E91B000-memory.dmp