Analysis
- max time kernel
119s - max time network
120s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
22/11/2024, 23:22
General
- Target 528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe
- Size 767KB
- Sample241122-3c151asjgs
- SHA256 528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7
Malware Config
Extracted
-
remcos
-
3.3.0 Pro
-
RemoteHost
-
172.111.153.101:5888
-
audio_folder
MicRecords
-
audio_path
%AppData%
-
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
-
install_path
%AppData%
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
Remcos-5VO1QH
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
Remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
-
take_screenshot_title
notepad;solitaire;
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Remcos family
- 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).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe"C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aVoduRhDdfoqJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA33.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe"C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe"C:\Users\Admin\AppData\Local\Temp\528540ebaa33bfac9cc68bafc4ff08d32f386717f37e66a431a2addcfafb46e7.exe"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/556-24-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-25-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-32-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-31-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-30-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-18-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-27-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-26-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-17-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-20-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-23-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-16-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-21-0x0000000000400000-0x0000000000479000-memory.dmp
memory/556-28-0x0000000000400000-0x0000000000479000-memory.dmp
memory/1376-0-0x00000000749DE000-0x00000000749DF000-memory.dmp
memory/1376-1-0x0000000000830000-0x00000000008F6000-memory.dmp
memory/1376-22-0x00000000749D0000-0x0000000075180000-memory.dmp
memory/1376-10-0x00000000060C0000-0x000000000615C000-memory.dmp
memory/1376-9-0x00000000057F0000-0x000000000588C000-memory.dmp
memory/1376-8-0x00000000749D0000-0x0000000075180000-memory.dmp
memory/1376-7-0x00000000749DE000-0x00000000749DF000-memory.dmp
memory/1376-6-0x00000000054A0000-0x00000000054AE000-memory.dmp
memory/1376-5-0x00000000749D0000-0x0000000075180000-memory.dmp
memory/1376-4-0x00000000052F0000-0x00000000052FA000-memory.dmp
memory/1376-3-0x0000000005330000-0x00000000053C2000-memory.dmp
memory/1376-2-0x00000000058E0000-0x0000000005E84000-memory.dmp