Analysis
- max time kernel
152s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
02/12/2022, 00:54
General
- Target 7c12a559879bfc04c688fa00f83c7c89.exe
- Size 942KB
- Sample221202-a8869sge87
- SHA256 b5a1e827d96b4c4df1aad8363fe6bd7b4a83ace3f6e15b9689a0f2ddf74c8fb8
Malware Config
Extracted
-
remcos
-
FIRST
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onyem.myftp.org:3527
-
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
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keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-F43DZB
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
-
startup_value
Remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\7c12a559879bfc04c688fa00f83c7c89.exe"C:\Users\Admin\AppData\Local\Temp\7c12a559879bfc04c688fa00f83c7c89.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\Roaming\ePnxkugSsfE.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ePnxkugSsfE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp76C6.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\7c12a559879bfc04c688fa00f83c7c89.exe"C:\Users\Admin\AppData\Local\Temp\7c12a559879bfc04c688fa00f83c7c89.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp76C6.tmp
memory/1632-153-0x0000000070F00000-0x0000000070F4C000-memory.dmp
memory/1632-149-0x0000000005760000-0x00000000057C6000-memory.dmp
memory/1632-162-0x0000000007600000-0x0000000007608000-memory.dmp
memory/1632-161-0x0000000007620000-0x000000000763A000-memory.dmp
memory/1632-160-0x0000000007510000-0x000000000751E000-memory.dmp
memory/1632-139-0x00000000049B0000-0x00000000049E6000-memory.dmp
memory/1632-159-0x0000000007560000-0x00000000075F6000-memory.dmp
memory/1632-143-0x0000000005130000-0x0000000005758000-memory.dmp
memory/1632-158-0x0000000007350000-0x000000000735A000-memory.dmp
memory/1632-157-0x00000000072E0000-0x00000000072FA000-memory.dmp
memory/1632-156-0x0000000007920000-0x0000000007F9A000-memory.dmp
memory/1632-147-0x0000000004F60000-0x0000000004F82000-memory.dmp
memory/1632-154-0x0000000006590000-0x00000000065AE000-memory.dmp
memory/1632-152-0x0000000006F90000-0x0000000006FC2000-memory.dmp
memory/1632-151-0x0000000005F40000-0x0000000005F5E000-memory.dmp
memory/1632-150-0x0000000005840000-0x00000000058A6000-memory.dmp
memory/2340-133-0x0000000005DE0000-0x0000000006384000-memory.dmp
memory/2340-132-0x0000000000CE0000-0x0000000000DD0000-memory.dmp
memory/2340-134-0x0000000005830000-0x00000000058C2000-memory.dmp
memory/2340-136-0x00000000083A0000-0x000000000843C000-memory.dmp
memory/2340-135-0x0000000005900000-0x000000000590A000-memory.dmp
memory/3732-148-0x0000000000400000-0x0000000000487000-memory.dmp
memory/3732-146-0x0000000000400000-0x0000000000487000-memory.dmp
memory/3732-142-0x0000000000400000-0x0000000000487000-memory.dmp
memory/3732-155-0x0000000000400000-0x0000000000487000-memory.dmp
memory/3732-145-0x0000000000400000-0x0000000000487000-memory.dmp
memory/3732-144-0x0000000000400000-0x0000000000487000-memory.dmp