Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2022 09:41
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
Resource
win10v2004-20220901-en
General
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Target
SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
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Size
1.4MB
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MD5
c608a1b47c4bf0891be778c247b1ded4
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SHA1
1c96c2f12a60ea9d72d1f92e63a8ac5669793cc8
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SHA256
86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd
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SHA512
805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff
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SSDEEP
24576:Cr74qlKPw+mfS5+CCGXuGP4s+c1SB9TOpTkykfdvfMA0lMTCh:m74UJasCpgHccnS4rfRf+w
Malware Config
Extracted
remcos
RemoteHost
drremcoz1.ddns.net:1307
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
true
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-51BI37
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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startup_value
Remcos
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Executes dropped EXE 2 IoCs
Processes:
remcos.exeremcos.exepid process 2864 remcos.exe 1420 remcos.exe -
Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
remcos.exeSecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeSecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeWScript.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation remcos.exe Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation WScript.exe -
Adds Run key to start application 2 TTPs 8 IoCs
Processes:
remcos.exeSecuriteInfo.com.Win32.PWSX-gen.4830.29679.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" remcos.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ remcos.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" remcos.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ remcos.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeremcos.exedescription pid process target process PID 3436 set thread context of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 2864 set thread context of 1420 2864 remcos.exe remcos.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 3964 schtasks.exe 2340 schtasks.exe -
Modifies registry class 1 IoCs
Processes:
SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
remcos.exepid process 1420 remcos.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeSecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeWScript.execmd.exeremcos.exedescription pid process target process PID 3436 wrote to memory of 3964 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe schtasks.exe PID 3436 wrote to memory of 3964 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe schtasks.exe PID 3436 wrote to memory of 3964 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe schtasks.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 3436 wrote to memory of 392 3436 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe PID 392 wrote to memory of 1064 392 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe WScript.exe PID 392 wrote to memory of 1064 392 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe WScript.exe PID 392 wrote to memory of 1064 392 SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe WScript.exe PID 1064 wrote to memory of 3956 1064 WScript.exe cmd.exe PID 1064 wrote to memory of 3956 1064 WScript.exe cmd.exe PID 1064 wrote to memory of 3956 1064 WScript.exe cmd.exe PID 3956 wrote to memory of 2864 3956 cmd.exe remcos.exe PID 3956 wrote to memory of 2864 3956 cmd.exe remcos.exe PID 3956 wrote to memory of 2864 3956 cmd.exe remcos.exe PID 2864 wrote to memory of 2340 2864 remcos.exe schtasks.exe PID 2864 wrote to memory of 2340 2864 remcos.exe schtasks.exe PID 2864 wrote to memory of 2340 2864 remcos.exe schtasks.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe PID 2864 wrote to memory of 1420 2864 remcos.exe remcos.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ioRUiODpW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3F5B.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe"{path}"2⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\ProgramData\Remcos\remcos.exe"4⤵
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Remcos\remcos.exeC:\ProgramData\Remcos\remcos.exe5⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ioRUiODpW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB8C1.tmp"6⤵
- Creates scheduled task(s)
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C:\ProgramData\Remcos\remcos.exe"{path}"6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\Remcos\remcos.exeFilesize
1.4MB
MD5c608a1b47c4bf0891be778c247b1ded4
SHA11c96c2f12a60ea9d72d1f92e63a8ac5669793cc8
SHA25686e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd
SHA512805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff
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C:\ProgramData\Remcos\remcos.exeFilesize
1.4MB
MD5c608a1b47c4bf0891be778c247b1ded4
SHA11c96c2f12a60ea9d72d1f92e63a8ac5669793cc8
SHA25686e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd
SHA512805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff
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C:\ProgramData\Remcos\remcos.exeFilesize
1.4MB
MD5c608a1b47c4bf0891be778c247b1ded4
SHA11c96c2f12a60ea9d72d1f92e63a8ac5669793cc8
SHA25686e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd
SHA512805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff
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C:\Users\Admin\AppData\Local\Temp\install.vbsFilesize
386B
MD51ec6289c6fd4c2ded6b2836ed28cbeb5
SHA1c4e08195e6c640eb8860acc03fda1d649b4fe070
SHA2566efdc40f9eb217f879607614e928b65bff759e424f3efb31faceb2a043c32dc2
SHA51220bc46f4dee22f75f15c402c7c2eaee60fff7dd92548050585571dcbefd59485cc249c06bc3f1aac7a138e5ae67c0c3918b46ffa24c8b0f1b092e2f6b6e21288
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C:\Users\Admin\AppData\Local\Temp\tmp3F5B.tmpFilesize
1KB
MD5943bbd7867e0ecd76144f90f35ead36e
SHA13c3957e2c476b5f213bfd8ad53beebd489f0526f
SHA2563548e65736849a64363c956673880e8ef50c9c3de7aaa4a8e335401f6bc76eeb
SHA512f234af553be2c32332e8de7cfbc92d5807b05947da6f26c7d26d861559e4e9f01573ef6d2da77625eb15c88326cca9a808ceca9df73f8f3ec7268a588ce17b6c
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C:\Users\Admin\AppData\Local\Temp\tmpB8C1.tmpFilesize
1KB
MD5943bbd7867e0ecd76144f90f35ead36e
SHA13c3957e2c476b5f213bfd8ad53beebd489f0526f
SHA2563548e65736849a64363c956673880e8ef50c9c3de7aaa4a8e335401f6bc76eeb
SHA512f234af553be2c32332e8de7cfbc92d5807b05947da6f26c7d26d861559e4e9f01573ef6d2da77625eb15c88326cca9a808ceca9df73f8f3ec7268a588ce17b6c
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memory/392-144-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/392-140-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/392-141-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/392-142-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/392-139-0x0000000000000000-mapping.dmp
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memory/1064-143-0x0000000000000000-mapping.dmp
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memory/1420-158-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/1420-157-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/1420-156-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/1420-155-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/1420-152-0x0000000000000000-mapping.dmp
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memory/2340-150-0x0000000000000000-mapping.dmp
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memory/2864-147-0x0000000000000000-mapping.dmp
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memory/3436-134-0x0000000004C70000-0x0000000004D02000-memory.dmpFilesize
584KB
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memory/3436-135-0x0000000004D10000-0x0000000004DAC000-memory.dmpFilesize
624KB
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memory/3436-133-0x0000000005220000-0x00000000057C4000-memory.dmpFilesize
5.6MB
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memory/3436-136-0x0000000004BF0000-0x0000000004BFA000-memory.dmpFilesize
40KB
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memory/3436-132-0x00000000000F0000-0x0000000000254000-memory.dmpFilesize
1.4MB
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memory/3956-146-0x0000000000000000-mapping.dmp
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memory/3964-137-0x0000000000000000-mapping.dmp