Analysis
-
max time kernel
149s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
28-11-2024 03:46
Static task
static1
Behavioral task
behavioral1
Sample
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe
Resource
win10v2004-20241007-en
General
-
Target
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe
-
Size
1.1MB
-
MD5
7d78937ebc3648958437741df13eec52
-
SHA1
9b30169d5adb06c082d6b9e297368faad45725f5
-
SHA256
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a
-
SHA512
7e1acb40093bdb9a23d598a5766011409e6ef88b329c69eec3b32ea6873817e09b41e70383ae5eed3752283087db35ede2f28bf291c49df14fbeaf5b98decba4
-
SSDEEP
24576:PYoOciJwQYaoRuivChV3DSwctuoqBMY9zVZEueHTf:PsbwQIRssqBMWVZEu
Malware Config
Extracted
remcos
RemoteHost
206.189.218.238:4782
206.189.218.238:2286
206.189.218.238:3363
206.189.218.238:3386
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
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
true
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-NJK093
-
screenshot_crypt
false
-
screenshot_flag
true
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
1
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Remcos family
-
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepid Process 2728 powershell.exe 2420 powershell.exe -
Executes dropped EXE 2 IoCs
Processes:
remcos.exeremcos.exepid Process 2608 remcos.exe 2028 remcos.exe -
Loads dropped DLL 1 IoCs
Processes:
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exepid Process 524 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exeremcos.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NJK093 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-NJK093 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" remcos.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NJK093 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" remcos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-NJK093 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exeremcos.exedescription pid Process procid_target PID 2224 set thread context of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2608 set thread context of 2028 2608 remcos.exe 41 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
schtasks.exeremcos.exeed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exepowershell.exeschtasks.exeed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exeremcos.exepowershell.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 2804 schtasks.exe 2352 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exepowershell.exeremcos.exepowershell.exepid Process 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 2728 powershell.exe 2608 remcos.exe 2608 remcos.exe 2608 remcos.exe 2420 powershell.exe 2608 remcos.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exepowershell.exeremcos.exepowershell.exedescription pid Process Token: SeDebugPrivilege 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe Token: SeDebugPrivilege 2728 powershell.exe Token: SeDebugPrivilege 2608 remcos.exe Token: SeDebugPrivilege 2420 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
remcos.exepid Process 2028 remcos.exe -
Suspicious use of WriteProcessMemory 46 IoCs
Processes:
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exeed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exeremcos.exedescription pid Process procid_target PID 2224 wrote to memory of 2728 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 31 PID 2224 wrote to memory of 2728 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 31 PID 2224 wrote to memory of 2728 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 31 PID 2224 wrote to memory of 2728 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 31 PID 2224 wrote to memory of 2804 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 32 PID 2224 wrote to memory of 2804 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 32 PID 2224 wrote to memory of 2804 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 32 PID 2224 wrote to memory of 2804 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 32 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 2224 wrote to memory of 524 2224 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 35 PID 524 wrote to memory of 2608 524 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 36 PID 524 wrote to memory of 2608 524 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 36 PID 524 wrote to memory of 2608 524 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 36 PID 524 wrote to memory of 2608 524 ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe 36 PID 2608 wrote to memory of 2420 2608 remcos.exe 37 PID 2608 wrote to memory of 2420 2608 remcos.exe 37 PID 2608 wrote to memory of 2420 2608 remcos.exe 37 PID 2608 wrote to memory of 2420 2608 remcos.exe 37 PID 2608 wrote to memory of 2352 2608 remcos.exe 39 PID 2608 wrote to memory of 2352 2608 remcos.exe 39 PID 2608 wrote to memory of 2352 2608 remcos.exe 39 PID 2608 wrote to memory of 2352 2608 remcos.exe 39 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41 PID 2608 wrote to memory of 2028 2608 remcos.exe 41
Processes
-
C:\Users\Admin\AppData\Local\Temp\ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe"C:\Users\Admin\AppData\Local\Temp\ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2224 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QgjhVvUyb.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2728
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QgjhVvUyb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpED0.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2804
-
-
C:\Users\Admin\AppData\Local\Temp\ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe"C:\Users\Admin\AppData\Local\Temp\ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a.exe"2⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:524 -
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2608 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QgjhVvUyb.exe"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2420
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QgjhVvUyb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5D7B.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2352
-
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2028
-
-
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
144B
MD58d92bf71d8ec7c562aa98912a64cc9f2
SHA1231f14aa59023eb444393fc0c1ef41324fc940cb
SHA256fc10c9ea61d715c2d0ed0b06283736c6f6a31e9bd9776281c2dc8d21767d3013
SHA51236213888bc408463819d28bfc55509ddb16b1b03762215547ea42c95f242866cdad9685b6eae4587782eef952408d08eafa056c85f0fdfc79c23897e0e7b8ed0
-
Filesize
1.1MB
MD57d78937ebc3648958437741df13eec52
SHA19b30169d5adb06c082d6b9e297368faad45725f5
SHA256ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a
SHA5127e1acb40093bdb9a23d598a5766011409e6ef88b329c69eec3b32ea6873817e09b41e70383ae5eed3752283087db35ede2f28bf291c49df14fbeaf5b98decba4
-
Filesize
1KB
MD59cc202108401862af5649d422ee9f33e
SHA1b2af3aff94e34e6a3b3fe652e41fcc718f08959f
SHA25622e9f3cb687581e2b8392df052be6d6f328a972f12c21a3b3313061c9b0ffa1e
SHA512fe3b82fd73b1977b2215ad6f26d7ae5a230af492065f034c72a36dfbee372c2eec65770c331a99c234ad2279a6737bac30377669e18b91e20dcc6997ba73d43c
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD543d41411fcede7158fa4e9f4ec567775
SHA1fc232086a19e0c5e7cca021ae30141a34f47c9ff
SHA256ebebc571d68447a0c329c4b5a8be576684df97b6050efc89288aff3f735ba098
SHA51292df2825c46de3b2a2449a5a2cd1d5b44370c2f393f8181d2d1280b0a34acd216ace5976ea39a873ee941f8487f6014e7225752c41200e773e401cc17f12a185