Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
27-09-2024 22:24
Static task
static1
Behavioral task
behavioral1
Sample
68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe
Resource
win7-20240903-en
General
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Target
68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe
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Size
881KB
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MD5
7afd5be4b77090388ddecb8169cf0bc3
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SHA1
d3b6ba2e53aed1471c12196c577b7be56d14cf2f
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SHA256
68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036
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SHA512
2f16fce3f75bce88c79286f41010d76691fe0fab37c4fad814867b819c60c81fe4dff17ad722952cc6c7a7d99aaec75d51d2fd16350babb8d3388e11d2236a06
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SSDEEP
24576:VE8AE9lxicGLP0CDyB/1FNlUcDos713jb:VExsxiTVe1F/UcDosVb
Malware Config
Extracted
remcos
IRN
irnserv1.ddns.net:4424
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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-CA8761
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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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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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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.
pid Process 3740 powershell.exe 2252 powershell.exe -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation remcos.exe Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe -
Executes dropped EXE 2 IoCs
pid Process 4420 remcos.exe 3616 remcos.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-CA8761 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-CA8761 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe Set value (str) \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-CA8761 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" remcos.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-CA8761 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" remcos.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1404 set thread context of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 4420 set thread context of 3616 4420 remcos.exe 99 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.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 remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3124 schtasks.exe 1480 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3740 powershell.exe 3740 powershell.exe 2252 powershell.exe 2252 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3740 powershell.exe Token: SeDebugPrivilege 2252 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3616 remcos.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 1404 wrote to memory of 3740 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 86 PID 1404 wrote to memory of 3740 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 86 PID 1404 wrote to memory of 3740 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 86 PID 1404 wrote to memory of 3124 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 88 PID 1404 wrote to memory of 3124 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 88 PID 1404 wrote to memory of 3124 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 88 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 1404 wrote to memory of 3356 1404 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 90 PID 3356 wrote to memory of 4420 3356 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 91 PID 3356 wrote to memory of 4420 3356 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 91 PID 3356 wrote to memory of 4420 3356 68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe 91 PID 4420 wrote to memory of 2252 4420 remcos.exe 95 PID 4420 wrote to memory of 2252 4420 remcos.exe 95 PID 4420 wrote to memory of 2252 4420 remcos.exe 95 PID 4420 wrote to memory of 1480 4420 remcos.exe 97 PID 4420 wrote to memory of 1480 4420 remcos.exe 97 PID 4420 wrote to memory of 1480 4420 remcos.exe 97 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99 PID 4420 wrote to memory of 3616 4420 remcos.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe"C:\Users\Admin\AppData\Local\Temp\68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GLFzLcBn.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3740
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GLFzLcBn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEDEA.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3124
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C:\Users\Admin\AppData\Local\Temp\68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe"C:\Users\Admin\AppData\Local\Temp\68a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3356 -
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4420 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GLFzLcBn.exe"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2252
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GLFzLcBn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp27C7.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1480
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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:3616
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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
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Downloads
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Filesize
144B
MD576dda4d274eabfa9bd1327f06f729125
SHA1569446050c373ad435e1a4e0950c2cb67c040ff1
SHA2565f458522a1f44a46fe88426600823ae61f2cc0ef75052f1796470c13a9d46a79
SHA5125f1ba2d6e9f8668f731024a692243f846d3ed3ff4277f1ba754f1ba106edd3171df32366143ff39d26cdeaaafa1f828faa92a19149f683cb59ef20bc49c9a96b
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Filesize
881KB
MD57afd5be4b77090388ddecb8169cf0bc3
SHA1d3b6ba2e53aed1471c12196c577b7be56d14cf2f
SHA25668a4b0d743c427d59d076376e5c3a131ee7ab29cdc959b8872735c06b70b7036
SHA5122f16fce3f75bce88c79286f41010d76691fe0fab37c4fad814867b819c60c81fe4dff17ad722952cc6c7a7d99aaec75d51d2fd16350babb8d3388e11d2236a06
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5ca4ac8f09b15e04ced69891bc205818b
SHA17dd3545b37d88ce85fb6ed858ae97065c62243fd
SHA25663837b073477cf098c1ffb56136a5a4f30c8ecef9ca3016d165c7eac91d98306
SHA512804b2da03c86e48e5e3d9b182c7fffe55a4b719245c1354ce1e158caf3fbdddef243d80d412c95cf70acb0f4fb5d645a536bf0bd7ac9af58e8ad6fd08dca21a7
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5f144ee6238f7890a5170a059bc27222e
SHA131a21e04e5b55fb898df07226ce4f2667c7cd876
SHA256ba60a13244c125e9dd2a27207f757d3ce40ca054866c801d0d8cbcd7e532a31f
SHA5122a0fdae6a4e0054e07d95103077bb706c71211d6e534032531f9f0640bfa2d32b303b1e647a5cc20c8e9b0922c92c82e11af099c2ca10aecd715f61506d8f0c9