Analysis
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max time kernel
148s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-11-2024 08:00
Static task
static1
Behavioral task
behavioral1
Sample
NEW ORDER- 4788467.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
NEW ORDER- 4788467.exe
Resource
win10v2004-20241007-en
General
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Target
NEW ORDER- 4788467.exe
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Size
908KB
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MD5
1cb86400147c835af58017f0474c5bcc
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SHA1
ac285cb623bf292341068dead954cfed9a1f8c81
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SHA256
c35b10fc350209ec356b48282d85b18d9b9ab5c0167dc88461297906602e3d61
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SHA512
ce74f39d092b13570f9387e5d43ced748dea9557e8887fc072694a2cf448b2c4cf741db3e76d551ebef3511b906ae1cbe0fe670f8968e51d1441982ec73b9b0c
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SSDEEP
24576:Nqho7Y33wd4D5N4UmVFruPkMKXbY31qKblvh:y1Hwd4FN4UoFqjKXboTp5
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
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audio_folder
MicRecords
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audio_path
ApplicationPath
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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-NJK093
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screenshot_crypt
false
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screenshot_flag
true
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
1
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Remcos family
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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.
Processes:
powershell.exepowershell.exepid process 3680 powershell.exe 212 powershell.exe -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
NEW ORDER- 4788467.exeNEW ORDER- 4788467.exeremcos.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation NEW ORDER- 4788467.exe Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation NEW ORDER- 4788467.exe Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation remcos.exe -
Executes dropped EXE 3 IoCs
Processes:
remcos.exeremcos.exeremcos.exepid process 4760 remcos.exe 3300 remcos.exe 512 remcos.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
NEW ORDER- 4788467.exeremcos.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-NJK093 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" NEW ORDER- 4788467.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NJK093 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" NEW ORDER- 4788467.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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 -
Suspicious use of SetThreadContext 2 IoCs
Processes:
NEW ORDER- 4788467.exeremcos.exedescription pid process target process PID 3424 set thread context of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 4760 set thread context of 512 4760 remcos.exe remcos.exe -
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.
Processes:
NEW ORDER- 4788467.exeremcos.exepowershell.exeschtasks.exeremcos.exeNEW ORDER- 4788467.exepowershell.exeschtasks.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language NEW ORDER- 4788467.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 NEW ORDER- 4788467.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.
Processes:
schtasks.exeschtasks.exepid process 4160 schtasks.exe 1596 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
NEW ORDER- 4788467.exepowershell.exeremcos.exepowershell.exepid process 3424 NEW ORDER- 4788467.exe 3424 NEW ORDER- 4788467.exe 3424 NEW ORDER- 4788467.exe 3680 powershell.exe 3680 powershell.exe 4760 remcos.exe 4760 remcos.exe 4760 remcos.exe 4760 remcos.exe 4760 remcos.exe 212 powershell.exe 212 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
NEW ORDER- 4788467.exepowershell.exeremcos.exepowershell.exedescription pid process Token: SeDebugPrivilege 3424 NEW ORDER- 4788467.exe Token: SeDebugPrivilege 3680 powershell.exe Token: SeDebugPrivilege 4760 remcos.exe Token: SeDebugPrivilege 212 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
remcos.exepid process 512 remcos.exe -
Suspicious use of WriteProcessMemory 42 IoCs
Processes:
NEW ORDER- 4788467.exeNEW ORDER- 4788467.exeremcos.exedescription pid process target process PID 3424 wrote to memory of 3680 3424 NEW ORDER- 4788467.exe powershell.exe PID 3424 wrote to memory of 3680 3424 NEW ORDER- 4788467.exe powershell.exe PID 3424 wrote to memory of 3680 3424 NEW ORDER- 4788467.exe powershell.exe PID 3424 wrote to memory of 4160 3424 NEW ORDER- 4788467.exe schtasks.exe PID 3424 wrote to memory of 4160 3424 NEW ORDER- 4788467.exe schtasks.exe PID 3424 wrote to memory of 4160 3424 NEW ORDER- 4788467.exe schtasks.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 3424 wrote to memory of 4268 3424 NEW ORDER- 4788467.exe NEW ORDER- 4788467.exe PID 4268 wrote to memory of 4760 4268 NEW ORDER- 4788467.exe remcos.exe PID 4268 wrote to memory of 4760 4268 NEW ORDER- 4788467.exe remcos.exe PID 4268 wrote to memory of 4760 4268 NEW ORDER- 4788467.exe remcos.exe PID 4760 wrote to memory of 212 4760 remcos.exe powershell.exe PID 4760 wrote to memory of 212 4760 remcos.exe powershell.exe PID 4760 wrote to memory of 212 4760 remcos.exe powershell.exe PID 4760 wrote to memory of 1596 4760 remcos.exe schtasks.exe PID 4760 wrote to memory of 1596 4760 remcos.exe schtasks.exe PID 4760 wrote to memory of 1596 4760 remcos.exe schtasks.exe PID 4760 wrote to memory of 3300 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 3300 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 3300 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe PID 4760 wrote to memory of 512 4760 remcos.exe remcos.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEW ORDER- 4788467.exe"C:\Users\Admin\AppData\Local\Temp\NEW ORDER- 4788467.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
PID:3424 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mWrixkEbVc.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3680
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mWrixkEbVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE6E5.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4160
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C:\Users\Admin\AppData\Local\Temp\NEW ORDER- 4788467.exe"C:\Users\Admin\AppData\Local\Temp\NEW ORDER- 4788467.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4268 -
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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mWrixkEbVc.exe"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:212
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mWrixkEbVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp55BC.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1596
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
PID:3300
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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:512
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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
MD56bf7ab709bc2f4a9397e69a7274cc381
SHA1465891783eb23059741189ea1d5f3f7a6460f6f8
SHA256fec8825e4770dfefd7f0d141d5308841522a8c6be41ae12df9a73cf43d041d29
SHA512f1beaaeb8a0f636e045acc982509f865084d97b73fa6ecf9a5e7a4f555df2a28139534ebd72d12ce2bf17570b65892550d874d8668844c488a63f25fd801cc85
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Filesize
908KB
MD51cb86400147c835af58017f0474c5bcc
SHA1ac285cb623bf292341068dead954cfed9a1f8c81
SHA256c35b10fc350209ec356b48282d85b18d9b9ab5c0167dc88461297906602e3d61
SHA512ce74f39d092b13570f9387e5d43ced748dea9557e8887fc072694a2cf448b2c4cf741db3e76d551ebef3511b906ae1cbe0fe670f8968e51d1441982ec73b9b0c
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5779ee17e576e35228f1c4b267a82f1e4
SHA18b4e539104c351805d7510c6ad8ebddc13af926d
SHA256e0ffd75ef27091ab40205af5526f1136a5805ad75fde8867195a5c23714dbf13
SHA512458cd1992036b62f212c7747a03a9f4a7e2a3507198637bd6dbd71c874ac3fbfd84f19ce9a70bed159317833d4335b22555bf1b6436d5f262fc71e808d345123
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD50fbdf72711941bb705c89e08669a7f3d
SHA144cda8198a162bdd348a3bd047326454cb40fe09
SHA256ec8d02344844947db5b5e4a336418a821ed880ee30bf85a476f040398c55fb51
SHA5127e350ee233c55919c259c4321c17fc5f09538337ab47f26497ce869b4ef156b2d213c5fa9d88d221b262b9821c957849680b9350683f39517b39fa11ed19d940