Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
27/11/2024, 16:31
Static task
static1
Behavioral task
behavioral1
Sample
RFQ-00948-STELLION-878378.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
RFQ-00948-STELLION-878378.exe
Resource
win10v2004-20241007-en
General
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Target
RFQ-00948-STELLION-878378.exe
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Size
1.1MB
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MD5
7d78937ebc3648958437741df13eec52
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SHA1
9b30169d5adb06c082d6b9e297368faad45725f5
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SHA256
ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a
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SHA512
7e1acb40093bdb9a23d598a5766011409e6ef88b329c69eec3b32ea6873817e09b41e70383ae5eed3752283087db35ede2f28bf291c49df14fbeaf5b98decba4
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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
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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.
pid Process 4280 powershell.exe 4988 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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation RFQ-00948-STELLION-878378.exe Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation RFQ-00948-STELLION-878378.exe Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation remcos.exe -
Executes dropped EXE 2 IoCs
pid Process 1580 remcos.exe 2864 remcos.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-NJK093 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" RFQ-00948-STELLION-878378.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NJK093 = "\"C:\\ProgramData\\Remcos\\remcos.exe\"" RFQ-00948-STELLION-878378.exe Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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
description pid Process procid_target PID 2908 set thread context of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 1580 set thread context of 2864 1580 remcos.exe 103 -
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 remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RFQ-00948-STELLION-878378.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 RFQ-00948-STELLION-878378.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 -
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 4488 schtasks.exe 792 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 2908 RFQ-00948-STELLION-878378.exe 2908 RFQ-00948-STELLION-878378.exe 2908 RFQ-00948-STELLION-878378.exe 2908 RFQ-00948-STELLION-878378.exe 4280 powershell.exe 4280 powershell.exe 1580 remcos.exe 1580 remcos.exe 1580 remcos.exe 4988 powershell.exe 1580 remcos.exe 4988 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2908 RFQ-00948-STELLION-878378.exe Token: SeDebugPrivilege 4280 powershell.exe Token: SeDebugPrivilege 1580 remcos.exe Token: SeDebugPrivilege 4988 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2864 remcos.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 2908 wrote to memory of 4280 2908 RFQ-00948-STELLION-878378.exe 91 PID 2908 wrote to memory of 4280 2908 RFQ-00948-STELLION-878378.exe 91 PID 2908 wrote to memory of 4280 2908 RFQ-00948-STELLION-878378.exe 91 PID 2908 wrote to memory of 4488 2908 RFQ-00948-STELLION-878378.exe 93 PID 2908 wrote to memory of 4488 2908 RFQ-00948-STELLION-878378.exe 93 PID 2908 wrote to memory of 4488 2908 RFQ-00948-STELLION-878378.exe 93 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 2908 wrote to memory of 5004 2908 RFQ-00948-STELLION-878378.exe 95 PID 5004 wrote to memory of 1580 5004 RFQ-00948-STELLION-878378.exe 96 PID 5004 wrote to memory of 1580 5004 RFQ-00948-STELLION-878378.exe 96 PID 5004 wrote to memory of 1580 5004 RFQ-00948-STELLION-878378.exe 96 PID 1580 wrote to memory of 4988 1580 remcos.exe 99 PID 1580 wrote to memory of 4988 1580 remcos.exe 99 PID 1580 wrote to memory of 4988 1580 remcos.exe 99 PID 1580 wrote to memory of 792 1580 remcos.exe 101 PID 1580 wrote to memory of 792 1580 remcos.exe 101 PID 1580 wrote to memory of 792 1580 remcos.exe 101 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103 PID 1580 wrote to memory of 2864 1580 remcos.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ-00948-STELLION-878378.exe"C:\Users\Admin\AppData\Local\Temp\RFQ-00948-STELLION-878378.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:2908 -
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:4280
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QgjhVvUyb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF472.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4488
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C:\Users\Admin\AppData\Local\Temp\RFQ-00948-STELLION-878378.exe"C:\Users\Admin\AppData\Local\Temp\RFQ-00948-STELLION-878378.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004 -
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:1580 -
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:4988
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QgjhVvUyb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp47D2.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:792
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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:2864
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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
Loading Replay Monitor...
Downloads
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Filesize
144B
MD5ecc60cea1b73360426ab183da0b174d1
SHA132a1e02f776ca7a1fdcdfa24e27ee81838d93b5e
SHA2563555f7578d6e13bfc5e6e2f460590f3a876d328e29fbb0d7b031247f780c247a
SHA512da9741f10edbb2e668d72cf46a0004b2d918910cb4894c035abb563f2e6f38605387fe9164187a7fc74798d1cf0771fc9a4aaa5cad8418c6f7d113a81cb77a6e
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Filesize
1.1MB
MD57d78937ebc3648958437741df13eec52
SHA19b30169d5adb06c082d6b9e297368faad45725f5
SHA256ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a
SHA5127e1acb40093bdb9a23d598a5766011409e6ef88b329c69eec3b32ea6873817e09b41e70383ae5eed3752283087db35ede2f28bf291c49df14fbeaf5b98decba4
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5f2d5c636bafad97963c0fdde73379d33
SHA1ef46f734a620e88d6e0b3e1f60aa0e1539f20174
SHA256d1943ccea1a358555cc932a7aad3a5e487e978d321542b08d691da28adec1cca
SHA5124b6a6c7e7a58ea40dc58987cc3fd70a2d73288226be4040740254cd5f55eb3b14ce0084f938378bf5c5fc3ff95d1cd6eff1a7c923b20de8c9013c1bf51635514
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD59a7f061c4dbbacf36993286d0bde0426
SHA19155be5f7008cfb71df3d14d35d593ec7ef01f16
SHA256b65d3b15129d23b296043379f323f572154e4a6b682609eb6c97e715073de622
SHA512469d5fe7d600913eaa04e7e104db81681097b85467c4a88cbe9ecfe7c2a681565cede8a01916ef632b3cac3c96d35f49cb5d1d65f1d9a31be8a3db224d90561d