Analysis
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max time kernel
118s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
01-12-2024 15:39
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.
Processes:
powershell.exepowershell.exepid Process 1328 powershell.exe 452 powershell.exe -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
RFQ-00948-STELLION-878378.exeRFQ-00948-STELLION-878378.exeremcos.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation RFQ-00948-STELLION-878378.exe Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation RFQ-00948-STELLION-878378.exe Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation remcos.exe -
Executes dropped EXE 3 IoCs
Processes:
remcos.exeremcos.exeremcos.exepid Process 1088 remcos.exe 3256 remcos.exe 2796 remcos.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
RFQ-00948-STELLION-878378.exeremcos.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\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-1-5-21-1045960512-3948844814-3059691613-1000\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:
RFQ-00948-STELLION-878378.exeremcos.exedescription pid Process procid_target PID 1848 set thread context of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1088 set thread context of 2796 1088 remcos.exe 112 -
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:
schtasks.exeremcos.exeRFQ-00948-STELLION-878378.exepowershell.exeschtasks.exeRFQ-00948-STELLION-878378.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 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 -
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 3260 schtasks.exe 3832 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 18 IoCs
Processes:
RFQ-00948-STELLION-878378.exepowershell.exeremcos.exepowershell.exepid Process 1848 RFQ-00948-STELLION-878378.exe 1848 RFQ-00948-STELLION-878378.exe 1848 RFQ-00948-STELLION-878378.exe 452 powershell.exe 1848 RFQ-00948-STELLION-878378.exe 1848 RFQ-00948-STELLION-878378.exe 1848 RFQ-00948-STELLION-878378.exe 1848 RFQ-00948-STELLION-878378.exe 1848 RFQ-00948-STELLION-878378.exe 452 powershell.exe 1088 remcos.exe 1088 remcos.exe 1088 remcos.exe 1088 remcos.exe 1088 remcos.exe 1328 powershell.exe 1088 remcos.exe 1328 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
RFQ-00948-STELLION-878378.exepowershell.exeremcos.exepowershell.exedescription pid Process Token: SeDebugPrivilege 1848 RFQ-00948-STELLION-878378.exe Token: SeDebugPrivilege 452 powershell.exe Token: SeDebugPrivilege 1088 remcos.exe Token: SeDebugPrivilege 1328 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
remcos.exepid Process 2796 remcos.exe -
Suspicious use of WriteProcessMemory 48 IoCs
Processes:
RFQ-00948-STELLION-878378.exeRFQ-00948-STELLION-878378.exeremcos.exedescription pid Process procid_target PID 1848 wrote to memory of 452 1848 RFQ-00948-STELLION-878378.exe 96 PID 1848 wrote to memory of 452 1848 RFQ-00948-STELLION-878378.exe 96 PID 1848 wrote to memory of 452 1848 RFQ-00948-STELLION-878378.exe 96 PID 1848 wrote to memory of 3260 1848 RFQ-00948-STELLION-878378.exe 98 PID 1848 wrote to memory of 3260 1848 RFQ-00948-STELLION-878378.exe 98 PID 1848 wrote to memory of 3260 1848 RFQ-00948-STELLION-878378.exe 98 PID 1848 wrote to memory of 3568 1848 RFQ-00948-STELLION-878378.exe 100 PID 1848 wrote to memory of 3568 1848 RFQ-00948-STELLION-878378.exe 100 PID 1848 wrote to memory of 3568 1848 RFQ-00948-STELLION-878378.exe 100 PID 1848 wrote to memory of 2856 1848 RFQ-00948-STELLION-878378.exe 101 PID 1848 wrote to memory of 2856 1848 RFQ-00948-STELLION-878378.exe 101 PID 1848 wrote to memory of 2856 1848 RFQ-00948-STELLION-878378.exe 101 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 1848 wrote to memory of 4428 1848 RFQ-00948-STELLION-878378.exe 102 PID 4428 wrote to memory of 1088 4428 RFQ-00948-STELLION-878378.exe 103 PID 4428 wrote to memory of 1088 4428 RFQ-00948-STELLION-878378.exe 103 PID 4428 wrote to memory of 1088 4428 RFQ-00948-STELLION-878378.exe 103 PID 1088 wrote to memory of 1328 1088 remcos.exe 107 PID 1088 wrote to memory of 1328 1088 remcos.exe 107 PID 1088 wrote to memory of 1328 1088 remcos.exe 107 PID 1088 wrote to memory of 3832 1088 remcos.exe 109 PID 1088 wrote to memory of 3832 1088 remcos.exe 109 PID 1088 wrote to memory of 3832 1088 remcos.exe 109 PID 1088 wrote to memory of 3256 1088 remcos.exe 111 PID 1088 wrote to memory of 3256 1088 remcos.exe 111 PID 1088 wrote to memory of 3256 1088 remcos.exe 111 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112 PID 1088 wrote to memory of 2796 1088 remcos.exe 112
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:1848 -
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:452
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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\tmpD09E.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3260
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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⤵PID:3568
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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⤵PID:2856
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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:4428 -
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:1088 -
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:1328
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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\tmp2390.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3832
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
PID:3256
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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:2796
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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
MD5fafb7125b67f15147952c38e35c0013a
SHA158dbd58196f8369b9874f9dda07601b0daef520b
SHA256e88442164a9f5a0b548f386f2e2fc654c8b4841405bb09e0abb357cd6c6f5dbc
SHA512e16d516936fc99b788eb848f6e83b51a6d732251d7c20293781f09caa44b74b6ede3c514ebbec015ad8088023d9172904bdccfd8c1112c746eb756963e81414b
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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
MD5c28129ce6ec604a34f1b1832c1348b25
SHA1fb4b35bac0efb53f527d1cd9522f1c664a3843fd
SHA256e919bd028480eba46435aed05ad4fcb3150c0d59675bc8967cb789ea7fbdaea1
SHA512d55c4aaaf3e085e270c1bfcba3c59bc536d800dc2d382891651f79c8d23e10605c8e64bf1e07f8b4f2b78aa6b305d6da8d6cfa2c8a23d8203e34e41d4f814b8a
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD584da63e22d3d6c3a66e7a9eb7298e31e
SHA1278ae2aeaeb7c272189f9115f8aa29550a677863
SHA2569a85e8e7bec7a8c21ebb39729eceea6c44713b32b7176aecf79771ceb42e14d7
SHA512f8ddc8c2860d7f8c2a98780b119012800b943a8c90f37322ccba16fc838686b37c727d2cdbe6dbc8b3abe8944a787da40f6bca39f403398dddcaf287cfee0882