Analysis
-
max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2024 03:01
Static task
static1
Behavioral task
behavioral1
Sample
RFQ-00948-STELLION-878378.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
RFQ-00948-STELLION-878378.exe
Resource
win10v2004-20241007-en
General
-
Target
RFQ-00948-STELLION-878378.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 1700 powershell.exe 3048 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation RFQ-00948-STELLION-878378.exe Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation RFQ-00948-STELLION-878378.exe Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation remcos.exe -
Executes dropped EXE 4 IoCs
Processes:
remcos.exeremcos.exeremcos.exeremcos.exepid Process 4316 remcos.exe 1480 remcos.exe 4212 remcos.exe 3568 remcos.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
remcos.exeRFQ-00948-STELLION-878378.exedescription ioc Process 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-1-5-21-4050598569-1597076380-177084960-1000\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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\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 2176 set thread context of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 4316 set thread context of 3568 4316 remcos.exe 103 -
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:
powershell.exeschtasks.exeRFQ-00948-STELLION-878378.exeremcos.exepowershell.exeschtasks.exeremcos.exeRFQ-00948-STELLION-878378.exedescription ioc Process 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 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 -
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 2024 schtasks.exe 1852 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
RFQ-00948-STELLION-878378.exepowershell.exeremcos.exepowershell.exepid Process 2176 RFQ-00948-STELLION-878378.exe 2176 RFQ-00948-STELLION-878378.exe 2176 RFQ-00948-STELLION-878378.exe 1700 powershell.exe 2176 RFQ-00948-STELLION-878378.exe 1700 powershell.exe 4316 remcos.exe 4316 remcos.exe 4316 remcos.exe 4316 remcos.exe 4316 remcos.exe 4316 remcos.exe 4316 remcos.exe 4316 remcos.exe 3048 powershell.exe 3048 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
RFQ-00948-STELLION-878378.exepowershell.exeremcos.exepowershell.exedescription pid Process Token: SeDebugPrivilege 2176 RFQ-00948-STELLION-878378.exe Token: SeDebugPrivilege 1700 powershell.exe Token: SeDebugPrivilege 4316 remcos.exe Token: SeDebugPrivilege 3048 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
remcos.exepid Process 3568 remcos.exe -
Suspicious use of WriteProcessMemory 45 IoCs
Processes:
RFQ-00948-STELLION-878378.exeRFQ-00948-STELLION-878378.exeremcos.exedescription pid Process procid_target PID 2176 wrote to memory of 1700 2176 RFQ-00948-STELLION-878378.exe 89 PID 2176 wrote to memory of 1700 2176 RFQ-00948-STELLION-878378.exe 89 PID 2176 wrote to memory of 1700 2176 RFQ-00948-STELLION-878378.exe 89 PID 2176 wrote to memory of 2024 2176 RFQ-00948-STELLION-878378.exe 91 PID 2176 wrote to memory of 2024 2176 RFQ-00948-STELLION-878378.exe 91 PID 2176 wrote to memory of 2024 2176 RFQ-00948-STELLION-878378.exe 91 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 2176 wrote to memory of 1144 2176 RFQ-00948-STELLION-878378.exe 93 PID 1144 wrote to memory of 4316 1144 RFQ-00948-STELLION-878378.exe 94 PID 1144 wrote to memory of 4316 1144 RFQ-00948-STELLION-878378.exe 94 PID 1144 wrote to memory of 4316 1144 RFQ-00948-STELLION-878378.exe 94 PID 4316 wrote to memory of 3048 4316 remcos.exe 97 PID 4316 wrote to memory of 3048 4316 remcos.exe 97 PID 4316 wrote to memory of 3048 4316 remcos.exe 97 PID 4316 wrote to memory of 1852 4316 remcos.exe 99 PID 4316 wrote to memory of 1852 4316 remcos.exe 99 PID 4316 wrote to memory of 1852 4316 remcos.exe 99 PID 4316 wrote to memory of 1480 4316 remcos.exe 101 PID 4316 wrote to memory of 1480 4316 remcos.exe 101 PID 4316 wrote to memory of 1480 4316 remcos.exe 101 PID 4316 wrote to memory of 4212 4316 remcos.exe 102 PID 4316 wrote to memory of 4212 4316 remcos.exe 102 PID 4316 wrote to memory of 4212 4316 remcos.exe 102 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103 PID 4316 wrote to memory of 3568 4316 remcos.exe 103
Processes
-
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:2176 -
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:1700
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QgjhVvUyb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDED7.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2024
-
-
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:1144 -
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:4316 -
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:3048
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QgjhVvUyb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3AA3.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1852
-
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
PID:1480
-
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
PID:4212
-
-
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:3568
-
-
-
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
MD50ee93e247f9993876cab1b4ff5e43779
SHA1ea721a66427fd3bf795097ddc392cb58f578349a
SHA256e10acc7bc7f56d52edc2f079266439ffc0318b6d25fa1406f5c931a3e5a8cb58
SHA5121888d9334e817129aec03e121b94a10ea25c0e25b152441700d56f942cf901e2cf07c3fe1e7a25cde3805c079056b4f7db0d3db2730df0f5f94e38a6921708dc
-
Filesize
1.1MB
MD57d78937ebc3648958437741df13eec52
SHA19b30169d5adb06c082d6b9e297368faad45725f5
SHA256ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a
SHA5127e1acb40093bdb9a23d598a5766011409e6ef88b329c69eec3b32ea6873817e09b41e70383ae5eed3752283087db35ede2f28bf291c49df14fbeaf5b98decba4
-
Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
-
Filesize
18KB
MD5ba16e5be2ca55b93f567b8f457a03eae
SHA158e56fab94fc6ea853ff55f95678d07b8ce49529
SHA2563cddb3fe2078f991069218f886a09993541313059b18381804ebd6f637456696
SHA512bc6d555d37531dca87917b99e2403558c0c7053f3cbcb470c4dd5575a929fedc0a0b42c79a1d6776b6ca61bdefe4d547e100e7c30096e889e9e705276282fa83
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
1KB
MD57efba3391c9d516ed8f68fc2f833842e
SHA152a2ce8472a745ba8db164b5eb24e0b159c5e842
SHA256b965a569e857df5c573cb11f737fd3c3e9e48dd4bdf9fb640ccb4476b0b7a16a
SHA512c9219c35f58886f449925e1e714e962dc9c19bd9b6e8683c2ccba2d4e243a512978a6bc002e8d564cddce69a06bd272b54a60f0f929d8ee797e2174ce9f72bfe