Analysis
-
max time kernel
149s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
27-11-2024 12:11
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
-
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
-
Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
Processes:
resource yara_rule behavioral1/memory/2024-97-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/1288-100-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/1784-98-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/1784-98-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/1288-100-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
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 2688 powershell.exe 1836 powershell.exe -
Executes dropped EXE 5 IoCs
Processes:
remcos.exeremcos.exeremcos.exeremcos.exeremcos.exepid Process 2140 remcos.exe 776 remcos.exe 1288 remcos.exe 1784 remcos.exe 2024 remcos.exe -
Loads dropped DLL 1 IoCs
Processes:
RFQ-00948-STELLION-878378.exepid Process 2596 RFQ-00948-STELLION-878378.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
remcos.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts 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-1-5-21-3533259084-2542256011-65585152-1000\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-1-5-21-3533259084-2542256011-65585152-1000\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 5 IoCs
Processes:
RFQ-00948-STELLION-878378.exeremcos.exeremcos.exedescription pid Process procid_target PID 2352 set thread context of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2140 set thread context of 776 2140 remcos.exe 41 PID 776 set thread context of 1288 776 remcos.exe 43 PID 776 set thread context of 1784 776 remcos.exe 44 PID 776 set thread context of 2024 776 remcos.exe 45 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 11 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
RFQ-00948-STELLION-878378.exepowershell.exeRFQ-00948-STELLION-878378.exeremcos.exeremcos.exeschtasks.exeremcos.exeschtasks.exepowershell.exeremcos.exeremcos.exedescription ioc Process 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 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 remcos.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 schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.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 2564 schtasks.exe 1536 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
RFQ-00948-STELLION-878378.exepowershell.exeremcos.exepowershell.exeremcos.exepid Process 2352 RFQ-00948-STELLION-878378.exe 2352 RFQ-00948-STELLION-878378.exe 2352 RFQ-00948-STELLION-878378.exe 2352 RFQ-00948-STELLION-878378.exe 2688 powershell.exe 2140 remcos.exe 2140 remcos.exe 2140 remcos.exe 2140 remcos.exe 1836 powershell.exe 1288 remcos.exe 1288 remcos.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
Processes:
remcos.exepid Process 776 remcos.exe 776 remcos.exe 776 remcos.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
RFQ-00948-STELLION-878378.exepowershell.exeremcos.exepowershell.exeremcos.exedescription pid Process Token: SeDebugPrivilege 2352 RFQ-00948-STELLION-878378.exe Token: SeDebugPrivilege 2688 powershell.exe Token: SeDebugPrivilege 2140 remcos.exe Token: SeDebugPrivilege 1836 powershell.exe Token: SeDebugPrivilege 2024 remcos.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
remcos.exepid Process 776 remcos.exe -
Suspicious use of WriteProcessMemory 61 IoCs
Processes:
RFQ-00948-STELLION-878378.exeRFQ-00948-STELLION-878378.exeremcos.exeremcos.exedescription pid Process procid_target PID 2352 wrote to memory of 2688 2352 RFQ-00948-STELLION-878378.exe 31 PID 2352 wrote to memory of 2688 2352 RFQ-00948-STELLION-878378.exe 31 PID 2352 wrote to memory of 2688 2352 RFQ-00948-STELLION-878378.exe 31 PID 2352 wrote to memory of 2688 2352 RFQ-00948-STELLION-878378.exe 31 PID 2352 wrote to memory of 2564 2352 RFQ-00948-STELLION-878378.exe 32 PID 2352 wrote to memory of 2564 2352 RFQ-00948-STELLION-878378.exe 32 PID 2352 wrote to memory of 2564 2352 RFQ-00948-STELLION-878378.exe 32 PID 2352 wrote to memory of 2564 2352 RFQ-00948-STELLION-878378.exe 32 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2352 wrote to memory of 2596 2352 RFQ-00948-STELLION-878378.exe 35 PID 2596 wrote to memory of 2140 2596 RFQ-00948-STELLION-878378.exe 36 PID 2596 wrote to memory of 2140 2596 RFQ-00948-STELLION-878378.exe 36 PID 2596 wrote to memory of 2140 2596 RFQ-00948-STELLION-878378.exe 36 PID 2596 wrote to memory of 2140 2596 RFQ-00948-STELLION-878378.exe 36 PID 2140 wrote to memory of 1836 2140 remcos.exe 37 PID 2140 wrote to memory of 1836 2140 remcos.exe 37 PID 2140 wrote to memory of 1836 2140 remcos.exe 37 PID 2140 wrote to memory of 1836 2140 remcos.exe 37 PID 2140 wrote to memory of 1536 2140 remcos.exe 38 PID 2140 wrote to memory of 1536 2140 remcos.exe 38 PID 2140 wrote to memory of 1536 2140 remcos.exe 38 PID 2140 wrote to memory of 1536 2140 remcos.exe 38 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 2140 wrote to memory of 776 2140 remcos.exe 41 PID 776 wrote to memory of 1288 776 remcos.exe 43 PID 776 wrote to memory of 1288 776 remcos.exe 43 PID 776 wrote to memory of 1288 776 remcos.exe 43 PID 776 wrote to memory of 1288 776 remcos.exe 43 PID 776 wrote to memory of 1288 776 remcos.exe 43 PID 776 wrote to memory of 1784 776 remcos.exe 44 PID 776 wrote to memory of 1784 776 remcos.exe 44 PID 776 wrote to memory of 1784 776 remcos.exe 44 PID 776 wrote to memory of 1784 776 remcos.exe 44 PID 776 wrote to memory of 1784 776 remcos.exe 44 PID 776 wrote to memory of 2024 776 remcos.exe 45 PID 776 wrote to memory of 2024 776 remcos.exe 45 PID 776 wrote to memory of 2024 776 remcos.exe 45 PID 776 wrote to memory of 2024 776 remcos.exe 45 PID 776 wrote to memory of 2024 776 remcos.exe 45
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ-00948-STELLION-878378.exe"C:\Users\Admin\AppData\Local\Temp\RFQ-00948-STELLION-878378.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2352 -
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:2688
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QgjhVvUyb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E51.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2564
-
-
C:\Users\Admin\AppData\Local\Temp\RFQ-00948-STELLION-878378.exe"C:\Users\Admin\AppData\Local\Temp\RFQ-00948-STELLION-878378.exe"2⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596 -
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"3⤵
- 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:2140 -
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:1836
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QgjhVvUyb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7EC1.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1536
-
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:776 -
C:\ProgramData\Remcos\remcos.exeC:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\whanluhjblivkjogztqrwarpjhvvaazmg"5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1288
-
-
C:\ProgramData\Remcos\remcos.exeC:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\hcfxen"5⤵
- Executes dropped EXE
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:1784
-
-
C:\ProgramData\Remcos\remcos.exeC:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\jetqffcfk"5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2024
-
-
-
-
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
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
144B
MD50f16d2a4b35cc5bc8f1e97491eb9d81b
SHA17696ee614ef2f5af733a6f745d54552734806b07
SHA256ac1975b3cd8dbe03b3d1900ee268b11d4433f976cac05567ccc749f370b948de
SHA5121c2234fc2207a06b9759155cc13d2882b36fe94f6c085e6f8c9374a156e79faceffee4dcbc117cf0d0ab3a65cb0d8d8416388e7e98aa7eab54c90641e0d0af73
-
Filesize
1.1MB
MD57d78937ebc3648958437741df13eec52
SHA19b30169d5adb06c082d6b9e297368faad45725f5
SHA256ed73c850e933acc5b599b4afb095b7e1244133c28e94fdb30ffb31b22a4b3c6a
SHA5127e1acb40093bdb9a23d598a5766011409e6ef88b329c69eec3b32ea6873817e09b41e70383ae5eed3752283087db35ede2f28bf291c49df14fbeaf5b98decba4
-
Filesize
1KB
MD513599b98e31d23c963633040cedd21c6
SHA15fe57c0c7822d05fefa88c4805009a7cb669c9a0
SHA256f22536e7baf7fe0eab45db4714353e9136f2626f81c5459028fd83c45f186132
SHA512b9370d6732a196ab997be4c0153657644645001ab779e9bcc771ef239c6906a938f22ccd458e6c9ec6df12c3057d1d8f8a9b1d5239c2d4e59a2fa0e307b99d88
-
Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD5e615bcfdfbd69844fa339140e332a6de
SHA1ee4e93d97e2aefd7cd09d7c137c67d677b543567
SHA256c7fe1a438c839f1c69746a2ab5f2d8f3ba56ff888f3fa0da62ddb8db72cbbfc2
SHA51299f5a7f43bccc2ad21f123c3c45ebfba8e79f31bd68b2f5059041b7f2d01d1bbef2464fc0d8da03a5dfc532c3477ffd0d4eaac3d6466dfdc8e861b321fc7b85d