Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
11-08-2024 22:22
Static task
static1
Behavioral task
behavioral1
Sample
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe
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Size
412KB
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MD5
8c359e6a1e069354f3c7ceb5457157e6
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SHA1
b1d305325bdf240f374de2f10932db83290199ff
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SHA256
598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175
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SHA512
98292df3fdc144f80b0e5c0f767323c65b1284a2adc282c528428f80b0b4045d50fa8f168c7bec9541e62b11548c177a552bd5d49f62ebf0a6a2174df234a613
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SSDEEP
6144:wqM0Y9PoTx4xOm6FylOUunSxIbshHuYxE17ACbPTvPCd7oPhUumf:MiW85S2boHuY217AyvPKUPm
Malware Config
Extracted
remcos
3.0.1 Pro
RemoteHost
capriteam.ddns.net:1010
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audio_folder
MicRecords
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audio_path
%AppData%
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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
true
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hide_file
true
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hide_keylog_file
false
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install_flag
true
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install_path
%AppData%
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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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keylog_path
%AppData%
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mouse_option
false
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mutex
Remcos-VHHYND
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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startup_value
Remcos
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take_screenshot_option
false
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take_screenshot_time
5
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take_screenshot_title
wikipedia;solitaire;
Signatures
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exeWScript.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation WScript.exe -
Deletes itself 1 IoCs
Processes:
WScript.exepid Process 3948 WScript.exe -
Executes dropped EXE 2 IoCs
Processes:
remcos.exeremcos.exepid Process 3296 remcos.exe 184 remcos.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exeremcos.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" remcos.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exeremcos.exedescription pid Process procid_target PID 4700 set thread context of 2152 4700 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 87 PID 3296 set thread context of 184 3296 remcos.exe 92 -
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 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exeWScript.execmd.exeremcos.exeremcos.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language remcos.exe -
Modifies registry class 1 IoCs
Processes:
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exeremcos.exepid Process 4700 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 3296 remcos.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exeremcos.exepid Process 4700 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 3296 remcos.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exeWScript.execmd.exeremcos.exedescription pid Process procid_target PID 4700 wrote to memory of 2152 4700 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 87 PID 4700 wrote to memory of 2152 4700 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 87 PID 4700 wrote to memory of 2152 4700 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 87 PID 4700 wrote to memory of 2152 4700 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 87 PID 2152 wrote to memory of 3948 2152 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 88 PID 2152 wrote to memory of 3948 2152 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 88 PID 2152 wrote to memory of 3948 2152 8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe 88 PID 3948 wrote to memory of 2120 3948 WScript.exe 89 PID 3948 wrote to memory of 2120 3948 WScript.exe 89 PID 3948 wrote to memory of 2120 3948 WScript.exe 89 PID 2120 wrote to memory of 3296 2120 cmd.exe 91 PID 2120 wrote to memory of 3296 2120 cmd.exe 91 PID 2120 wrote to memory of 3296 2120 cmd.exe 91 PID 3296 wrote to memory of 184 3296 remcos.exe 92 PID 3296 wrote to memory of 184 3296 remcos.exe 92 PID 3296 wrote to memory of 184 3296 remcos.exe 92 PID 3296 wrote to memory of 184 3296 remcos.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4700 -
C:\Users\Admin\AppData\Local\Temp\8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8c359e6a1e069354f3c7ceb5457157e6_JaffaCakes118.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"3⤵
- Checks computer location settings
- Deletes itself
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3948 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeC:\Users\Admin\AppData\Roaming\Remcos\remcos.exe5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3296 -
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"6⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:184
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
622B
MD5446d46a10ed98089b971d9a020d5e3a9
SHA12d9122ad7824a0cdd921957ee6e22d49da3e8464
SHA256edddf2f2b1a3ba2193fab31fc4be5959b6edf09cb66d29e3c0baf975551efc3d
SHA512fb3ad7e626ba20d9660aeaba662a946c38fd4bb731e65a1f3a8589d410bfb4c27b089a3b94a9898acc91bd9df9f6c905e573f009aa84cef1b7d46bad5fbe48e5
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Filesize
412KB
MD58c359e6a1e069354f3c7ceb5457157e6
SHA1b1d305325bdf240f374de2f10932db83290199ff
SHA256598fbc003f3775d3441846dec51317b6e81422a78c9a0d1b53353025d6953175
SHA51298292df3fdc144f80b0e5c0f767323c65b1284a2adc282c528428f80b0b4045d50fa8f168c7bec9541e62b11548c177a552bd5d49f62ebf0a6a2174df234a613