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Analysis
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max time kernel
140s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
23/07/2024, 21:46
Static task
static1
Behavioral task
behavioral1
Sample
57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
Resource
win10v2004-20240709-en
General
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Target
57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
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Size
1.9MB
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MD5
a01fc27f1f56ee7a8803c9ec23516f76
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SHA1
5454698bd7f59b0bf6ada7c26e29fcea903caa2a
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SHA256
57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee
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SHA512
648a557b9f1bca784f3d046541f4f5102640d9ed2d87b854d2720fb35c83f22f0b924d0c71ed3fd8c929b9429fd092cf531e9f8d15be190850ffb63d939f4dee
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SSDEEP
24576:OD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYFES7Ns:Op7E+QrFUBgq2aa
Malware Config
Extracted
remcos
1.7 Pro
Host
213.183.58.19:4000
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audio_folder
audio
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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
5
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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
true
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install_flag
false
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install_path
%AppData%
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keylog_crypt
true
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keylog_file
read.dat
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keylog_flag
false
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keylog_folder
CastC
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keylog_path
%AppData%
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mouse_option
false
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mutex
remcos_sccafsoidz
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screens
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screenshot_path
%AppData%
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screenshot_time
1
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startup_value
remcos
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe -
Executes dropped EXE 2 IoCs
pid Process 2908 sbietrcl.exe 3032 sbietrcl.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe" 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2908 set thread context of 3032 2908 sbietrcl.exe 95 -
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 3 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 sbietrcl.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sbietrcl.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 2908 sbietrcl.exe 2908 sbietrcl.exe 2908 sbietrcl.exe 2908 sbietrcl.exe 2908 sbietrcl.exe 2908 sbietrcl.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe Token: SeDebugPrivilege 2908 sbietrcl.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3032 sbietrcl.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1052 wrote to memory of 2908 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 92 PID 1052 wrote to memory of 2908 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 92 PID 1052 wrote to memory of 2908 1052 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 92 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95 PID 2908 wrote to memory of 3032 2908 sbietrcl.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe"C:\Users\Admin\AppData\Local\Temp\57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1052 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"2⤵
- 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:2908 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3032
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.9MB
MD5ccad4f72c1dd34b23a3a5f2afec82b38
SHA12f6a6e7082f57758eb90c3281c53660d9219276a
SHA256fcb2658874bcc30433a9e2bae1618d461362ffbd7b279e1fc63bfaf3110b5a2e
SHA512f69bd6d2dc4dd7c78350a1c2d96d47f81cf9fc2fd6266852391d01e44c6d7150021d03b8d96eabffd393018530f0a7bc97bd4c87e7795c8e7dd4d5b362c22fed