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Analysis
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max time kernel
139s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-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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Executes dropped EXE 2 IoCs
pid Process 2744 sbietrcl.exe 2640 sbietrcl.exe -
Loads dropped DLL 1 IoCs
pid Process 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.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-1-5-21-1385883288-3042840365-2734249351-1000\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 2744 set thread context of 2640 2744 sbietrcl.exe 32 -
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 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sbietrcl.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sbietrcl.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 2744 sbietrcl.exe 2744 sbietrcl.exe 2744 sbietrcl.exe 2744 sbietrcl.exe 2744 sbietrcl.exe 2744 sbietrcl.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe Token: SeDebugPrivilege 2744 sbietrcl.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2640 sbietrcl.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2576 wrote to memory of 2744 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 30 PID 2576 wrote to memory of 2744 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 30 PID 2576 wrote to memory of 2744 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 30 PID 2576 wrote to memory of 2744 2576 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe 30 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32 PID 2744 wrote to memory of 2640 2744 sbietrcl.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe"C:\Users\Admin\AppData\Local\Temp\57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2576 -
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:2744 -
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:2640
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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
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
1.9MB
MD583d91bc64d3c936e4fdc07e92ac56873
SHA1964c5e5ed8c5dd54d3d22d80f6b991de629e6fb1
SHA256f68ad43d2a8aba558d171b6aa36e9f7e0d98c9ce5f8c24f6f6cc5791fbd97d80
SHA5124a25124ce980ed3b3920171024ec9057e9fd221e5408261cef127075e29eacbc9e13a0c528cd047c2d17781546404134075c8fb3e14b35b2782998ca722ad5b3