Analysis
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max time kernel
147s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
03-07-2024 19:03
Static task
static1
Behavioral task
behavioral1
Sample
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe
Resource
win10v2004-20240508-en
General
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Target
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe
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Size
2.4MB
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MD5
f7f2373c7005d9978782be75bef6a1c4
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SHA1
24523818e79c6ccc38c90de912743552e98be2be
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SHA256
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13
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SHA512
26e4a9ba65207c91dd181c5010d051838d6172dcbfc165aa750cbe72297dde0b0c0e54b024a6cba070089f3ac5f943d67ba779ee64f78a8f37b425f274f607d8
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SSDEEP
49152:IK08+UO8Ajkw2s5uNuuiV/0H31F7AqxxJ/PgWAOEIm9B1:/V+UTwDl5eiGXPNxxJQxIm
Malware Config
Extracted
stealc
jony
http://85.28.47.4
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url_path
/920475a59bac849d.php
Extracted
amadey
4.30
4dd39d
http://77.91.77.82
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install_dir
ad40971b6b
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install_file
explorti.exe
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strings_key
a434973ad22def7137dbb5e059b7081e
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url_paths
/Hun4Ko/index.php
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
Processes:
BKKKEGIDBG.exeexplorti.exeexplorti.exeexplorti.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ BKKKEGIDBG.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorti.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorti.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ explorti.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorti.exeexplorti.exeexplorti.exeBKKKEGIDBG.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorti.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorti.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorti.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorti.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorti.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion explorti.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion BKKKEGIDBG.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion BKKKEGIDBG.exe -
Executes dropped EXE 5 IoCs
Processes:
BKKKEGIDBG.exeexplorti.exef68583d236.exeexplorti.exeexplorti.exepid Process 1432 BKKKEGIDBG.exe 1384 explorti.exe 4176 f68583d236.exe 2760 explorti.exe 3036 explorti.exe -
Identifies Wine through registry keys 2 TTPs 4 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
explorti.exeexplorti.exeBKKKEGIDBG.exeexplorti.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-952492217-3293592999-1071733403-1000\Software\Wine explorti.exe Key opened \REGISTRY\USER\S-1-5-21-952492217-3293592999-1071733403-1000\Software\Wine explorti.exe Key opened \REGISTRY\USER\S-1-5-21-952492217-3293592999-1071733403-1000\Software\Wine BKKKEGIDBG.exe Key opened \REGISTRY\USER\S-1-5-21-952492217-3293592999-1071733403-1000\Software\Wine explorti.exe -
Loads dropped DLL 2 IoCs
Processes:
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exepid Process 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
Processes:
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exeBKKKEGIDBG.exeexplorti.exef68583d236.exeexplorti.exeexplorti.exepid Process 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 1432 BKKKEGIDBG.exe 1384 explorti.exe 4176 f68583d236.exe 2760 explorti.exe 3036 explorti.exe -
Drops file in Windows directory 1 IoCs
Processes:
BKKKEGIDBG.exedescription ioc Process File created C:\Windows\Tasks\explorti.job BKKKEGIDBG.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exeBKKKEGIDBG.exeexplorti.exeexplorti.exeexplorti.exepid Process 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 1432 BKKKEGIDBG.exe 1432 BKKKEGIDBG.exe 1384 explorti.exe 1384 explorti.exe 2760 explorti.exe 2760 explorti.exe 3036 explorti.exe 3036 explorti.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.execmd.exef68583d236.exepid Process 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 3416 cmd.exe 4176 f68583d236.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.execmd.exeBKKKEGIDBG.exeexplorti.exedescription pid Process procid_target PID 4460 wrote to memory of 1000 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 80 PID 4460 wrote to memory of 1000 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 80 PID 4460 wrote to memory of 1000 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 80 PID 4460 wrote to memory of 3416 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 82 PID 4460 wrote to memory of 3416 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 82 PID 4460 wrote to memory of 3416 4460 bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe 82 PID 1000 wrote to memory of 1432 1000 cmd.exe 84 PID 1000 wrote to memory of 1432 1000 cmd.exe 84 PID 1000 wrote to memory of 1432 1000 cmd.exe 84 PID 1432 wrote to memory of 1384 1432 BKKKEGIDBG.exe 85 PID 1432 wrote to memory of 1384 1432 BKKKEGIDBG.exe 85 PID 1432 wrote to memory of 1384 1432 BKKKEGIDBG.exe 85 PID 1384 wrote to memory of 4176 1384 explorti.exe 86 PID 1384 wrote to memory of 4176 1384 explorti.exe 86 PID 1384 wrote to memory of 4176 1384 explorti.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe"C:\Users\Admin\AppData\Local\Temp\bf5ba13df7f7549e987f77091823fd0f77ba7fd4514000e60ad9a4c28f949c13.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4460 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKKKEGIDBG.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1000 -
C:\Users\Admin\AppData\Local\Temp\BKKKEGIDBG.exe"C:\Users\Admin\AppData\Local\Temp\BKKKEGIDBG.exe"3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1432 -
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"4⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1384 -
C:\Users\Admin\AppData\Local\Temp\1000006001\f68583d236.exe"C:\Users\Admin\AppData\Local\Temp\1000006001\f68583d236.exe"5⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
PID:4176
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\FHJEGIIEGI.exe"2⤵
- Suspicious use of SetWindowsHookEx
PID:3416
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C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exeC:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2760
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C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exeC:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3036
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
2.4MB
MD505dda1c444fe4feda4771f75598d55d7
SHA13369deefd76ea12c621aad635547be857720d7d8
SHA2569a501e3c19a488ab6672598e26af59a019c471aaf67adcd1dba4734d7a2b9e48
SHA51201c7897fa5995332c466035f62e45faf12ff0cead90655df53c0b493833656c177b53594a0d8300c792fc43d2f6daa577e3f949f6e9118c950472d1a85ac6160
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Filesize
1.8MB
MD55e33887744d5344a28c8d5f16702af26
SHA175a1791a1819ebaa602202a82e8e969081cee2e4
SHA256c07406805d442d5d9cdf4b80f9568d8b0e16652292e3c7a0eb0487dc0ede8721
SHA512de95b45ab2cdf2090f18065bfadb72b9d581eb2c59045b02127329d31364ca8de63371f34dc0c5f6dab00f36c2ebb213de5225a3d63e4535bc9b397d522554ab