Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29-02-2024 18:13
Behavioral task
behavioral1
Sample
af249c7fb27413495971c8588f3d42c9.xls
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
af249c7fb27413495971c8588f3d42c9.xls
Resource
win10v2004-20240226-en
General
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Target
af249c7fb27413495971c8588f3d42c9.xls
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Size
36KB
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MD5
af249c7fb27413495971c8588f3d42c9
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SHA1
42b3ce6a60e817547519f9f03967ab7135ec65e6
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SHA256
230fcf27eda1602129a154d1ef142710b4c256eb23f11ab3a1d7e8dc048f0e08
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SHA512
7b9b583bd45cece2cd4e158a7a5059c4efa55180349b9fc02a9e5d1d6b1cb046e0b94ec80110999797cf9459bfae0ace0f20e27e77b1c30397ac649c260779d3
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SSDEEP
768:EPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJrlvqa63faq:gok3hbdlylKsgqopeJBWhZFGkE+cL2Nx
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:
explorer.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4036 4068 explorer.exe EXCEL.EXE -
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 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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 -
Modifies registry class 1 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4068 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
EXCEL.EXEpid process 4068 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
EXCEL.EXEpid process 4068 EXCEL.EXE 4068 EXCEL.EXE 4068 EXCEL.EXE 4068 EXCEL.EXE 4068 EXCEL.EXE 4068 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEexplorer.exedescription pid process target process PID 4068 wrote to memory of 4036 4068 EXCEL.EXE explorer.exe PID 4068 wrote to memory of 4036 4068 EXCEL.EXE explorer.exe PID 4164 wrote to memory of 740 4164 explorer.exe WScript.exe PID 4164 wrote to memory of 740 4164 explorer.exe WScript.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\af249c7fb27413495971c8588f3d42c9.xls"1⤵
- 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:4068 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\wvpiEZz.vbs2⤵
- Process spawned unexpected child process
PID:4036
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4164 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\wvpiEZz.vbs"2⤵PID:740
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
555B
MD57fad053382894714a259e22bf4fb59bf
SHA12083f4031814e6599568607132b338b531cbd7d5
SHA2560f62d0fa97be99b767860256e4b6af1a6c9444bb1c0f2a14b7734e42b6e9a172
SHA512b64757be949ee9fe3226ecd72c9ae6ad35af591a46514aaf7c4c11b5a55d447fc1b223ab5d65a3700fb40ec3347468eea40625a49e18f7af2e032470c423323b