Analysis
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max time kernel
151s -
max time network
180s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
29-01-2023 19:22
Behavioral task
behavioral1
Sample
104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e.xls
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e.xls
Resource
win10v2004-20220812-en
General
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Target
104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e.xls
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Size
36KB
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MD5
25dd382ee6cc4750d2b64bad7462b3c6
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SHA1
309191c3dd43fa9c1038d8946b60692619b18c2f
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SHA256
104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e
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SHA512
cedec53b7725427e6d921303af0b4bbd20b4e63801b7f44fce4b71a7e3f013c2a7a5094d9f5f23428c6282fa143e7eda7657ef71663392df35b2c9891cf4db9d
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SSDEEP
768:GPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJ62iu8PM6SbqWmg:6ok3hbdlylKsgqopeJBWhZFGkE+cL2Nk
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 224 4564 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\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4564 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE 4564 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEexplorer.exedescription pid process target process PID 4564 wrote to memory of 224 4564 EXCEL.EXE explorer.exe PID 4564 wrote to memory of 224 4564 EXCEL.EXE explorer.exe PID 648 wrote to memory of 3016 648 explorer.exe WScript.exe PID 648 wrote to memory of 3016 648 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\104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\c3IBzBd.vbs2⤵
- Process spawned unexpected child process
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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
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\c3IBzBd.vbs"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Public\Documents\c3IBzBd.vbsFilesize
554B
MD5f28165c087fc763ea1b528dfb07035fb
SHA1a71a64a31a905bb4642bbda5c2a59db7a5c01146
SHA256e8b25d80a07982f01000e23dd6de94d8b8985bdcf48f2094cb5ef9451dbbf194
SHA5126183c6ed1245ea7a7e44f137dcab2f69c471585dd590f64d06cd8cc1bae29b9acecc59324f26d9da6605336defcfb003074cd1068989c18b610d14b8b95654e4
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memory/224-139-0x0000000000000000-mapping.dmp
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memory/3016-141-0x0000000000000000-mapping.dmp
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memory/4564-132-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmpFilesize
64KB
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memory/4564-133-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmpFilesize
64KB
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memory/4564-134-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmpFilesize
64KB
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memory/4564-135-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmpFilesize
64KB
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memory/4564-136-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmpFilesize
64KB
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memory/4564-137-0x00007FFD5A380000-0x00007FFD5A390000-memory.dmpFilesize
64KB
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memory/4564-138-0x00007FFD5A380000-0x00007FFD5A390000-memory.dmpFilesize
64KB