Analysis
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max time kernel
102s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07-09-2024 07:08
Behavioral task
behavioral1
Sample
中小学名单/2012农村中学.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
中小学名单/2012农村中学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
中小学名单/2012农村小学.xls
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
中小学名单/2012农村小学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
中小学名单/2012城市中学.xls
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
中小学名单/2012城市中学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
中小学名单/2012城市小学.xls
Resource
win7-20240708-en
Behavioral task
behavioral8
Sample
中小学名单/2012城市小学.xls
Resource
win10v2004-20240802-en
General
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Target
中小学名单/2012农村中学.xls
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Size
147KB
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MD5
884d042fdba1b38f60bd07b60d7fc1c1
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SHA1
fd5dcb15aa13e3d83ec000b22a018305f06adbab
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SHA256
c3fd1e89139699f1172cec9064ed64187b880c2ca35a92c330126ac0f9bf659d
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SHA512
337a1edaa3b9cd63233e9fa8f1d9e27e76449e0c861fcaf39a36a9c154b98bd6451c1894d49342a37a032ef1be3cdb77c3b58479d82e5254dc65fe910b472bee
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SSDEEP
3072:vRfzWki0BzuM7MY4O0rQt2jEc0lbxOs2U0J6XwYyJ:G0BzuoSMrih
Malware Config
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.execmd.execmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2868 668 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3652 668 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4528 668 cmd.exe EXCEL.EXE -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\中小学名单\2012农村中学.xls office_xlm_macros -
Deletes itself 1 IoCs
Processes:
EXCEL.EXEpid process 668 EXCEL.EXE -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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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 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 -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\中小学名单\C7775E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 668 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE 668 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 668 wrote to memory of 4528 668 EXCEL.EXE cmd.exe PID 668 wrote to memory of 4528 668 EXCEL.EXE cmd.exe PID 668 wrote to memory of 3652 668 EXCEL.EXE cmd.exe PID 668 wrote to memory of 3652 668 EXCEL.EXE cmd.exe PID 668 wrote to memory of 2868 668 EXCEL.EXE cmd.exe PID 668 wrote to memory of 2868 668 EXCEL.EXE cmd.exe PID 4528 wrote to memory of 868 4528 cmd.exe attrib.exe PID 4528 wrote to memory of 868 4528 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
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\中小学名单\2012农村中学.xls"1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:668 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4528 -
C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
PID:868 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
PID:3652 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
PID:2868
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
175KB
MD58a4dad26f81c62dd31ff2c23e15428de
SHA14035cbf0cf47b308c9d1d0cff7e4821c03bde801
SHA2561253b072c9822cff7687737f9eda4b5d71370a1c398153f61dbc04c6ff0a0c4e
SHA51264aaacc61275efcd597e9cdbb168a9f2a07f5b3499099a7a6653d5074b0315edbc38801cd73c953721361d7d4362bcfc310953354a3b172551a88ae3b325bfe4