Analysis
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max time kernel
127s -
max time network
130s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
10/11/2022, 10:55
Behavioral task
behavioral1
Sample
5961cb49dfde82116ba040b5d56be166276dbeffec12bd49c92b3326d68c9c00.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
5961cb49dfde82116ba040b5d56be166276dbeffec12bd49c92b3326d68c9c00.xls
Resource
win10-20220812-en
General
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Target
5961cb49dfde82116ba040b5d56be166276dbeffec12bd49c92b3326d68c9c00.xls
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Size
91KB
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MD5
afc63355b4ffa492e812b1fcf7748d38
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SHA1
6543cfe842b912e3e81945d34a615526ea509f02
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SHA256
5961cb49dfde82116ba040b5d56be166276dbeffec12bd49c92b3326d68c9c00
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SHA512
6ccecd3a5d3a6cbf51b7a4f2f041ef842127442716dbe1c6b8e347bf1dc2dd3798eb84059abc394c5dd4d3ae2ef9d2ef84acf1bc0ba7833b3beb07235a3c1ea1
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SSDEEP
1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/Cs9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgO
Malware Config
Extracted
https://bosny.com/aspnet_client/R50QIOGjmvVlr/
http://navylin.com/autopoisonous/4fZQW/
http://asrani.garudaputih.com/nutabalong/bJYqoUIr99qNfoPDx/
http://db.rikaz.tech/lCx76IlkrBtEsqNFA7/zPYJzpOnzstNOiRHob/
Signatures
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Process spawned unexpected child process 4 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4244 3508 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2076 3508 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3872 3508 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4536 3508 regsvr32.exe 65 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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
pid Process 3508 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3508 EXCEL.EXE 3508 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE 3508 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3508 wrote to memory of 4244 3508 EXCEL.EXE 68 PID 3508 wrote to memory of 4244 3508 EXCEL.EXE 68 PID 3508 wrote to memory of 2076 3508 EXCEL.EXE 69 PID 3508 wrote to memory of 2076 3508 EXCEL.EXE 69 PID 3508 wrote to memory of 3872 3508 EXCEL.EXE 70 PID 3508 wrote to memory of 3872 3508 EXCEL.EXE 70 PID 3508 wrote to memory of 4536 3508 EXCEL.EXE 71 PID 3508 wrote to memory of 4536 3508 EXCEL.EXE 71
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\5961cb49dfde82116ba040b5d56be166276dbeffec12bd49c92b3326d68c9c00.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:3508 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4244
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:2076
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3872
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4536
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