Analysis
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max time kernel
127s -
max time network
147s -
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, 10:40
Behavioral task
behavioral1
Sample
e64549e88b14c5d72ce5c38e58c6fc8277eb913e10e5b34380cbd40fdc2833d9.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
e64549e88b14c5d72ce5c38e58c6fc8277eb913e10e5b34380cbd40fdc2833d9.xls
Resource
win10-20220812-en
General
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Target
e64549e88b14c5d72ce5c38e58c6fc8277eb913e10e5b34380cbd40fdc2833d9.xls
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Size
91KB
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MD5
5e526732866804a265eac2f6287914b6
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SHA1
c69aeb18ecbde20081fa6933eeb1b50db342a80f
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SHA256
e64549e88b14c5d72ce5c38e58c6fc8277eb913e10e5b34380cbd40fdc2833d9
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SHA512
f6142c20412a446b982dadf2db61b9f6dbe6a0b9e779be950ff7bbf37f94f23dca0cbf69e42216fd7d8ea4a6ff4f6eddcebbd29cc60c7bb80760338645119671
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SSDEEP
1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/is9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgm
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 3336 3984 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3848 3984 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4688 3984 regsvr32.exe 65 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4524 3984 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 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
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 3984 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3984 EXCEL.EXE 3984 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3984 wrote to memory of 3336 3984 EXCEL.EXE 68 PID 3984 wrote to memory of 3336 3984 EXCEL.EXE 68 PID 3984 wrote to memory of 3848 3984 EXCEL.EXE 69 PID 3984 wrote to memory of 3848 3984 EXCEL.EXE 69 PID 3984 wrote to memory of 4688 3984 EXCEL.EXE 70 PID 3984 wrote to memory of 4688 3984 EXCEL.EXE 70 PID 3984 wrote to memory of 4524 3984 EXCEL.EXE 71 PID 3984 wrote to memory of 4524 3984 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\e64549e88b14c5d72ce5c38e58c6fc8277eb913e10e5b34380cbd40fdc2833d9.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:3984 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3336
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3848
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4688
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4524
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