Analysis
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max time kernel
134s -
max time network
152s -
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, 10:53
Behavioral task
behavioral1
Sample
d516a593ae3def9aa4752da1133b8609b99573a207829611c882944bc895066f.xls
Resource
win10-20220812-en
Behavioral task
behavioral2
Sample
d516a593ae3def9aa4752da1133b8609b99573a207829611c882944bc895066f.xls
Resource
win10-20220812-en
General
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Target
d516a593ae3def9aa4752da1133b8609b99573a207829611c882944bc895066f.xls
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Size
91KB
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MD5
bfe7444d98f04bd27e91a89f434f4ef8
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SHA1
d47b62e3fcc12c0def120d42ba4ad3334dce9b08
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SHA256
d516a593ae3def9aa4752da1133b8609b99573a207829611c882944bc895066f
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SHA512
91616f20c9e2b6366a65a21723b695670ac00c7b312986c827ec9db1d8633148e01d928babfe8bc4a072e421b8a3e4c9ed5076d7ca89b6628fb5578ac25aaf17
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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 4564 4324 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3676 4324 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2660 4324 regsvr32.exe 66 Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4932 4324 regsvr32.exe 66 -
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 4324 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4324 EXCEL.EXE 4324 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE 4324 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4324 wrote to memory of 4564 4324 EXCEL.EXE 69 PID 4324 wrote to memory of 4564 4324 EXCEL.EXE 69 PID 4324 wrote to memory of 3676 4324 EXCEL.EXE 70 PID 4324 wrote to memory of 3676 4324 EXCEL.EXE 70 PID 4324 wrote to memory of 2660 4324 EXCEL.EXE 71 PID 4324 wrote to memory of 2660 4324 EXCEL.EXE 71 PID 4324 wrote to memory of 4932 4324 EXCEL.EXE 72 PID 4324 wrote to memory of 4932 4324 EXCEL.EXE 72
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\d516a593ae3def9aa4752da1133b8609b99573a207829611c882944bc895066f.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:4324 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4564
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
PID:3676
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
PID:2660
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4932
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