Analysis
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max time kernel
149s -
max time network
142s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
13-01-2022 20:29
Behavioral task
behavioral1
Sample
667b2a5c8b1d3f4f93e3a2c5e4dd70cc415dbe8b58ede65a9e6f3c7b2458e97e.xlsm
Resource
win10-en-20211208
Behavioral task
behavioral2
Sample
667b2a5c8b1d3f4f93e3a2c5e4dd70cc415dbe8b58ede65a9e6f3c7b2458e97e.xlsm
Resource
win10-en-20211208
General
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Target
667b2a5c8b1d3f4f93e3a2c5e4dd70cc415dbe8b58ede65a9e6f3c7b2458e97e.xlsm
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Size
84KB
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MD5
c691f4ebd6bd3bb119df46580d3e1856
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SHA1
04f7e0487d9d3f5312863d3555038a6c072db347
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SHA256
667b2a5c8b1d3f4f93e3a2c5e4dd70cc415dbe8b58ede65a9e6f3c7b2458e97e
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SHA512
c807dae75900c281eddf4d5a302dc57f8af3561947a154c0ba76f0fd68d47d3c3a3730deaa0cf05a9a9c85da1b338b24428d234419eadb3cb6cc38244390beb9
Malware Config
Extracted
http://test.la-boticaria.com/wp-content/xAQZIPYs1tavxAz/
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.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2944 552 rundll32.exe 68 -
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
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Blocklisted process makes network request 2 IoCs
flow pid Process 43 2152 rundll32.exe 44 2152 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 2944 rundll32.exe 1844 rundll32.exe -
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 552 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2152 rundll32.exe 2152 rundll32.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE 552 EXCEL.EXE -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 552 wrote to memory of 2944 552 EXCEL.EXE 72 PID 552 wrote to memory of 2944 552 EXCEL.EXE 72 PID 552 wrote to memory of 2944 552 EXCEL.EXE 72 PID 2944 wrote to memory of 1844 2944 rundll32.exe 73 PID 2944 wrote to memory of 1844 2944 rundll32.exe 73 PID 2944 wrote to memory of 1844 2944 rundll32.exe 73 PID 1680 wrote to memory of 2152 1680 rundll32.exe 75 PID 1680 wrote to memory of 2152 1680 rundll32.exe 75 PID 1680 wrote to memory of 2152 1680 rundll32.exe 75
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\667b2a5c8b1d3f4f93e3a2c5e4dd70cc415dbe8b58ede65a9e6f3c7b2458e97e.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:552 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe ..\einl.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\einl.ocx",DllRegisterServer3⤵
- Loads dropped DLL
PID:1844 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Zvrotuybrfk\otxwtp.zss",AbFIMOcUebqh4⤵
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Zvrotuybrfk\otxwtp.zss",DllRegisterServer5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:2152
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