Analysis
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max time kernel
148s -
max time network
134s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
14-01-2022 07:57
Behavioral task
behavioral1
Sample
42c5bb56d6d7939abf3f29c32648b0239c79d8362d5b7634e96c8387b4376831.xlsm
Resource
win10-en-20211208
Behavioral task
behavioral2
Sample
42c5bb56d6d7939abf3f29c32648b0239c79d8362d5b7634e96c8387b4376831.xlsm
Resource
win10-en-20211208
General
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Target
42c5bb56d6d7939abf3f29c32648b0239c79d8362d5b7634e96c8387b4376831.xlsm
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Size
83KB
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MD5
98f9e5ee47c74bad8a3d8abdbd55e0f2
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SHA1
3961997d2fdec003121adccce3afe8a45d7d2b42
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SHA256
42c5bb56d6d7939abf3f29c32648b0239c79d8362d5b7634e96c8387b4376831
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SHA512
4f0eef38fc9d601fdc5732cd0b066fa11d554282bb6f49e4e1c78a7509f800af8fc9417445ef86394594efe72f9559a762a28b6d2140dfe64805690cd8719263
Malware Config
Extracted
http://moversphiladelphia.org/cmsxml/9ByFSxP/
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 2320 3052 rundll32.exe 67 -
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 3 IoCs
flow pid Process 42 1536 rundll32.exe 43 1536 rundll32.exe 44 1536 rundll32.exe -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 2320 rundll32.exe 3056 rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Fzohlmciyfe\hjmpq.ccv rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 3052 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1536 rundll32.exe 1536 rundll32.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE 3052 EXCEL.EXE -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3052 wrote to memory of 2320 3052 EXCEL.EXE 70 PID 3052 wrote to memory of 2320 3052 EXCEL.EXE 70 PID 3052 wrote to memory of 2320 3052 EXCEL.EXE 70 PID 2320 wrote to memory of 3056 2320 rundll32.exe 71 PID 2320 wrote to memory of 3056 2320 rundll32.exe 71 PID 2320 wrote to memory of 3056 2320 rundll32.exe 71 PID 3056 wrote to memory of 3948 3056 rundll32.exe 73 PID 3056 wrote to memory of 3948 3056 rundll32.exe 73 PID 3056 wrote to memory of 3948 3056 rundll32.exe 73 PID 3948 wrote to memory of 1536 3948 rundll32.exe 74 PID 3948 wrote to memory of 1536 3948 rundll32.exe 74 PID 3948 wrote to memory of 1536 3948 rundll32.exe 74
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\42c5bb56d6d7939abf3f29c32648b0239c79d8362d5b7634e96c8387b4376831.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe ..\erum.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\erum.ocx",DllRegisterServer3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3056 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Fzohlmciyfe\hjmpq.ccv",swBRMIf4⤵
- Suspicious use of WriteProcessMemory
PID:3948 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Fzohlmciyfe\hjmpq.ccv",DllRegisterServer5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1536
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