Analysis
- max time kernel
161s - max time network
173s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
12/01/2022, 18:43
General
- Target HBPGX_982416.xlsm
- Size 84KB
- Sample220112-xcw86adfcm
- SHA256 c57fd2c02c895b4ae7bfd0dccf3721e4c979b931c8f1215e168678ce2c11b641
Malware Config
Extracted
-
xlm4.0
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xlm40.dropper
http://insertcatherreview.xyz/wp-includes/o23k5ted/
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Loads dropped DLL 2 IoCs
- Drops file in System32 directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of SetWindowsHookEx 12 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
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\HBPGX_982416.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe ..\adi.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\adi.ocx",DllRegisterServer3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Hxqzjvz\mbqrwhcbhgclz.cay",Skmht4⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/652-285-0x0000000000AE0000-0x0000000000B8E000-memory.dmp
memory/684-286-0x0000000001090000-0x00000000010B9000-memory.dmp
memory/2700-125-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-144-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-134-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-135-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-136-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-137-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-138-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-139-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-140-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-141-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-142-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-133-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-143-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-145-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-118-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp
memory/2700-124-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp
memory/2700-123-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-149-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-122-0x0000017385E50000-0x0000017385E52000-memory.dmp
memory/2700-121-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp
memory/2700-120-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp
memory/2700-119-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp