Analysis
- max time kernel
138s - max time network
155s - platform
windows10-1703_x64 - resource
win10-20220812-en - resource tags
- submitted
10/11/2022, 21:09
General
- Target 3fb6e3c6eb2131914a0c6c13536fce6644ad6de554c6470b509e3c000f0ff1ca.xls
- Size 91KB
- Sample221110-zzeczagabk
- SHA256 3fb6e3c6eb2131914a0c6c13536fce6644ad6de554c6470b509e3c000f0ff1ca
Score
10/10
Malware Config
Extracted
Language
-
xlm4.0
Source
URLs
-
xlm40.dropper
http://www.vinyz.com/cache/rqWV/
-
xlm40.dropper
http://yuanliao.raluking.com/1eq5o7/gHrTM8YilZz0quKt/
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Downloads MZ/PE file
- 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 8 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\3fb6e3c6eb2131914a0c6c13536fce6644ad6de554c6470b509e3c000f0ff1ca.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1728-116-0x00007FFCDF550000-0x00007FFCDF560000-memory.dmp
memory/1728-117-0x00007FFCDF550000-0x00007FFCDF560000-memory.dmp
memory/1728-118-0x00007FFCDF550000-0x00007FFCDF560000-memory.dmp
memory/1728-119-0x00007FFCDF550000-0x00007FFCDF560000-memory.dmp
memory/1728-128-0x00007FFCDB9E0000-0x00007FFCDB9F0000-memory.dmp
memory/1728-129-0x00007FFCDB9E0000-0x00007FFCDB9F0000-memory.dmp