Analysis
- max time kernel
149s - max time network
162s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
19/04/2022, 04:23
General
- Target ?i=1jiqlaygt.xlsm
- Size 83KB
- Sample220419-ez8llacadn
- SHA256 2243ada22b4c83d5f5470d40be8a9a88035c7264ad4404dad0776975a93da710
Score
10/10
Malware Config
Extracted
Language
-
xlm4.0
Source
URLs
-
xlm40.dropper
http://mail.emilyanncain.com/cgi-bin/A7NT3ENvn/
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- 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 14 IoCs
- Suspicious use of WriteProcessMemory 3 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\_i=1jiqlaygt.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWow64\rundll32.exeC:\Windows\SysWow64\rundll32.exe ..\erum.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r2⤵
- Process spawned unexpected child process
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
erum.ocx
memory/4084-130-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
memory/4084-131-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
memory/4084-132-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
memory/4084-133-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
memory/4084-134-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp