Analysis
- max time kernel
110s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
19/01/2022, 00:00
General
- Target f355eb875cebdf6418598393987aba03.xll
- Size 1.7MB
- Sample220119-aaf3tsebcq
- SHA256 964e1ff84b5c231a5176e2e4425d1e8b9186f0b62c02d492505872d48f6dd58b
Malware Config
Extracted
-
xlm4.0
Signatures
- Bazar Loader
Detected loader normally used to deploy BazarBackdoor malware.
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Bazar/Team9 Loader payload 1 IoCs
- Loads dropped DLL 3 IoCs
- 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 FindShellTrayWindow 2 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\f355eb875cebdf6418598393987aba03.xll"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\rundll32.exerundll32 C:\Users\Admin\JavaObjectReflectiveI.dll , dopt2⤵
- Process spawned unexpected child process
- Loads dropped DLL
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1560-137-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/1560-140-0x00007FFF29630000-0x00007FFF29640000-memory.dmp
memory/1560-141-0x00007FFF29630000-0x00007FFF29640000-memory.dmp
memory/1560-133-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/1560-136-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/1560-135-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/1560-134-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/1560-177-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/1560-178-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/1560-179-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/1560-180-0x00007FFF2BA10000-0x00007FFF2BA20000-memory.dmp
memory/3704-146-0x0000000180000000-0x000000018003C000-memory.dmp