Analysis
- max time kernel
150s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
18/01/2022, 23:49
General
- Target 90628329c8fd992adf0ab9530698cc1e.xll
- Size 1.7MB
- Sample220118-3t2g4aeahl
- SHA256 7e2a361d904e56e56ebdc4c4439e77f63246ae4276f573ad5b5427a0658fc5a3
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
- Blocklisted process makes network request 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 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\90628329c8fd992adf0ab9530698cc1e.xll"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\rundll32.exerundll32 C:\Users\Admin\JavaObjectReflectC.dll , dopt2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1496-134-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1496-137-0x00007FFC6C330000-0x00007FFC6C340000-memory.dmp
memory/1496-138-0x00007FFC6C330000-0x00007FFC6C340000-memory.dmp
memory/1496-130-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1496-133-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1496-132-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1496-131-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1496-174-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1496-175-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1496-176-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1496-177-0x00007FFC6EC30000-0x00007FFC6EC40000-memory.dmp
memory/1676-152-0x0000000180000000-0x000000018003C000-memory.dmp