Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
18/01/2022, 21:36
General
- Target FF-1642541127.xll
- Size 1.7MB
- Sample220118-1gdt6adecl
- 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 4 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\FF-1642541127.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
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Downloads
memory/1440-137-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/1440-140-0x00007FFF29F50000-0x00007FFF29F60000-memory.dmp
memory/1440-141-0x00007FFF29F50000-0x00007FFF29F60000-memory.dmp
memory/1440-133-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/1440-136-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/1440-135-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/1440-134-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/1440-177-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/1440-178-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/1440-179-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/1440-180-0x00007FFF2C470000-0x00007FFF2C480000-memory.dmp
memory/2260-155-0x0000000180000000-0x000000018003C000-memory.dmp