Analysis
- max time kernel
112s - max time network
120s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
25/01/2022, 15:54
General
- Target statement[2022.01.25_13-45].xll
- Size 5.5MB
- Sample220125-tcn11aacgr
- SHA256 aece741a4e2ad4699b9cc2dbbfeecfb0761a08eae79dfe01af48b18151dabe00
Malware Config
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 4 IoCs
- Loads dropped DLL 4 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\statement[2022.01.25_13-45].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\OfStransferW.dll , trueks2⤵
- Process spawned unexpected child process
- Loads dropped DLL
-
-
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Users\Admin\OfStransferW.dll,trueks {C8463963-92D2-4C96-A7FA-F8B26A488B5E}1⤵
- Loads dropped DLL
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3616-270-0x0000021D2C980000-0x0000021D2CACB000-memory.dmp
memory/3616-269-0x0000021D2C980000-0x0000021D2CACB000-memory.dmp
memory/3616-268-0x0000021D2C980000-0x0000021D2CACB000-memory.dmp
memory/3616-264-0x0000000295800000-0x000000029582A000-memory.dmp
memory/3708-120-0x00007FFA73860000-0x00007FFA73870000-memory.dmp
memory/3708-119-0x00007FFA73860000-0x00007FFA73870000-memory.dmp
memory/3708-132-0x00007FFA704F0000-0x00007FFA70500000-memory.dmp
memory/3708-118-0x00007FFA73860000-0x00007FFA73870000-memory.dmp
memory/3708-121-0x00007FFA73860000-0x00007FFA73870000-memory.dmp
memory/3708-131-0x00007FFA704F0000-0x00007FFA70500000-memory.dmp
memory/3708-124-0x00007FFA73860000-0x00007FFA73870000-memory.dmp
memory/3708-285-0x00007FFA73860000-0x00007FFA73870000-memory.dmp
memory/3708-286-0x00007FFA73860000-0x00007FFA73870000-memory.dmp
memory/3708-287-0x00007FFA73860000-0x00007FFA73870000-memory.dmp
memory/3708-288-0x00007FFA73860000-0x00007FFA73870000-memory.dmp