Analysis
- max time kernel
143s - max time network
164s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
18/01/2022, 23:49
General
- Target fa8506376e363d8dfa767e7e4da6b56b.xll
- Size 1.7MB
- Sample220118-3t17bseac8
- SHA256 09f0d56342e53b1af01eceb399c3f0bde5e61ff654d9117a57868466750e2e93
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\fa8506376e363d8dfa767e7e4da6b56b.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\JavaObjectReflectiveJ.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/3216-152-0x0000000180000000-0x000000018003C000-memory.dmp
memory/3468-134-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp
memory/3468-138-0x00007FF7D5110000-0x00007FF7D5120000-memory.dmp
memory/3468-137-0x00007FF7D5110000-0x00007FF7D5120000-memory.dmp
memory/3468-130-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp
memory/3468-133-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp
memory/3468-132-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp
memory/3468-131-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp
memory/3468-174-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp
memory/3468-175-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp
memory/3468-176-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp
memory/3468-177-0x00007FF7D7270000-0x00007FF7D7280000-memory.dmp