Analysis
- max time kernel
133s - max time network
152s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
28/01/2022, 09:05
General
- Target 7e2a361d904e56e56ebdc4c4439e77f63246ae4276f573ad5b5427a0658fc5a3.xll
- Size 1.7MB
- Sample220128-k2h2lsacfq
- SHA256 7e2a361d904e56e56ebdc4c4439e77f63246ae4276f573ad5b5427a0658fc5a3
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 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 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\7e2a361d904e56e56ebdc4c4439e77f63246ae4276f573ad5b5427a0658fc5a3.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\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/712-119-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/712-128-0x00007FFEEFFC0000-0x00007FFEEFFD0000-memory.dmp
memory/712-129-0x00007FFEEFFC0000-0x00007FFEEFFD0000-memory.dmp
memory/712-115-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/712-118-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/712-117-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/712-116-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/712-285-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/712-286-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/712-287-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/712-288-0x00007FFEF3A30000-0x00007FFEF3A40000-memory.dmp
memory/2024-256-0x0000000180000000-0x000000018003C000-memory.dmp