Analysis
- max time kernel
134s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
19/01/2022, 00:14
General
- Target 1e39c36d3f4413987ad1355c51836263.xll
- Size 1.7MB
- Sample220119-ajcf1aebf3
- SHA256 3d96364b05eeca8c8e82542c15127c5c648177560e738afcd6160c22a5a4408c
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
- 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\1e39c36d3f4413987ad1355c51836263.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\JavaObjectReflectiveC.dll , dopt2⤵
- Process spawned unexpected child process
- Loads dropped DLL
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2000-134-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2000-137-0x00007FFD77120000-0x00007FFD77130000-memory.dmp
memory/2000-138-0x00007FFD77120000-0x00007FFD77130000-memory.dmp
memory/2000-130-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2000-133-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2000-132-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2000-131-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2000-174-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2000-175-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2000-176-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2000-177-0x00007FFD79310000-0x00007FFD79320000-memory.dmp
memory/2260-152-0x0000000180000000-0x000000018003C000-memory.dmp