Analysis
- max time kernel
121s - max time network
124s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
28/01/2022, 09:14
General
- Target 2a44ed0a9fda586147fb82a9927090f745e68887712a29d34e4bb1c52a83fba3.xll
- Size 1.7MB
- Sample220128-k7sg8sbaa5
- SHA256 2a44ed0a9fda586147fb82a9927090f745e68887712a29d34e4bb1c52a83fba3
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 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\2a44ed0a9fda586147fb82a9927090f745e68887712a29d34e4bb1c52a83fba3.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\JavaObjectReflectR.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/2484-121-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/2484-128-0x00007FF9E4750000-0x00007FF9E4760000-memory.dmp
memory/2484-129-0x00007FF9E4750000-0x00007FF9E4760000-memory.dmp
memory/2484-115-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/2484-118-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/2484-117-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/2484-116-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/2484-277-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/2484-278-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/2484-279-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/2484-280-0x00007FF9E80C0000-0x00007FF9E80D0000-memory.dmp
memory/3852-259-0x0000000180000000-0x000000018003C000-memory.dmp