Analysis
- max time kernel
117s - max time network
136s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
22/01/2022, 14:33
Static task
static1
Behavioral task
behavioral1
Sample
2c2070acd612d96b786e7f8e5ace1fa0965649d4da600936b9f99bf79e331a72.xll
Resource
win7-en-20211208
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
2c2070acd612d96b786e7f8e5ace1fa0965649d4da600936b9f99bf79e331a72.xll
Resource
win10-en-20211208
0 signatures
0 seconds
General
- Target 2c2070acd612d96b786e7f8e5ace1fa0965649d4da600936b9f99bf79e331a72.xll
- Size 1.7MB
- Sample220122-rwtpgsbgfl
- SHA256 2c2070acd612d96b786e7f8e5ace1fa0965649d4da600936b9f99bf79e331a72
- MD5 006a3070d15f0cb6ae1ea39b510983bb
- SHA1 bfe6656b66937c29eca1870f23d0077219d1e5dc
- SHA512 ebf623feaf1e1f153790e2510887b38d777ff2d14f1dc71f86764cea8b940a6e1deeec390b861aa00252cf5264beb681039fc32eeaebea6b4820e99982a457a5
- MD5 SHA1 SHA512
Score
10/10
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.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 68 912 rundll32.exe 68 - Bazar/Team9 Loader payload 1 IoCs
resource yara_rule behavioral2/memory/68-261-0x0000000180000000-0x000000018003C000-memory.dmp BazarLoaderVar5 - Loads dropped DLL 3 IoCs
pid Process 912 EXCEL.EXE 912 EXCEL.EXE 68 rundll32.exe - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 912 EXCEL.EXE - Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 912 EXCEL.EXE 912 EXCEL.EXE 912 EXCEL.EXE 912 EXCEL.EXE 912 EXCEL.EXE 912 EXCEL.EXE 912 EXCEL.EXE 912 EXCEL.EXE - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 912 wrote to memory of 68 912 EXCEL.EXE 70 PID 912 wrote to memory of 68 912 EXCEL.EXE 70
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\2c2070acd612d96b786e7f8e5ace1fa0965649d4da600936b9f99bf79e331a72.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
PID:912 -
C:\Windows\SYSTEM32\rundll32.exerundll32 C:\Users\Admin\JavaObjectReflectiveB.dll , dopt2⤵
- Process spawned unexpected child process
- Loads dropped DLL
PID:68
-