Analysis
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max time kernel
122s -
max time network
153s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
19/01/2022, 01:00
Static task
static1
Behavioral task
behavioral1
Sample
09f0d56342e53b1af01eceb399c3f0bde5e61ff654d9117a57868466750e2e93.xll
Resource
win10-en-20211208
General
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Target
09f0d56342e53b1af01eceb399c3f0bde5e61ff654d9117a57868466750e2e93.xll
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Size
1.7MB
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MD5
fa8506376e363d8dfa767e7e4da6b56b
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SHA1
c2d9101667a55f430c0513cbf748be8723b9e245
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SHA256
09f0d56342e53b1af01eceb399c3f0bde5e61ff654d9117a57868466750e2e93
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SHA512
1074927abee15cfc9a51ab9cc160a8c339a7a2989399d5543ed2d00daa03b544b0d92d02eb35c8fad3ed037ae00e125619d587cfd3506322c337c56b21c15865
Malware Config
Signatures
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Bazar Loader
Detected loader normally used to deploy BazarBackdoor malware.
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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 1324 3736 rundll32.exe 68 -
Bazar/Team9 Loader payload 1 IoCs
resource yara_rule behavioral1/memory/1324-258-0x0000000180000000-0x000000018003C000-memory.dmp BazarLoaderVar5 -
Loads dropped DLL 3 IoCs
pid Process 3736 EXCEL.EXE 3736 EXCEL.EXE 1324 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\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 3736 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3736 EXCEL.EXE 3736 EXCEL.EXE 3736 EXCEL.EXE 3736 EXCEL.EXE 3736 EXCEL.EXE 3736 EXCEL.EXE 3736 EXCEL.EXE 3736 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3736 wrote to memory of 1324 3736 EXCEL.EXE 72 PID 3736 wrote to memory of 1324 3736 EXCEL.EXE 72
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\09f0d56342e53b1af01eceb399c3f0bde5e61ff654d9117a57868466750e2e93.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:3736 -
C:\Windows\SYSTEM32\rundll32.exerundll32 C:\Users\Admin\JavaObjectReflectiveJ.dll , dopt2⤵
- Process spawned unexpected child process
- Loads dropped DLL
PID:1324
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