Analysis
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max time kernel
131s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
19/01/2022, 00:14
Static task
static1
Behavioral task
behavioral1
Sample
9cc7d65402daa75068c6b5a0386c556f.xll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
9cc7d65402daa75068c6b5a0386c556f.xll
Resource
win10v2004-en-20220112
General
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Target
9cc7d65402daa75068c6b5a0386c556f.xll
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Size
1.7MB
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MD5
9cc7d65402daa75068c6b5a0386c556f
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SHA1
b2cbe7a2ea5aebeac773fa93fae8a36f37f8700e
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SHA256
3e4533d0e092a0a8c35ea248153062fe54e1a38a4aea9b627de619ad53fe90b3
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SHA512
4e107443f520e2c4fd6f99a8dda26789208c8e2016eae97955c2d5e9bde743b0d061bfd3fd25c021cc368ef61b1206d6e3051ba6b538935813042ab205ff2756
Malware Config
Extracted
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 2084 2816 rundll32.exe 52 -
Bazar/Team9 Loader payload 1 IoCs
resource yara_rule behavioral2/memory/2084-154-0x0000000180000000-0x000000018003C000-memory.dmp BazarLoaderVar5 -
Blocklisted process makes network request 1 IoCs
flow pid Process 36 2084 rundll32.exe -
Loads dropped DLL 3 IoCs
pid Process 2816 EXCEL.EXE 2816 EXCEL.EXE 2084 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 opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE 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 -
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 2816 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 2816 EXCEL.EXE 2816 EXCEL.EXE 2816 EXCEL.EXE 2816 EXCEL.EXE 2816 EXCEL.EXE 2816 EXCEL.EXE 2816 EXCEL.EXE 2816 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2816 wrote to memory of 2084 2816 EXCEL.EXE 59 PID 2816 wrote to memory of 2084 2816 EXCEL.EXE 59
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\9cc7d65402daa75068c6b5a0386c556f.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:2816 -
C:\Windows\SYSTEM32\rundll32.exerundll32 C:\Users\Admin\JavaObjectReflectV.dll , dopt2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
PID:2084
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