Analysis
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max time kernel
146s -
max time network
148s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
16-07-2021 13:16
Behavioral task
behavioral1
Sample
purch_details_7683561.xlsm
Resource
win7v20210410
Behavioral task
behavioral2
Sample
purch_details_7683561.xlsm
Resource
win10v20210408
General
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Target
purch_details_7683561.xlsm
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Size
118KB
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MD5
4adb1c704a4a80ecb81c64a434668532
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SHA1
2062f59fffc47e4e9bcd54617e41e5cbca9299f2
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SHA256
42e23ef70fd55982c25ce5bd3a21d8442fe1412693c578c6a27c6d852570ea82
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SHA512
1a22f35118c728f91a59889c54bef878ff4f4d04f82abb926415ee8730618e9f0ef83dc70f52d579b8b4157bca380b8a23ef3e1a0a34569950ff363a4d8b6862
Malware Config
Extracted
http://162.248.225.95/d.php
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 772 416 regsvr32.exe EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEdescription 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
Processes:
EXCEL.EXEpid process 416 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 416 EXCEL.EXE 416 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE 416 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 416 wrote to memory of 772 416 EXCEL.EXE regsvr32.exe PID 416 wrote to memory of 772 416 EXCEL.EXE regsvr32.exe
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\purch_details_7683561.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\regsvr32.exeregsvr32 -slient ..\zvbxnx.dll2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/416-114-0x00007FF701050000-0x00007FF704606000-memory.dmpFilesize
53.7MB
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memory/416-115-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmpFilesize
64KB
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memory/416-116-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmpFilesize
64KB
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memory/416-117-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmpFilesize
64KB
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memory/416-118-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmpFilesize
64KB
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memory/416-121-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmpFilesize
64KB
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memory/416-122-0x00007FFF9B2C0000-0x00007FFF9C3AE000-memory.dmpFilesize
16.9MB
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memory/416-123-0x00007FFF993C0000-0x00007FFF9B2B5000-memory.dmpFilesize
31.0MB
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memory/772-257-0x0000000000000000-mapping.dmp