Analysis
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max time kernel
41s -
max time network
50s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
02-07-2024 22:00
Behavioral task
behavioral1
Sample
6b997e0f1f6a7967d7d6884a10d0a689a3b3ceb9a9a42ec9a4d159372e540ce2.xls
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
6b997e0f1f6a7967d7d6884a10d0a689a3b3ceb9a9a42ec9a4d159372e540ce2.xls
Resource
win10v2004-20240508-en
General
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Target
6b997e0f1f6a7967d7d6884a10d0a689a3b3ceb9a9a42ec9a4d159372e540ce2.xls
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Size
614KB
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MD5
35c38f3878081f8875b196a8d8e252ea
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SHA1
045b80614ea99d88ee2437dd9438271ac0ed038b
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SHA256
6b997e0f1f6a7967d7d6884a10d0a689a3b3ceb9a9a42ec9a4d159372e540ce2
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SHA512
e2d4f36d52273a163d839a14bca73f66d13c52c227dd363a4fa5c987c166e3e6921887231c9e0b5a2931fd990dd1641203cab8c1418e1ec2d09367a50f6af030
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SSDEEP
12288:vWs20Typ2io4AeboqyN5+uAJPkDj9s/qYXJL9DwbQBLj:djY2Yr9Pj
Malware Config
Signatures
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Process spawned suspicious child process 1 IoCs
This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.
Processes:
DW20.EXEdescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3200 1392 DW20.EXE EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
dwwin.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dwwin.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dwwin.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
dwwin.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dwwin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1392 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
EXCEL.EXEpid process 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE 1392 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEDW20.EXEdescription pid process target process PID 1392 wrote to memory of 3200 1392 EXCEL.EXE DW20.EXE PID 1392 wrote to memory of 3200 1392 EXCEL.EXE DW20.EXE PID 3200 wrote to memory of 1244 3200 DW20.EXE dwwin.exe PID 3200 wrote to memory of 1244 3200 DW20.EXE dwwin.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\6b997e0f1f6a7967d7d6884a10d0a689a3b3ceb9a9a42ec9a4d159372e540ce2.xls"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1392 -
C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 42962⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:3200 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 42963⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:1244