Analysis
- max time kernel
134s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
10/04/2024, 07:51
Behavioral task
behavioral1
Sample
b5c001cbcd72b919e9b05e3281cc4e4914fee0748b3d81954772975630233a6e.docm
Resource
win7-20240221-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b5c001cbcd72b919e9b05e3281cc4e4914fee0748b3d81954772975630233a6e.docm
Resource
win10v2004-20240226-en
8 signatures
150 seconds
General
- Target b5c001cbcd72b919e9b05e3281cc4e4914fee0748b3d81954772975630233a6e.docm
- Size 857KB
- Sample240410-jpyqvsgf39
- SHA256 b5c001cbcd72b919e9b05e3281cc4e4914fee0748b3d81954772975630233a6e
- MD5 e2a3edc708016316477228de885f0c39
- SHA1 3aa803baf5027c57ec65eb9b47daad595ba80bac
- SHA512 f940a194241586f3c5b179aa107592f41e3832f5174d9ff2d951d3f0354cfd59e5b2502daef595aa9e2849c7aa23b39085b3f8c31eecaafa05f97483808510c6
- SSDEEP 24576:DKkIwZMuhdVmTmS6r5MvUw05nUIkMqNHMt7IAAG:WkIwZMuh2Wqvd05nUBMHtkAAG
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\OCu3HBg7gyI9aUaB.vbs WINWORD.EXE - 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.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 2904 1668 DW20.EXE 92 - Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dwwin.exe - Enumerates system info in registry 2 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE 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 2 IoCs
pid Process 1668 WINWORD.EXE 1668 WINWORD.EXE - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1668 WINWORD.EXE 1668 WINWORD.EXE 1668 WINWORD.EXE 1668 WINWORD.EXE - Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1668 WINWORD.EXE 1668 WINWORD.EXE 1668 WINWORD.EXE 1668 WINWORD.EXE - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1668 wrote to memory of 2904 1668 WINWORD.EXE 108 PID 1668 wrote to memory of 2904 1668 WINWORD.EXE 108 PID 2904 wrote to memory of 4668 2904 DW20.EXE 109 PID 2904 wrote to memory of 4668 2904 DW20.EXE 109
Processes
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\b5c001cbcd72b919e9b05e3281cc4e4914fee0748b3d81954772975630233a6e.docm" /o ""1⤵
- Drops startup file
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1668 -
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 48082⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 48083⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:4668
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4160 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:81⤵PID:3616