Analysis
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max time kernel
145s -
max time network
138s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
03/08/2021, 08:39
Static task
static1
Behavioral task
behavioral1
Sample
T31597377-Confirm-20210802-100016-Email-5007377.doc
Resource
win7v20210410
Behavioral task
behavioral2
Sample
T31597377-Confirm-20210802-100016-Email-5007377.doc
Resource
win10v20210410
General
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Target
T31597377-Confirm-20210802-100016-Email-5007377.doc
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Size
229KB
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MD5
5dda83e206429216662517f5f4ba7718
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SHA1
abbd782fa3cd388e66e7739b65abddfcaf0071fc
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SHA256
190a90d648e64c0f6c80a36bf00c5f2fdb8247260f5f38dfc13895b28f1c7fc2
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SHA512
c8d0e5461219e832a376396bd5270b1380cca65515a453c2c911f3c9355aa86a855d07d26ce015dd7ed106e3b0617b98d2a951cfb771187274a48d0231a300c1
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\WINWORD.EXE is not expected to spawn this process 2560 3256 FLTLDR.EXE 68 -
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 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 -
Enumerates system info in registry 2 TTPs 3 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 -
Modifies registry class 10 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2182660576-2854320420-2997909549-379273802-51576236-2006245776-2950604527\Moniker = "oice_16_974fa576_32c1d314_3821" WINWORD.EXE Key created \Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2182660576-2854320420-2997909549-379273802-51576236-2006245776-2950604527\Children WINWORD.EXE Key created \Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_3821 WINWORD.EXE Key deleted \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_CLASSES\LOCAL SETTINGS\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\APPCONTAINER\STORAGE\OICE_16_974FA576_32C1D314_3821\CHILDREN WINWORD.EXE Key deleted \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2182660576-2854320420-2997909549-379273802-51576236-2006245776-2950604527 WINWORD.EXE Key created \Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2182660576-2854320420-2997909549-379273802-51576236-2006245776-2950604527 WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2182660576-2854320420-2997909549-379273802-51576236-2006245776-2950604527\DisplayName = "OICE_16_974FA576_32C1D314_3821" WINWORD.EXE Key created \Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_3821\Children WINWORD.EXE Key deleted \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\oice_16_974fa576_32c1d314_3821 WINWORD.EXE Key deleted \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_CLASSES\LOCAL SETTINGS\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\APPCONTAINER\MAPPINGS\S-1-15-2-2182660576-2854320420-2997909549-379273802-51576236-2006245776-2950604527\CHILDREN WINWORD.EXE -
NTFS ADS 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Temp\{03242312-A427-4176-8658-13B543440474}\abdtfhghgdghgh.ScT:Zone.Identifier WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 3256 WINWORD.EXE 3256 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 3256 WINWORD.EXE 3256 WINWORD.EXE 3256 WINWORD.EXE 3256 WINWORD.EXE 3256 WINWORD.EXE 3256 WINWORD.EXE 3256 WINWORD.EXE 3256 WINWORD.EXE 3256 WINWORD.EXE 3256 WINWORD.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3256 wrote to memory of 2560 3256 WINWORD.EXE 76 PID 3256 wrote to memory of 2560 3256 WINWORD.EXE 76
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\T31597377-Confirm-20210802-100016-Email-5007377.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3256 -
C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE" C:\Program Files\Common Files\Microsoft Shared\GRPHFLT\PNG32.FLT2⤵
- Process spawned unexpected child process
PID:2560
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