Analysis
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max time kernel
145s -
max time network
140s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
20-07-2021 11:29
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE 00082925 -1y.doc
Resource
win7v20210410
Behavioral task
behavioral2
Sample
INVOICE 00082925 -1y.doc
Resource
win10v20210410
General
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Target
INVOICE 00082925 -1y.doc
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Size
1.0MB
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MD5
3347d22680185efb3cd73d55b55a5c6d
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SHA1
36f0afde99cdabe38dbe7c281b61c17b1ca41372
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SHA256
5f815bd7f39cccb4b92bea3d36861d6844eeea3307e86b237d794c660d1305c3
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SHA512
54cd4b8033702d2192fe8d860df7a092a23675e1bf6450f5cc3862346ef6f078b6b3de03da81d246284adf8f7a9362909fde5efa361ce9135e9c29f64a0461db
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.
Processes:
FLTLDR.EXEdescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 736 3176 FLTLDR.EXE WINWORD.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WINWORD.EXEdescription 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
Processes:
WINWORD.EXEdescription ioc process 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 WINWORD.EXE -
Modifies registry class 10 IoCs
Processes:
WINWORD.EXEdescription 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-1-15-2-3253989594-2889745714-786028635-3845866860-4167786061-1579960421-2110074440\Moniker = "oice_16_974fa576_32c1d314_2438" WINWORD.EXE Key created \Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-3253989594-2889745714-786028635-3845866860-4167786061-1579960421-2110074440\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_2438 WINWORD.EXE Key deleted \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_CLASSES\LOCAL SETTINGS\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\APPCONTAINER\MAPPINGS\S-1-15-2-3253989594-2889745714-786028635-3845866860-4167786061-1579960421-2110074440\CHILDREN WINWORD.EXE Key created \Registry\User\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-3253989594-2889745714-786028635-3845866860-4167786061-1579960421-2110074440 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-1-15-2-3253989594-2889745714-786028635-3845866860-4167786061-1579960421-2110074440\DisplayName = "OICE_16_974FA576_32C1D314_2438" 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_2438\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_2438\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_2438 WINWORD.EXE Key deleted \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-3253989594-2889745714-786028635-3845866860-4167786061-1579960421-2110074440 WINWORD.EXE -
NTFS ADS 1 IoCs
Processes:
WINWORD.EXEdescription ioc process File opened for modification C:\Users\Admin\AppData\Local\Temp\{4EF29555-F983-4F93-8AE7-7F655FE657D3}\abdtfhghgdghghœ.ScT:Zone.Identifier WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 3176 WINWORD.EXE 3176 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
WINWORD.EXEpid process 3176 WINWORD.EXE 3176 WINWORD.EXE 3176 WINWORD.EXE 3176 WINWORD.EXE 3176 WINWORD.EXE 3176 WINWORD.EXE 3176 WINWORD.EXE 3176 WINWORD.EXE 3176 WINWORD.EXE 3176 WINWORD.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
WINWORD.EXEdescription pid process target process PID 3176 wrote to memory of 736 3176 WINWORD.EXE FLTLDR.EXE PID 3176 wrote to memory of 736 3176 WINWORD.EXE FLTLDR.EXE
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\INVOICE 00082925 -1y.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
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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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Packages\oice_16_974fa576_32c1d314_2438\AC\Temp\FL3483.tmpMD5
4cf1d403f88613eea35faef346d1bb62
SHA1872a0db12e2ba2228920236d2b3eb4bce65e39be
SHA25621c54f22f1cf70b6601f7088b1824d5359a271c7fdab88102bf5bf0a4add2d69
SHA512333d15f26c2d723733496a2563a91288413a38c71914cc1c921fb1190422d683bcca9e3c325f9f5ad256fe56a80233e95bfe0bfac294263e07bf7b97922e3f00
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memory/736-305-0x0000000000000000-mapping.dmp
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memory/736-370-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB
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memory/736-322-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB
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memory/736-319-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB
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memory/736-316-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB
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memory/3176-117-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB
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memory/3176-123-0x00007FF81A3B0000-0x00007FF81C2A5000-memory.dmpFilesize
31.0MB
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memory/3176-122-0x00007FF81C2B0000-0x00007FF81D39E000-memory.dmpFilesize
16.9MB
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memory/3176-118-0x00007FF822020000-0x00007FF824B43000-memory.dmpFilesize
43.1MB
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memory/3176-119-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB
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memory/3176-114-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB
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memory/3176-116-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB
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memory/3176-115-0x00007FF800890000-0x00007FF8008A0000-memory.dmpFilesize
64KB