Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-10-2024 07:00
Static task
static1
Behavioral task
behavioral1
Sample
CLOSURE.rtf
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
CLOSURE.rtf
Resource
win10v2004-20241007-en
General
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Target
CLOSURE.rtf
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Size
740KB
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MD5
f26bb424ef01ec203239aa3a6856faca
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SHA1
43368a01d4d0842df97c91a2aa09975f0f90a3e9
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SHA256
f40201743250cd62b21ea6a53c9b5cac0cbe8e7eb36b4b899321a63e5ab589ac
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SHA512
fba9c8b8003e92a4d4c620f8d636bb11c47e55b5277d6fd796687b4e5aeaf761156c7e65024868399213c65bd2a5e8db5836716b58a6c8a05f6516f3f26262f4
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SSDEEP
6144:DwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwA3wyM+3v2jBQK50iMKt6:p
Malware Config
Signatures
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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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.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 -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription 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 -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 3956 WINWORD.EXE 3956 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 3956 WINWORD.EXE 3956 WINWORD.EXE 3956 WINWORD.EXE 3956 WINWORD.EXE 3956 WINWORD.EXE 3956 WINWORD.EXE 3956 WINWORD.EXE 3956 WINWORD.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\CLOSURE.rtf" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3956
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
245KB
MD5f883b260a8d67082ea895c14bf56dd56
SHA17954565c1f243d46ad3b1e2f1baf3281451fc14b
SHA256ef4835db41a485b56c2ef0ff7094bc2350460573a686182bc45fd6613480e353
SHA512d95924a499f32d9b4d9a7d298502181f9e9048c21dbe0496fa3c3279b263d6f7d594b859111a99b1a53bd248ee69b867d7b1768c42e1e40934e0b990f0ce051e
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Filesize
16B
MD5d29962abc88624befc0135579ae485ec
SHA1e40a6458296ec6a2427bcb280572d023a9862b31
SHA256a91a702aab9b8dd722843d3d208a21bcfa6556dfc64e2ded63975de4511eb866
SHA5124311e87d8d5559248d4174908817a4ddc917bf7378114435cf12da8ccb7a1542c851812afbaf7dc106771bdb2e2d05f52e7d0c50d110fc7fffe4395592492c2f
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
Filesize1KB
MD5cdf900022a76f7f2706649ac7e879232
SHA1bf7f7dc6c77c6641b473a9af1f0af2de56cc438b
SHA256881bd7c06eb495450cd54869975614b757f0baad02c71ed73807b62eae651597
SHA5127b834106d9e77698fca60b9d7ba5bae312c44a84713b6b572f2c9ab3a317cde5642d7f12b082a6b60d0ba3974b756beae7983c5babfc136ebffc6eb72c5ca9ed