Office (OOXML) / .DOC malware analysis — malicious · 0b8b68f159995d4c

MALICIOUS

Office (OOXML) / .DOC

240.2 KB Created: 2024-09-26 01:48:00 UTC Authoring application: Microsoft Office Word 12.0000

MD5: 0aa21e3880e6016cf48e0c0c38c5f753 SHA-1: 0a36f40ff304c0450b8ae22a0444fa8e5e70dd18 SHA-256: 0b8b68f159995d4c24fd93e6f3f8efc5ab6716e99219a248b44e92e15af393d6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample exhibits characteristics of a malicious OOXML document, including the use of remote templates and external relationships pointing to the URL https://a8s.app/DVyB6x. It also contains embedded OLE objects, which are often used to deliver secondary payloads. These factors suggest an attempt to exploit the document format to execute arbitrary code.

Heuristics 4

Remote template injection high OOXML_REMOTE_TEMPLATE

Document references a remote template URL (https://a8s.app/DVyB6x) — a common remote-template-injection vector used by Hancitor, Emotet and many phishing campaigns. Word can fetch and apply the remote template; macros in that template may execute depending on Office policy and trust state.
External relationship medium OOXML_EXTERNAL_REL

External target in word/_rels/settings.xml.rels: https://a8s.app/DVyB6x
Embedded OLE object medium OOXML_OLE_OBJECT

Document contains an embedded OLE object
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://a8s.app/DVyB6x
- http://schemas.openxmlformats.org/markup-compatibility/2006
- http://schemas.openxmlformats.org/officeDocument/2006/relationships
- http://schemas.openxmlformats.org/officeDocument/2006/math
- http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
- http://schemas.openxmlformats.org/wordprocessingml/2006/main
- http://schemas.microsoft.com/office/word/2006/wordml

Extracted artifacts 8

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ooxml_oleobject_00.bin` `88e9b766d95221784056207be1b59275d349153a673fea28483b8567dc1a80ee`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_97-2003_Worksheet2.xls	59904 bytes
`ooxml_oleobject_01.bin` `47cc3f33414734195e77d395a1cc87eb81cd7fdb4ea596a939a476a8ada20798`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_Worksheet1.xlsx	74534 bytes
`ooxml_oleobject_02.bin` `0e34a72b84d8ff7fed7eb9f2e15c4fd479d4e76a9169c94df61a9761fcd639e1`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_Worksheet2.xlsx	52175 bytes
`ooxml_oleobject_03.bin` `bf92c65195966ca7d4af8eaa21fbe595624befeffbbbd002159e552ef82276da`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_97-2003_Worksheet1.xls	152064 bytes
`emf_00.emf` `c475a3541e4ca355ae7329d826a5f9635b5ecc7b7a3a8a5476e16c24e83f1d1c`	ooxml-emf	OOXML EMF part: word/media/image4.emf	29568 bytes
`emf_01.emf` `bce0a286bced2fbeff65e8ac01c417689e1053dacba3ba473a3350acc3afde01`	ooxml-emf	OOXML EMF part: word/media/image3.emf	349384 bytes
`emf_02.emf` `601c0bd78909a01152a7a697af54ea37b90d893ddad21cdc55b5d7de12ed156c`	ooxml-emf	OOXML EMF part: word/media/image1.emf	131176 bytes
`emf_03.emf` `2a29434a2b22b9beb23f1e1f4146f8f400cfdef8c2799ac8d328b20d7a1b0d00`	ooxml-emf	OOXML EMF part: word/media/image2.emf	38272 bytes

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