Office (OOXML) / .DOC malware analysis — malicious · 18bd288af3e951ee

MALICIOUS

Office (OOXML) / .DOC

332.2 KB Created: 2024-08-09 12:55:00 UTC Authoring application: Microsoft Office Word 12.0000

MD5: 0ec83c9aa287d7e361600bb0294deaed SHA-1: 2aee42f75761676a082cb62e07d877531435b2d0 SHA-256: 18bd288af3e951eed92f48342f648f382cec76f532e35d8531422483c6ee18d9

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample exhibits characteristics of a malicious document, specifically remote template injection and an embedded OLE object, which are often used to download and execute secondary payloads. The presence of the URL https://ir.cx/EswAU strongly suggests a download attempt. While no scripts were directly extracted, the combination of heuristics points towards an attempt to exploit the document format for initial execution.

Heuristics 4

Remote template injection high OOXML_REMOTE_TEMPLATE

Document references a remote template URL (https://ir.cx/EswAU) — 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://ir.cx/EswAU
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://ir.cx/EswAU
- 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
- https://www.linkedin.com/in/renaalyssa-pambuan-b651291b5

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ooxml_oleobject_00.bin` `3c2c50583e6ee9415417bc71d27e1ddf8952df30aca380ad4ea556dab0c1e15c`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/oleObject1.bin	1590784 bytes
`ooxml_oleobject_01.bin` `3aad3e92afe0e306731956b7d9be488cd5ae8821a346fd5ac2144519ad804694`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_Worksheet1.xlsx	22822 bytes
`emf_00.emf` `6bea716fb9a6b3d4917c517ad7af02d4e1ec81f4f37c4916eee3136cc8088b90`	ooxml-emf	OOXML EMF part: word/media/image2.emf	25476 bytes
`emf_01.emf` `2223ffa25f96a23586a4b510de25580a87574cca91df73b098fd10fda35a56eb`	ooxml-emf	OOXML EMF part: word/media/image1.emf	1505804 bytes

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