Malicious Office (OOXML) / .DOC — malware analysis report

Static analysis result for SHA-256 7b4124737965003c…

MALICIOUS

Office (OOXML) / .DOC

78.9 KB Created: 2023-11-10 01:33:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: bb1286964c52849d205a233630248bd0 SHA-1: 82f6ed4c7d98a3ea7e226d7686ffd48e0bc9f16d SHA-256: 7b4124737965003c25920ebe666e94257a50f74afcb1a05c3bb4ad78beaf1b32
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The OOXML document contains heuristics indicating remote template injection and external relationships, pointing to the URL http://gf.to/ZylwWKDsM. This suggests the document is designed to lure the user into downloading and executing a secondary payload from this external source, likely via a spearphishing attachment. The presence of an embedded OLE object further supports the possibility of malicious content execution.

Heuristics 5

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://gf.to/ZylwWKDsM) — 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: http://gf.to/ZylwWKDsM
  • Embedded OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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 http://gf.to/ZylwWKDsM
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
6fc5394e7243b54602bc76cb295dfccd7fe83fd0440e674aede8e4e9d917559e		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 34304 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.69, consistent with packed or encrypted content.
emf_00.emf
c0da66b866cc999aee20456c2eee3eefc05046b8f5df3755f95fecb85f9f8be5		 ooxml-emf OOXML EMF part: word/media/image1.emf 1505804 bytes

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