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

Static analysis result for SHA-256 818c65477e5a73e8…

MALICIOUS

Office (OOXML) / .DOC

398.3 KB Created: 2025-02-28 10:47:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 62d6e173c3f8aa341a9a6468356ec793 SHA-1: cdd9b385dda0ac7dc4773abd12a04113bad19e9a SHA-256: 818c65477e5a73e8fbed8a7f516a69b3002a56bf5ee5b1a9035c1ff82690be93
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample exhibits characteristics of a malicious OOXML document, specifically triggering heuristics for remote template injection and external relationships. The embedded OLE object and associated EMF files suggest the presence of a secondary payload or exploit. The primary IOC is the URL associated with the remote template injection, which is likely used to download and execute a malicious payload.

Heuristics 5

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://kutt.ar-email.com.br/TRRFYn?&weekender) — 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://kutt.ar-email.com.br/TRRFYn?&weekender
  • 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://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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
ccf0e5a5aa96437ede1f486276537b878e316a4980973180bbedc76a49cd56fe		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 265728 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.97, consistent with packed or encrypted content.
emf_00.emf
4ccc87c59b2c23065514d9ed6c9b2c7e5a31b7dc6dd6251e0e0c4def712299d0		 ooxml-emf OOXML EMF part: word/media/image1.emf 56488 bytes
emf_01.emf
a8faf60018d37c3f899ca7b7450c5ad27baa1c07227eec1cf63564059f73f09f		 ooxml-emf OOXML EMF part: word/media/image2.emf 1454420 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.