Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 3edb940754fd179d…

MALICIOUS

Office (OOXML)

21.4 KB Created: 2018-05-18 14:41:00 UTC Authoring application: Microsoft Office Word 14.0000 First seen: 2019-05-31
MD5: 49d56e047cb467f2da6a4956b5a3fedf SHA-1: d89db1a99a4338ed24569e2ffd4b1d84999ac050 SHA-256: 3edb940754fd179dede6daff45b0fd932d419c49a30ee00faaf60f5abc25b4c9
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document presents itself as a notification of an Apple ID charge, urging the recipient to contact a phone number for resolution. This is a common callback phishing tactic. The presence of an external hyperlink targeting a free TLD, specifically 'https://appleid.apple.com-singnin-7818.tk/?bs', strongly indicates a phishing attempt designed to lure users into a fraudulent interaction.

Heuristics 4

  • OOXML external relationship targets a free/throwaway TLD high OOXML_EXTERNAL_REL_FREE_TLD
    Document has an external relationship whose target host is on a free, no-registration TLD (Freenom .ml/.ga/.cf/.gq/.tk). Legitimate business documents do not link out to a Freenom throwaway domain; these are a near-zero-FP phishing / BEC delivery tell (e.g. an RFQ/invoice lure pointing at 'shareddocuments.ml/RFQ'). The relationship may be a hyperlink, a remote template, or an external OLE object.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • External hyperlinks (3) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 3 external hyperlinks — clickable URLs are stored as external relationships. First target: https://appleid.apple.com-singnin-7818.tk/?bs
  • 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://appleid.apple.com-singnin-7818.tk/?bs Document hyperlink
    • https://ncxms.io/ln8cUDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)

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