MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to redirector infrastructure, specifically identified as a link farm and a malicious redirector. The primary redirector URL is 'https://ttraff.com/wb?keyword=8.4%20polar%20bonds%20and%20molecules%20worksheet', which is used to lure users to potentially malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely as a dropper for further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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ClamAV: Pdf.Dropper.Agent-9526382-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-9526382-0
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://ttraff.com/wb?keyword=8.4%20polar%20bonds%20and%20molecules%20worksheet In PDF document text
- http://files.norcalherp.com/uploads/1/3/1/6/131606719/4094825.pdfIn PDF document text
- http://files.centrepointecincinnati.com/uploads/1/3/1/4/131406413/e08b8.pdfIn PDF document text
- http://files.morriscountypca.org/uploads/1/3/1/4/131438427/sizerupuzix-moxasezoporap-futepokupowiw-xajolu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/bifazerekabilasolo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5746/3971/files/javorumaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2190/9662/files/natepebepefemimupepatet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0528/8352/files/xepilifitil.pdfIn PDF document text
- https://datefakifeba.files.wordpress.com/2020/07/77030654108.pdfIn PDF document text
- https://tudubopa.files.wordpress.com/2020/07/15220757.pdfIn PDF document text
- https://bidaleb.files.wordpress.com/2020/06/gemazagavuxoto.pdfIn PDF document text
- https://dulidegoli.files.wordpress.com/2020/07/11448941523.pdfIn PDF document text
- https://zuwisanupu.files.wordpress.com/2020/07/93858508819.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26450283228.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7916/4314/files/zugifubibojafe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8085/2383/files/52294740436.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1434/8197/files/luliwafepapenasezugifutaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7813/2636/files/33239844522.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vawis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9975/0560/files/92241145083.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/povumad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2816/0413/files/14860353577.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000098f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98F2 | 5664 bytes |
SHA-256: 853e0dc715eebd0d74311510eb2609d850e3a23ca8e43c785b8298927ab9c73f |
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font_01_sfnt_off0000ac11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC11 | 11100 bytes |
SHA-256: f24ffa5b6d7e8174daf16a847233cd47ee6518a51f38d4a9df71b9974a7d361d |
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