MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files. The primary malicious URL is `https://ttraff.cc/pify?keyword=equivalent+fractions+and+decimals+worksheets+4th+grade`, which is likely used to redirect the user to a malicious site. The document body text, while appearing to be educational material, is likely a lure to encourage clicks on the malicious link.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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.cc/pify?keyword=equivalent+fractions+and+decimals+worksheets+4th+grade In PDF document text
- http://files.mysticfighters.com/uploads/1/3/2/6/132680926/baxalumijomagopa.pdfIn PDF document text
- http://files.electrikhana.org/uploads/1/3/0/8/130873922/2ab63c49d07ff6.pdfIn PDF document text
- http://belosapo.kitsbbqexpertsonline.com/uploads/1/3/1/4/131407815/1049197.pdfIn PDF document text
- http://wexasumo.redwordediting.com/uploads/1/3/0/8/130814328/c70ada79a6.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/1/0431/1128/4893/files/55469614473.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/8689/9350/files/the_beatles_something_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4629/6982/files/18799477750.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0900/5978/files/nuzebiwomisip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6118/2617/files/suxejedubokezikuser.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2924/9694/files/teori_indeks_pembangunan_manusia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8735/4270/files/pdf_file_to_word_converter_software.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5322/5883/files/effective_communication_skills_workbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4213/6476/files/zilubup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4487/2085/files/angular_datepicker_directive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0599/1321/files/62578084279.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8577/5519/files/gegad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6427/9718/files/60840938662.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_off000063ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63AB | 5820 bytes |
SHA-256: 8670e2dd0c9e0707575ece1e5c859b82a32c435eea9985a8182ad0590dae66c3 |
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font_01_sfnt_off0000776e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x776E | 9972 bytes |
SHA-256: 4207120c6219b852f1bd22cbfdb4109d22226aa40091c28f12780cfe751f53d2 |
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