MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to a malicious URL, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains a URL that appears to be a lure for educational material. The presence of numerous external PDF links suggests a link farm or phishing attempt. No scripts were extracted, but the embedded link functionality is the primary attack vector.
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/wb?keyword=manual%20comunicare%20in%20limba%20romana%20clasa%203 In PDF document text
- http://files.beingfrankblog.com/uploads/1/3/1/4/131407549/c68ab8b55c44f2.pdfIn PDF document text
- http://juzon.lightoftheworldcoaching.com/uploads/1/3/0/7/130775405/fabupolin_jetazegodubez_lopega_kaboxaku.pdfIn PDF document text
- http://files.womenspeakup.org/uploads/1/3/0/7/130775109/zodowopixikem.pdfIn PDF document text
- http://bukimilu.mccannpetgroup.com/uploads/1/3/0/8/130814297/8806225.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/1/0453/9963/8184/files/zefajexuxolinibami.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8180/8549/files/giropuratakuxoruzo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8887/9521/files/ball_mill_process.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1974/7999/files/systematic_and_unsystematic_risk_in_financial_management.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/6190/7351/files/begum_rokeya_university_admission_circular_2020_20.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8180/9558/files/ielts_vocabulary_list_for_listening.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/3564/4319/files/bobina_de_tesla_principios_fisicos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6356/5718/files/91849778782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7747/6260/files/tuwiroveranogape.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4888/5662/files/pojebadunujakakugegesiziz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5817/5893/files/rezajisupul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8275/9836/files/italy_travel_guide_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3059/3192/files/697257753.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F3D | 5256 bytes |
SHA-256: 1cf6003d7f5ea9a4479d6ee9535db0dc2e6eb8124149568b22e3d290573658c7 |
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font_01_sfnt_off000070fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70FB | 10780 bytes |
SHA-256: f2c43b42b9c78577cd725dfba5a3d43570f2d3c8dfc76607f539ad1697f9ec7b |
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font_02_sfnt_off0000933a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x933A | 16344 bytes |
SHA-256: dc620336aa769c766927a552749f6283a30952bf3238451f386faf844582b0a6 |
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