MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to lead users to harmful sites. Specifically, it links to `https://cctraff.ru/123?utm_term=hunter+dozier+fangraphs`, which is flagged as a malicious redirector. The presence of embedded URLs and the ML classifier's high confidence score support the assessment of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://cctraff.ru/123?utm_term=hunter+dozier+fangraphs In PDF document text
- https://jexolelogirif.weebly.com/uploads/1/3/4/9/134901145/sumuzerejilik.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/e50886c2-85ac-4e1e-b164-8805046f5d54/30422809290.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/97568532-be82-4a3a-9d62-fec8877ea8ab/education_policy_memo_example.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3dd351f0-6449-4b5f-957d-45c262a7fc6c/warframe_best_dagger_stance.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3cb22d47-b475-4837-849a-faaa072d5e2e/gloomspite_gitz_battletome_free_down.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc29eebabaecd33182d3b3b/t/5fc3eff69ee0f32b87cd15f2/1606676471999/tivesuja.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b239321d-da50-4bf2-acd7-59cd03759b1a/46948758748.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/486d477b-92a3-431c-a3b1-b13229c00bdd/timuminifawuzeba.pdfIn PDF document text
- https://s3.amazonaws.com/mamibis/dufuwawafarokitagika.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc66b26c30a162e0c7861d2/t/5fc91c327e4f21439027e324/1607015482468/turbo_stars_hack_appvn.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3cecfbaa-51df-48d8-a029-67ebc49e617e/43054296550.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/37735392-23d0-4a65-9156-9bf15deaf982/84_the_enthalpy_of_neutralization_of_phosphoric_acid_lab_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1c3744bf-0d56-4b4f-be2c-6033dde0b8e3/zizawatewupabo.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc16b4168612547ed61cedd/t/5fcc04743ff1011540dce701/1607206005573/xatediwenexakomijunuvidej.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_off0000d0dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0DC | 5280 bytes |
SHA-256: fa7a353280f6107560231e88034ecf236fa9cd6666056374fed4967649390a16 |
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font_01_sfnt_off0000e2d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2D9 | 10876 bytes |
SHA-256: 64ffff8ca8bb555663c8bf804835c4dab04684ca1987bc30e8d4590136e970e2 |
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