MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically `https://ttraff.ru/123?keyword=quadratic+function+practice+test`. This redirector is likely used to funnel victims to a phishing page or to download a second-stage payload. The presence of numerous other PDF links suggests a link farm or SEO poisoning tactic to increase visibility.
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.ru/123?keyword=quadratic+function+practice+test In PDF document text
- https://cdn-cms.f-static.net/uploads/4368227/normal_5f8788a1972ca.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380699/normal_5f920bb336829.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370780/normal_5f95d17271bcb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421341/normal_5f96cf63c0384.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369907/normal_5f8afdeb537c7.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/1/0483/7425/1671/files/clauses_of_purpose_result_and_concession.pdfIn PDF document text
- https://s3.amazonaws.com/fasanag/modimanorikisanulebazona.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8460/1752/files/42819487189.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/4247/9521/files/cheats_story_of_seasons_trio_of_towns.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0505/4919/4917/files/pearson_english_8.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2603/8433/files/orchid_show_chester_nj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1731/2152/files/29186642616.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7777/7061/files/h_p_lovecraft_stories.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0505/5565/0230/files/fanawopefowidazamixetuzu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0530/2168/files/ispoofer_pokemon_go_android_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/3466/3841/files/applock_fingerprint_lock_apk.pdfIn PDF document text
- https://s3.amazonaws.com/wibadinavosunom/46856090695.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1767/3636/files/tamilyogi_movies_download_malayalam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5376/8090/files/country_instrumental_music.pdfIn PDF document text
- https://s3.amazonaws.com/sorogamat/defying_gravity_glee_sheet_music_free.pdfIn PDF document text
- https://s3.amazonaws.com/jamokaroxoj/55538456779.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0480/8382/8900/files/27687076795.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_off00006789.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6789 | 5176 bytes |
SHA-256: 4b58d046b4b49b594245d7fdb05867e5d092c04aaa7d6362fd5d166c36bc0477 |
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font_01_sfnt_off00007934.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7934 | 9932 bytes |
SHA-256: 04f295933a714a71332d690f6680efd65010159a078d5637bd9c480ec66df3d0 |
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