MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) disguised as a free download for 'maths notes'. This suggests a phishing or scam attempt to trick users into visiting malicious sites or downloading further malware. The ML classifier also strongly indicated maliciousness.
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/pify?keyword=bsc+2nd+year+maths+notes+pdf+download In PDF document text
- http://kekiro.photosandburritos.com/uploads/1/3/1/3/131398140/pevorefeg_naperil_kelejebebisazob.pdfIn PDF document text
- http://files.leilahmoondances.com/uploads/1/3/1/3/131398097/tufafenimo_ganux.pdfIn PDF document text
- http://files.camiltyequestrian.co.uk/uploads/1/3/1/4/131455722/1f10d0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8499/5991/files/37327348594.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2087/0044/files/basic_electrical_engineering_by_bl_theraja_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nepel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nubizasijimowedemo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8411/8171/files/vurid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3631/9639/files/mezelimiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0165/1105/files/tinker_bell_2008.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8278/4676/files/basic_node_js_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2468/4955/files/assurance_wireless_application_pennsylvania.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1737/1797/files/14009432827.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5601/9109/files/bakunin_anarchist_manifesto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0972/7912/files/dawn_of_war_tau.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6574/4287/files/adjectives_and_adverbs_test.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5769/3347/files/58537594611.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006e35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E35 | 5768 bytes |
SHA-256: 3ce488d2974eec8268a1548f9ccbbd8161cfcb2ebc5af726776bb12148eb14c4 |
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font_01_sfnt_off000081cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81CD | 2524 bytes |
SHA-256: 3c88888f84ed487a694278cc64b41cb0de609a764063a5dc2191361ac0f90572 |
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font_02_sfnt_off00008d0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D0D | 2576 bytes |
SHA-256: 6979bd47582e1076a00d5472c1190b3af330e4342ab9b9f0dc7d58f6ae02f5fc |
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font_03_sfnt_off00009800.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9800 | 10288 bytes |
SHA-256: fdb58833c292de14b2ab5a9aa8936e916bd7cefe3c81536e00870c805d21a7d7 |
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font_04_sfnt_off0000bb7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB7A | 16260 bytes |
SHA-256: a4a01ac4f167cfabfbe33b329634bc3b93fbb7ff688aacf6b25378c5860e68b8 |
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