MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links designed to appear as legitimate downloads for educational materials, but they redirect to malicious infrastructure. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, many of which are SEO-optimized to appear as free downloads. The primary redirector URL is 'https://ttraff.cc/pify?keyword=10th+class+physical+science+textbook+pdf+download', which is flagged as a malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=10th+class+physical+science+textbook+pdf+download In PDF document text
- http://files.tatachillalutherancollegelibrary.com/uploads/1/3/2/7/132710704/6598048.pdfIn PDF document text
- http://files.empirefloorsca.com/uploads/1/3/1/4/131438835/morukawulizopo-pozopotozeguxib-buxesusez-fizuvedolivi.pdfIn PDF document text
- http://files.tilitoimistoanjasimola.com/uploads/1/3/1/4/131453577/dumosisixipabexuwupe.pdfIn PDF document text
- http://files.stmonicasparish.com.au/uploads/1/3/0/8/130813768/1062222.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/1/0438/2107/2541/files/puxuni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8007882555.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9413/7249/files/nitoturupesa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6688/4250/files/20886173404.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2399/8874/files/kadirexi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0032/3478/files/jawilino.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0794/2549/files/26902690077.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3123/2674/files/juxofitelunosebinodegu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4646/9793/files/zegitanedogeweba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9094/3902/files/gotiviwolamopirasa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5036/0232/files/zonuruluwoxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9472/1187/files/fetavewobi.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001a34c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A34C | 5500 bytes |
SHA-256: 2bfdc1f91d630cb96e37ea6ddd6c5c3e7d3c26c90125c927026df97534dbadc5 |
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font_01_sfnt_off0001b605.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B605 | 5284 bytes |
SHA-256: 1e56cb89ff2c158df074c29ff53c797a3d8bfedfafb8186366d058500d834f38 |
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font_02_sfnt_off0001c7af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C7AF | 10436 bytes |
SHA-256: a57bc8b9d7ac6be4147fa89285e03f9a06b748f06a72a03be48b544b33a49e92 |
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font_03_sfnt_off0001eb8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EB8F | 16248 bytes |
SHA-256: c9d058478508aa21faea11bb46fe45d34ba8820029b9b0b2093952805bb38914 |
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