MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=plant+ecology+lecture+notes+pdf'. This indicates a social engineering attempt to direct users to malicious infrastructure, disguised as lecture notes. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation to increase visibility. No scripts were extracted from this sample.
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.com/pify?keyword=plant+ecology+lecture+notes+pdf In PDF document text
- http://files.sal-elsayed.com/uploads/1/3/0/8/130874451/porilewofu-velor.pdfIn PDF document text
- http://files.drivinglessonsrichmond.com/uploads/1/3/2/6/132695200/pofonipo.pdfIn PDF document text
- http://files.preengreensalon.com/uploads/1/3/0/9/130969907/pobejobodubixuranaf.pdfIn PDF document text
- http://files.suburbanhennepinhousingcoalition.com/uploads/1/3/1/3/131380354/9726478.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/womonevixaxijebuvi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66083684812.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1223/5174/files/cerfa_13757_x_01_pdf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4575/6821/files/motiwifididoxurugeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1975/4907/files/jexegodibafer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4364/9698/files/capteur_d_humidit_du_sol_analogique_et_numrique.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8132/5987/files/jezibipowo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1569/0650/files/liraxesimuxidimamiba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6535/2102/files/banting_smoothies_for_weight_loss.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6289/4495/files/carpal_tunnel_syndrome_exercises_nhs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5353/1807/files/9613718660.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4017/8333/files/49747058388.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2028/8153/files/xafudowolubizituxage.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000690f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x690F | 5260 bytes |
SHA-256: 41dae34c068da21623b5649f1b28d595c019deff41656b2f11d29a40be80eec7 |
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font_01_sfnt_off00007afe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AFE | 10280 bytes |
SHA-256: edcee622df56b09d12502e242ebfd7c1879b0b67cb376e47fa337c806f44e9e3 |
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font_02_sfnt_off00009ddd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DDD | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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