MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as a free download, aiming to trick users into clicking it. The ML classifier strongly indicated maliciousness, and the presence of numerous external links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic to distribute the malicious URL. The document body itself contains the lure text and the malicious URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=precalculus+book+pdf+download
- http://files.tcapaving.com/uploads/1/3/2/3/132303261/9586986.pdf
- http://putog.verisoftgroup.com/uploads/1/3/0/7/130738836/sinogojixarajira.pdf
- http://files.maddiebooks.com/uploads/1/3/2/6/132682792/zesatawuvemu_zofabaxalogezaj_mavujenatijit.pdf
- http://files.imagesbylesrigby.com/uploads/1/3/1/4/131455621/66425c63f2b.pdf
- https://cdn.shopify.com/s/files/1/0435/7577/1304/files/69110816275.pdf
- https://cdn.shopify.com/s/files/1/0434/0426/3585/files/37718361502.pdf
- https://cdn.shopify.com/s/files/1/0436/3039/5552/files/betty_lukens_teacher_s_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/7208/6423/files/11969109577.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3087/files/nutrition_free_download.pdf
- https://cdn.shopify.com/s/files/1/0432/8269/4312/files/32180531143.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84312174386.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82505274200.pdf
- https://cdn.shopify.com/s/files/1/0433/5956/8027/files/56929030562.pdf
- https://cdn.shopify.com/s/files/1/0433/2571/8678/files/latudeguledexiweduteroda.pdf
- https://cdn.shopify.com/s/files/1/0433/9076/3175/files/fasituw.pdf
- https://cdn.shopify.com/s/files/1/0437/8161/9861/files/axis_allies_d_day_rules.pdf
- https://cdn.shopify.com/s/files/1/0433/3489/3721/files/13339652650.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007a31.binca92dc919acb5d918b5e5855c1ba92b203b2a727ee18a4d80c4453636bf6ecd6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A31 | 5444 bytes |
font_01_sfnt_off00008cd1.bin6e3b4759f53aef5e92c308ad0ba29cec29624fd0dbde20a3be9b45c48db3bbe9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CD1 | 9928 bytes |
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