MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'ib physics mechanics questions and answers' and the malicious URL, suggesting a lure to academic content. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be directing users to malicious infrastructure via a deceptive link within the document.
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.cc/pify?keyword=ib+physics+mechanics+questions+and+answers In PDF document text
- http://files.pattyschroeder.com/uploads/1/3/0/7/130738846/zununabadut.pdfIn PDF document text
- http://gitukuza.turnerschool.com/uploads/1/3/1/3/131379732/banupasunukozuwi.pdfIn PDF document text
- http://files.bioguardpest.com/uploads/1/3/1/3/131381363/viwijexiza.pdfIn PDF document text
- http://files.amplifiedmobiledj.com/uploads/1/3/2/7/132710624/6fc352d82.pdfIn PDF document text
- http://files.custom-installation-2020-vision.com/uploads/1/3/2/6/132681062/5520068.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/1/0428/9835/8432/files/sivezijikok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8218/6905/files/68188828093.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3932/6365/files/selasirefukepodewatejewo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2030/4034/files/92632937556.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4837/8280/files/mudofizobaluve.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1341/3791/files/remozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/2584/5659/files/ryobi_miter_saw_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5961/8716/files/suxijamajivepifev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7197/9172/files/zolewamad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8679/1334/files/tizuzukeputowopeza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6038/8262/files/womizefilawepujatukumuka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/3287/4901/files/carbon_nanotubes_thesis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6335/3250/files/lugeje.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_off000048c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x48C9 | 5680 bytes |
SHA-256: 5a9d3f8d474ca289858afb2473fb477b1606cba1fc8e1124d3e2a2e4bcde0cd7 |
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font_01_sfnt_off00005bee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BEE | 2188 bytes |
SHA-256: 9a52fd4cb406a6bbc2c312c8239793f8491d20fd4cec5e1db204b46a5d2a7941 |
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font_02_sfnt_off000065d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65D0 | 10024 bytes |
SHA-256: 793d36300d9536ed513072ceebf5fe69b6ff7ebd3d77ecbbfe2606a053bcf4c4 |
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