MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the target URL, suggesting a lure to download further malicious content or redirect to phishing sites. The ML classifier strongly flagged this PDF as malicious.
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.ru/pify?keyword=dr+sc+sharma+accountancy+class+12+solutions+pdf+download
- http://files.itschima.com/uploads/1/3/1/4/131454098/fetil-kuzozozinawedap.pdf
- http://files.pianolessonsbyjulie.com/uploads/1/3/1/3/131380868/59baef08.pdf
- http://files.uclagoingglobal.org/uploads/1/3/1/6/131637362/82ae3872b094bf.pdf
- http://files.jenimahoney.com/uploads/1/3/0/9/130969545/puvugunak-xakuforavejomoz-larepiduroxe-sajinefafaze.pdf
- http://files.devonthecarguy.com/uploads/1/3/1/3/131379980/fc26eec974cb2.pdf
- https://cdn.shopify.com/s/files/1/0436/9760/2713/files/96632210604.pdf
- https://cdn.shopify.com/s/files/1/0429/1543/0559/files/unearthed_arcana_classes.pdf
- https://cdn.shopify.com/s/files/1/0430/6511/4775/files/asme_b31._3_acceptance_criteria.pdf
- https://cdn.shopify.com/s/files/1/0431/7977/0019/files/ruzikopozonola.pdf
- https://cdn.shopify.com/s/files/1/0434/3254/2369/files/16828309692.pdf
- https://cdn.shopify.com/s/files/1/0432/5851/1522/files/wojunebuwogo.pdf
- https://cdn.shopify.com/s/files/1/0433/5638/9528/files/zolenag.pdf
- https://cdn.shopify.com/s/files/1/0428/4085/0598/files/78765988329.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jamitaribigonekadori.pdf
- https://cdn.shopify.com/s/files/1/0432/0631/2098/files/64724635730.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_off00005e80.binba778e9a4339cbfaa3ebb9fef1dbe4503654f1ba89b268c8c56e2038773c4348 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E80 | 5772 bytes |
font_01_sfnt_off00007224.binc23ecfecca745b5937aab1e714326fc4d7e880fd41eec5085cbb95cfc9839682 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7224 | 10216 bytes |
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