MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure. The document body, though partially corrupted, contains text that appears to be a lure for an Android application download, directing the user to the malicious URL. This suggests a phishing or social engineering attack aimed at redirecting users to potentially harmful content.
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.ru/pify?keyword=android+up+navigation+bar+apk In PDF document text
- http://wojane.circusparkmedicalvillage.org/uploads/1/3/0/8/130814297/zefokek.pdfIn PDF document text
- http://rugowiri.exfaex-tools.com/uploads/1/3/1/1/131163908/e8f305bc73a.pdfIn PDF document text
- http://files.purgatoirevalleyfoundation.org/uploads/1/3/1/0/131070521/8087211.pdfIn PDF document text
- http://bavamu.sinai-horeb.com/uploads/1/3/1/4/131483337/jumovodabirut_tuxizoxep_toxobutu_buliwinaviruse.pdfIn PDF document text
- http://files.hccflmetz.com/uploads/1/3/1/8/131856050/xolelibalumifapeko.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/1/0430/8867/4967/files/27715633448.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7369/0017/files/sefofob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/99355491368.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7692/5078/files/forward_declaration_of_template_class.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8329/1029/files/autodesk_revit_2020_structure_fundamentals.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3377/9611/files/body_language_in_the_workplace.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8523/3304/files/95894352551.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3281/2439/files/android_uninstall_bloatware_app.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6559/7342/files/bash_script_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6823/5682/files/69203717721.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3833/2312/files/geometric_distribution_examples_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wowivitotorinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8370/3206/files/320236289.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005602.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5602 | 5172 bytes |
SHA-256: d4b22d9f1606f6a6f634a88d2d8cff0679e7aa59c827a048af777757c9999a53 |
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font_01_sfnt_off000067a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67A7 | 10796 bytes |
SHA-256: daaa96eb2b095c9f8e31ec8c64abf004bd9396cf4e6fc3baeea9240d0d1e8c17 |
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