MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to external resources, with one specifically identified as a malicious redirector. The document body text, while obfuscated, includes the phrase 'Libros de auditoria administrativa 2 pdf' and a URL that matches the malicious redirector, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.
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=libros+de+auditoria+administrativa+2+pdf In PDF document text
- http://files.flagstaffpottersguild.com/uploads/1/3/1/4/131453401/dodowarojuvegu.pdfIn PDF document text
- http://damexu.corehomeinspect.com/uploads/1/3/1/6/131606490/8ee46.pdfIn PDF document text
- http://files.miortuk-alaskan-husky-kennel.com/uploads/1/3/1/0/131070476/sepid.pdfIn PDF document text
- http://genesej.cruisesceptic.com/uploads/1/3/0/9/130969368/8848117.pdfIn PDF document text
- http://files.zo-axus.com/uploads/1/3/1/6/131606362/zofaxinav.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/1/0430/7314/2933/files/discord_change_profile_picture.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1538/6789/files/machine_gun_kelly_bad_things_mp3_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4630/4920/files/zadugubewugasikewupeloze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/pokefopesokugubori.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2280/1306/files/cg_police_caf_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8624/2209/files/wabekujoromowisumixij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6855/5415/files/vebupunepomupu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9448/9755/files/kotikegovofatefelefabe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/21021717149.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7023/4527/files/52905050213.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6855/5415/files/wewonupex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8851/9080/files/rufilafutazadobabikawuvat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6385/2712/files/rinivega.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50306279194.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2135/2606/files/ribufebuvo.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_off00006aa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AA7 | 5308 bytes |
SHA-256: 24548e8559df647a16fdbe0563ad5bc28a2d8ebb0593af5b0885fca9f14bc6da |
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font_01_sfnt_off00007c98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C98 | 10332 bytes |
SHA-256: 35daf6be335201ab055078f382a00dd146ec64ecc7111fb3e166cc7017c28345 |
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font_02_sfnt_off00009e06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E06 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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