MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains a URL that appears to be the same as the malicious redirector. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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=matura+rozszerzona+angielski+s%25C5%2582ownictwo+pdf In PDF document text
- http://ridiwikut.duneridersponyclub.org/uploads/1/3/0/7/130776791/nimaxixejoga-bomazegojen-jerexof.pdfIn PDF document text
- http://files.michaelmaguire.com.au/uploads/1/3/0/8/130874612/naxugigiputu-xunujefoxujuka-zetepat.pdfIn PDF document text
- http://files.daytonaramblings.com/uploads/1/3/1/4/131414240/387650.pdfIn PDF document text
- http://zutekukuv.scotholme.com/uploads/1/3/1/6/131637881/xisufulidapobev.pdfIn PDF document text
- http://files.thelopezlibrary.com/uploads/1/3/1/3/131383613/metelazutajaduki.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/1/0430/0413/3525/files/xirawedupekizodij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2869/9553/files/anexo_2_simples_nacional_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7651/8049/files/53883968186.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6108/3301/files/jejononufite.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7162/6652/files/86152992125.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0378/1013/files/rozesavamewabazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1097/2053/files/10429708434.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5598/6341/files/8248606381.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2330/9727/files/gamma_world_4th_edition_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4101/3415/files/jenisilopalax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/8884/3686/files/cayaponia_tayuya.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8201/4108/files/70389914766.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_off0001ccad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CCAD | 5472 bytes |
SHA-256: 678d08f1c0b4cb09cb3926d7db8e485472b33f0cd112d9d542616dddb65a1dc8 |
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font_01_sfnt_off0001df84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1DF84 | 12940 bytes |
SHA-256: 97a10346f64dc8df893cfad7293e297e172ade5fd35fa3079b2d1c1300601781 |
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font_02_sfnt_off00020786.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20786 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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