MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URL `https://ttraff.cc/pify?keyword=interpreta%25C3%25A7%25C3%25A3o+de+exames+laboratoriai` is a known malicious redirector. The document body, though partially corrupted, contains references to laboratory exams and the wkhtmltopdf tool, suggesting a lure. The primary attack pattern involves redirecting users through a network of links, likely leading to malicious 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.cc/pify?keyword=interpreta%25C3%25A7%25C3%25A3o+de+exames+laboratoriai In PDF document text
- http://numuwulir.information4felons.com/uploads/1/3/2/6/132695601/sexulotarawu.pdfIn PDF document text
- http://wifalubiv.gvrshow.com/uploads/1/3/0/7/130776054/demaxadugevupu.pdfIn PDF document text
- http://files.saltysouthernroute.com/uploads/1/3/1/4/131453451/6530371.pdfIn PDF document text
- http://widajufi.depthstiny.com/uploads/1/3/0/8/130814579/jajuvabegojenoj.pdfIn PDF document text
- http://files.raymondbassmasters.com/uploads/1/3/1/0/131070689/vamekata_lugezese_kidojoxepoxoza_masavom.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/1/0430/2995/4721/files/70394425561.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1290/6405/files/refoxosefujikudenedu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3595/1257/files/wogimiguzaxugazifajebij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fimovubonivunab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3092/0871/files/mevimelubileguzomenujoji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7354/5116/files/25829132406.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9700/5981/files/xajubamulasajotu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1967/2472/files/71120219871.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6197/8023/files/34621298885.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4923/8184/files/1772683703.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6564/7012/files/vusujawuzas.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_off00007a25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A25 | 5536 bytes |
SHA-256: 12af53947455b4c629ab00439c8db773e2ce36276daa98f3df4329d62229f3f5 |
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font_01_sfnt_off00008c35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C35 | 17100 bytes |
SHA-256: a96e741a81511ddd13222bb80123743b20f26d4424f0afc667a3b71dc55df3a7 |
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font_02_sfnt_off0000bcf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCF6 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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