MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to "Livro as catacumbas de roma em pdf" and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly supports the malicious verdict.
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.com/pify?keyword=livro+as+catacumbas+de+roma+em+pdf In PDF document text
- http://files.alex-chien.com/uploads/1/3/1/6/131606268/8618474.pdfIn PDF document text
- http://files.ppmglobal.services/uploads/1/3/1/3/131380126/9994026.pdfIn PDF document text
- http://gozupa.thomascalderselections.com/uploads/1/3/1/4/131437601/lesolikim-kawiwupedulev-vibakav.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/1/0438/4066/7808/files/51354239737.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0760/5918/files/28675201662.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6364/7131/files/betel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0642/5249/files/nitivunutufitulav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4796/8149/files/kenmore_90_series_washer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/4710/5191/files/bpmc_act_in_gujarati.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/7793/8855/files/adulteration_in_sugar_chemistry_project.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5640/5411/files/47397145819.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2315/4850/files/meningitis_bacteriana_por_streptococcus_pneumoniae.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7319/8497/files/bolijikiverusopore.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1070/9915/files/free_email_domains_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7328/2983/files/tejetikubafaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6803/0102/files/11552142732.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74140302582.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007186.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7186 | 5412 bytes |
SHA-256: 3a58d56ea17b89cbd6dcfc259c51fe9358bf0fa60a05fff427356c54b4f4f3ef |
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font_01_sfnt_off000083d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83D7 | 13140 bytes |
SHA-256: dfb6380df2f64d0cd6b21ff7e67c72cfecfecf9952de3ef47d1d87a405a84597 |
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font_02_sfnt_off0000aaef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAAEF | 16344 bytes |
SHA-256: 8d3139c6de1b4c1a8ff00afc57e45680a86216e4be2c760ec3fc47319ce3aed1 |
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