MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains multiple embedded URLs, with one identified as a known malicious redirector (ttraff.cc). The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, suggesting it was generated programmatically. The primary attack pattern involves luring the user to click on the malicious redirector link.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=capitu+e+bentinho+pdf In PDF document text
- http://files.asyouwishsxm.com/uploads/1/3/2/6/132683000/e2033.pdfIn PDF document text
- http://files.cookscreekchurch.org/uploads/1/3/2/7/132712214/kaxutuli.pdfIn PDF document text
- http://files.jewelerinthewoods.com/uploads/1/3/2/8/132814071/rorunik.pdfIn PDF document text
- http://files.bigsandlakepoa.org/uploads/1/3/0/8/130873804/digekox-pevujed-pufelolej.pdfIn PDF document text
- http://files.fitzpatrickecologicalconsulting.com/uploads/1/3/1/1/131163635/09ac9c.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/1/0432/1447/1330/files/bakupagumo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1790/4033/files/19630438775.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5392/1957/files/17991363793.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6182/1083/files/majajikirokotesolesu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44994208471.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0360/8216/files/wazevig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9307/1774/files/desofemuximexutowabajox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5114/7676/files/ramefakawidomobopepede.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6349/1222/files/pesovujemeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9378/6791/files/98156868720.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4953/3088/files/36847479167.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_off000096d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96D0 | 4868 bytes |
SHA-256: 993ba8957fd49bc47924822176a73ce4ed405fbab164dc3c4482d0d57aeccf8c |
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font_01_sfnt_off0000a751.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA751 | 12868 bytes |
SHA-256: b8ebd256508fb4f669beb40fc863ec6d9697c50e954b7e11b1691f9a39eb85f4 |
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