MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, many of which are hosted on Shopify and appear to be SEO spam. One critical heuristic indicates a malicious redirector link to 'ttraff.ru', which is likely part of a phishing or malware distribution chain. The document body, though heavily obfuscated, contains the malicious URL and suggests a lure for downloading an ebook.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=automobile+engineering+ebook+pdf+download In PDF document text
- http://files.fbcbrockton.org/uploads/1/3/2/6/132681992/godoragakowito_papamerasu_kepilabubi_xatedagenu.pdfIn PDF document text
- http://files.aikendrivingclub.com/uploads/1/3/1/4/131407918/6791590.pdfIn PDF document text
- http://files.geeksfromthetrap.com/uploads/1/3/2/6/132695830/4613525.pdfIn PDF document text
- http://files.britanniabeachcommunity.org/uploads/1/3/2/6/132695278/ebcfa245937ae4.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/1/0430/0088/9507/files/ralidusukosesazesoxilatu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7055/3250/files/walulawufusunedetova.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9754/7157/files/36407796603.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3905/5258/files/15835944175.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mikawewetekiwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/bridge_rectifier_testing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5216/3482/files/paxofisuwetuvu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6827/6384/files/87434996553.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1223/5159/files/91037132554.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0222/5059/files/dizobonexisepudateregaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0888/3870/files/87886958194.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vawis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22893269325.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_off00006dde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DDE | 5468 bytes |
SHA-256: 5d6077e0a613d22fe516a8dee880f416f1f03363148a8b823a45b6fd6dd99592 |
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font_01_sfnt_off00008072.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8072 | 10268 bytes |
SHA-256: 6234a2ec6c3767fe708f14c89d4a9cd4fb2bb5098c02989713611b77b942194c |
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