MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains multiple embedded links, a common technique for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/wb?keyword=alcohols%20phenols%20and%20ethers%20pdf%20ncert'. The presence of a 'download button' heuristic further suggests a lure to entice users to click the malicious link. While many links point to benign Shopify domains, the presence of the malicious redirector is a high-confidence indicator of malicious intent.
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/wb?keyword=alcohols%20phenols%20and%20ethers%20pdf%20ncert In PDF document text
- http://files.purtonyouth.com/uploads/1/3/0/8/130873851/6975023.pdfIn PDF document text
- http://files.livingheartyoga.com/uploads/1/3/0/8/130814339/3d427a90ff8.pdfIn PDF document text
- http://files.eefkeduin.nl/uploads/1/3/0/9/130969705/pagevujowave.pdfIn PDF document text
- http://files.bluebirdtweetsstudio.com/uploads/1/3/1/3/131379343/e0f3e471.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/1/0430/1645/4305/files/66284977488.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2953/6676/files/2772752146.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5770/8193/files/pewarizoresawiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26443777516.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1550/4029/files/63716715280.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0525/5577/files/80976588627.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8110/4541/files/lapalozufiki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1642/1529/files/43808538346.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5100/7638/files/fotonirun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9610/4348/files/97548081223.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2933/1100/files/1414524925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9386/8187/files/fusug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6576/1176/files/vasibuwatexariz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4181/4693/files/just_like_animal_lyrics.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_off00007918.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7918 | 5232 bytes |
SHA-256: 5f7bb87c9fc9db3b009c5d22de9795d32624ab7b209b9b9bd34221a8a98623c2 |
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font_01_sfnt_off00008add.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8ADD | 10388 bytes |
SHA-256: ff175edbc8b968bdab02a5a8a3950179e362d08e62753a5e02f7aea8bd8898a7 |
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