MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to artificially inflate search engine rankings or distribute content through numerous links. The embedded URL and the document body, though heavily obfuscated, indicate a call-to-action to download content, aligning with the malicious redirector's purpose. The file was generated using wkhtmltopdf, which can be abused for creating malicious PDFs.
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.com/pify?keyword=a+shiver+of+light+pdf+download In PDF document text
- http://files.kristinbruni.com/uploads/1/3/1/6/131606395/wevawujok-gapavefevumolo-noditimu-siwaseviwi.pdfIn PDF document text
- http://files.northernirelandteacher.com/uploads/1/3/0/8/130813757/b00f3d00.pdfIn PDF document text
- http://files.southtownscatholic.org/uploads/1/3/1/6/131636990/3996155.pdfIn PDF document text
- http://files.xtendinghands.org/uploads/1/3/0/8/130874110/pitetufozotelas-roxuniv.pdfIn PDF document text
- http://files.mlfickcourtlandkindergarten.com/uploads/1/3/1/3/131378950/gojukefitijijuj.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/1/0432/3491/8558/files/67686760974.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4085/7494/files/ponopowofisew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0883/5229/files/14120959115.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1583/9645/files/nogejadulofasivelabakekes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9755/3064/files/soditonigiludugibuwa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8570/8953/files/rigosixixifanomofetiseb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8863/2213/files/28505422816.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2128/7080/files/lokuberedukuxij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5161/3334/files/lekixunarafewizitejatip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5457/0399/files/73064187895.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_off00008af1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AF1 | 5232 bytes |
SHA-256: 3c9ee1198ace66bf3ffef6b8d95bbc14ce186cd39e151f37e2a2b7c55d5f9fca |
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font_01_sfnt_off00009ccb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CCB | 10260 bytes |
SHA-256: 603f3d752b651d960045e5b9cb88bdb383fd76f005b8a2ddf6a5aaa2564a6cda |
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