MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.ru'. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for free downloads, likely a phishing or scam attempt. The ML classifier and heuristic firings strongly indicate malicious intent, specifically redirecting users to potentially harmful sites.
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=aliens+love+underpants+book+pdf In PDF document text
- http://zemonikeg.brunswickelections.com/uploads/1/3/1/6/131606552/gologakoxujifa.pdfIn PDF document text
- http://files.ginny-frings.com/uploads/1/3/1/3/131381658/2678371.pdfIn PDF document text
- http://files.adentakorea.com/uploads/1/3/1/8/131871894/5362217.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/1/0431/7095/5424/files/arduino_uno_starter_kit_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1737/1801/files/fopenixenuzivogifuvenago.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4456/8216/files/ganapati_atharvashirsha_telugu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3692/6374/files/40136135156.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5192/6183/files/renozadobugasimipelato.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6152/6166/files/2188084648.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6416/4506/files/89376349398.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1342/9655/files/remupexajuwiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6377/9240/files/59066409238.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6762/1028/files/lifopamum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4815/7859/files/kijililibiremimosaguk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8286/6072/files/8386881011.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9402/0000/files/google_chromecast_wallpapers.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_off00005048.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5048 | 5288 bytes |
SHA-256: be9214fa2c15c5bb24246c091bcf70cb79acb408947b30f9a967b4f483dbf4e8 |
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font_01_sfnt_off00006252.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6252 | 9736 bytes |
SHA-256: ede1629f3356fa52b4ddbd1744aaeba8af7a8603b9ce495a7997222501804669 |
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