MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=cedaw+treaty+pdf', which is also flagged as a malicious redirector. The presence of a large number of external PDF links suggests a link farm or SEO poisoning attempt to disguise malicious content.
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.ru/pify?keyword=cedaw+treaty+pdf In PDF document text
- http://files.kbshoppingcenter.com/uploads/1/3/2/6/132682204/7668861.pdfIn PDF document text
- http://files.multidimensionalchromatography.com/uploads/1/3/1/1/131163955/kuxelifaxevuji_rutudobiso_vigidazik.pdfIn PDF document text
- http://files.raisethesteaks.net/uploads/1/3/0/7/130739415/rajubijelu.pdfIn PDF document text
- http://ledofari.florosstylianoumotors.com/uploads/1/3/1/0/131071252/a461fe980107fb9.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/1/0441/2047/3752/files/harrison_cardiologia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9776/6553/files/pathophysiology_of_pulmonary_hypertension.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/2734/6086/files/gonagesifojasobitave.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9945/4628/files/dilodufavusex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0844/8920/files/jiziwapewuxosemetimole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2312/3100/files/batman_the_dark_knight_returns_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7409/3217/files/fewen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3503/3757/files/wimubewubufapal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88490435411.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4586/3067/files/75017431685.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/jedizad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8266/1526/files/mosuvamewadewubu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4060/4314/files/fixewumifoxomoduseviv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1949/3785/files/3248667581.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_off0000d360.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD360 | 4924 bytes |
SHA-256: 0d45cd501f06c2245b00cdb206a43259b6d155e5a534062e524e1aa34687f266 |
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font_01_sfnt_off0000e44c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44C | 10160 bytes |
SHA-256: f6f528116c6ef4402b71eb7e77337928645ffc89763f00a54cbc84888916a2a0 |
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