MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to trick users into downloading or visiting a malicious resource. The ML classifier strongly indicates maliciousness, and the presence of a link farm points towards SEO poisoning or phishing tactics.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=texas%20motto%20worksheet In PDF document text
- http://leluxeg.randynissen.net/uploads/1/3/1/4/131438008/4e4456c85c20ab.pdfIn PDF document text
- http://pisip.lionheadeat.com/uploads/1/3/2/7/132740541/luser_fiwalewibidene_dojuwifajege_nafapalivojawe.pdfIn PDF document text
- http://files.stunningsphynxkitten.com/uploads/1/3/1/8/131872269/fisuxases-joregixog-xaxetasirimo-peger.pdfIn PDF document text
- http://files.thestrengthandconditioningcollective.com/uploads/1/3/1/1/131163945/kebinebarupij.pdfIn PDF document text
- http://dedumexaj.lollipopsisters.com/uploads/1/3/2/8/132815028/golub-benugofivodip-baxivawem.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/1/0431/3566/4284/files/korean_grammar_rules.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2670/2758/files/business_administration_and_management_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7446/0579/files/gauge_theories_in_particle_physics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8063/6821/files/daxazizajumesetad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8380/9447/files/titedilujevovutegonuza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1604/3168/files/87354599948.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1491/3191/files/gonemoleziretezixafeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1664/2975/files/91679596039.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3476/2654/files/razunubuxulutobes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3196/9438/files/72427081557.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7634/6266/files/senesimubewosutuduxapu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8676/5475/files/zosipokupijewobupulezizow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7003/6904/files/call_flooder_script.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1952/5531/files/dispositivos_de_almacenamiento_de_datos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/6500/3423/files/30750690996.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_off00006804.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6804 | 5068 bytes |
SHA-256: 6a26b880419d359488456b3da346979b9c757898cc0bbdbb73404f283db4447d |
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font_01_sfnt_off0000792f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x792F | 10916 bytes |
SHA-256: f0ba9795797f88063d7a26e05acf0f43f9724f429e36577c76f6b72271275e71 |
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