MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, with a critical heuristic firing for a malicious redirector. The document body is heavily obfuscated, but the presence of the URL 'https://ttraff.ru/pify?keyword=allstar+performance+heated+tire+groover' and numerous other links to external PDFs suggests a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness.
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/pify?keyword=allstar+performance+heated+tire+groover In PDF document text
- http://files.spirithorsekingsburg.org/uploads/1/3/2/6/132696233/12849.pdfIn PDF document text
- http://kijiv.rockwallmaids.com/uploads/1/3/1/4/131437812/jananuje-kipanisujivol-bomopewe-kuwoj.pdfIn PDF document text
- http://digexer.drdom.com.au/uploads/1/3/1/3/131379179/xoxamuwab.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0432/7378/1411/files/servel_gas_refrigerator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7654/9798/files/upper_urinary_tract_infection_treatment_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3704/6422/files/practical_aviation_security_predicting_and_preventing_future_threats.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4817/9611/files/pdf_reader_portable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3569/5016/files/valquirias_paulo_coelho_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0428/7383/files/wukon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/62410824685.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2093/4558/files/avenant_au_contrat_de_travail__dure_indtermine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3127/2346/files/pezidewujidivalata.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4535/5682/files/90321616057.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000053b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53B1 | 5408 bytes |
SHA-256: c19d026d1ef11d34814c73c5960ab91b596580cecf954a983fe682accc5df53a |
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font_01_sfnt_off000065e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65E5 | 10460 bytes |
SHA-256: 85a3f94b69b51c70ff1df269f35e322c832942948fa4013241511bea09c9251e |
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font_02_sfnt_off0000896f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x896F | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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