MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, many of which point to a known malicious redirector. The primary malicious link is https://ttraff.cc/pify?keyword=astm+b117+16+pdf, which is designed to redirect users to further malicious content. The document body is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf, suggesting a programmatic approach to creating this link farm.
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.cc/pify?keyword=astm+b117+16+pdf In PDF document text
- http://files.633stclair.com/uploads/1/3/1/6/131606335/305c1.pdfIn PDF document text
- http://files.acuedge.net/uploads/1/3/0/8/130874416/9663850.pdfIn PDF document text
- http://files.laurajoart.com/uploads/1/3/1/4/131455832/zilitutekera_davikowuk_rukafefi_foponixu.pdfIn PDF document text
- http://files.olenkaschoolofmusic.com/uploads/1/3/0/8/130814758/8408966.pdfIn PDF document text
- http://sunigiga.shannonmcferrinfineartist.com/uploads/1/3/1/4/131406717/636389.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/1/0440/6099/9830/files/53079753922.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2965/9805/files/munson_fluid_mechanics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0507/4838/files/93817469839.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51108684678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4691/9579/files/artisanal_mining_in_zimbabwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9232/0161/files/29361558083.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9019/8180/files/welopevosaretatunopevez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8748/7395/files/metamezagonirig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3171/4199/files/70396464133.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9318/7989/files/67846517522.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1664/9890/files/91503692931.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9721/0532/files/54926541476.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_off0000820a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x820A | 3140 bytes |
SHA-256: 0479f8e136fb152e2b26a8f5d0344bbb34065f507ec87bfa69dae4354fdaf78c |
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font_01_sfnt_off00008d4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D4F | 5264 bytes |
SHA-256: d75ac3611f1fdcd09a8972879d93df9a6e284045220d8d9970a430154c9dc67d |
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font_02_sfnt_off00009f35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F35 | 10244 bytes |
SHA-256: 8d92219c13c6b8e7cfbd8b2a46e16998a8d48f7f58dd9c03689390447e253fee |
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