MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that triggers this redirection. The presence of a link farm and the ML classifier's high confidence further support the malicious nature of this document, which is designed to lead users to harmful content.
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/wb?keyword=list%20of%20common%20integrals%20pdf In PDF document text
- http://files.desertcrewphotography.com/uploads/1/3/1/6/131607232/b4d7d20c.pdfIn PDF document text
- http://files.gawaterfalls.com/uploads/1/3/2/6/132695418/resixoxuvagafak.pdfIn PDF document text
- http://files.alamosavalleyhumaneleague.org/uploads/1/3/1/3/131383791/10af04.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/1/0438/0524/5597/files/80650243924.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7387/2807/files/yamaha_rx-_v375_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5698/8317/files/pixukavevufamame.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5520/9886/files/8962713369.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3943/8486/files/98837426039.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8108/0738/files/welob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6644/2406/files/71021946746.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0265/7957/files/88593602984.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7316/6744/files/losoxuvizagofuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0428/7383/files/4th_grade_math_exam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6332/0471/files/64970126164.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7837/6853/files/22335129634.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0664/7707/files/ritewera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3206/8775/files/govonufivetodepi.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000af4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF4D | 5416 bytes |
SHA-256: f86cce0c5a8cb2d4833704b5ea24783887212148faafc2da69ccf4444e2ae5ae |
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font_01_sfnt_off0000c1a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1A2 | 16872 bytes |
SHA-256: 5ac73350f407960a8aad50bebc461311574432fa883c8642c09ad50f69a90b5d |
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font_02_sfnt_off0000f693.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF693 | 16220 bytes |
SHA-256: 502241521b9a747e1ffbe603c4ce4fa25ddc58327f1965af51796015835e6730 |
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