MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though obfuscated, contains a URL that appears to be part of this malicious infrastructure. The presence of numerous external PDF links, many with numeric slugs, suggests a link farm or SEO poisoning tactic to attract victims. The ML classifier strongly indicates maliciousness.
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.com/wb?keyword=leukoaraiosis%20adalah%20pdf In PDF document text
- http://newuzupu.nataliedegrand.com/uploads/1/3/1/3/131381521/00986dbb156.pdfIn PDF document text
- http://files.biddislifestyleweddings.com/uploads/1/3/1/4/131437937/timuwabewosiv.pdfIn PDF document text
- http://files.kaitlinwilliams.com/uploads/1/3/1/3/131384442/5312888.pdfIn PDF document text
- http://jirafu.moliereexpressions.com/uploads/1/3/1/4/131437252/zaviwaw-letodunu-lixaxawunilebiv-zobuxajobuwemu.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/1/0433/4885/2904/files/82262708533.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9902/7611/files/48089484673.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4245/5207/files/piregufevir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4817/9611/files/23651267602.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/2987/7151/files/bernoulli_differential_equations_problems_and_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7952/2722/files/canoscan_lide_110_driver.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1810/0637/files/79745748097.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7658/2552/files/titavufalesa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9478/5694/files/51619667791.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1197/3026/files/10609975468.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4500/3169/files/nidujivanefisim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0712/3357/files/essential_hypertension.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_off00008028.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8028 | 5132 bytes |
SHA-256: be2c435ec8bad5be05c811860b8c875b2d372fa9ed4ca7d431f763d43a14cec3 |
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font_01_sfnt_off000091a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91A3 | 11136 bytes |
SHA-256: bbc9170e320923fa0551e3f484caa3c9b054e652de2f8bae27950a3ffde1efc5 |
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