MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, specifically a link farm designed for SEO manipulation. The document body, though obfuscated, contains text that appears to be a lure for educational content, likely to trick users into clicking the malicious redirector. 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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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=finding+slope+from+a+graph+worksheet+key In PDF document text
- http://files.nestmboston.com/uploads/1/3/1/3/131398177/vusogolexebozu-xivekizoxaxom-basisidexijum-gujas.pdfIn macro / runtime command snippet
- http://files.scoilsantain.com/uploads/1/3/1/8/131857565/bexejibajumege.pdfIn PDF document text
- http://files.richmondcountylittleleague.com/uploads/1/3/0/7/130738870/ae131687d.pdfIn PDF document text
- http://suvuj.memphisescaperooms.com/uploads/1/3/1/8/131872096/nuwoxud.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/1/0433/9728/3996/files/majudafub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8656/7841/files/54735209293.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3605/5454/files/curl_data-_urlencode.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5407/1957/files/75096841436.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9819/3573/files/82109119984.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7816/4387/files/archydro_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4235/6904/files/babafuvi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3437/7372/files/kraftmaid_cabinets_prices.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1761/7057/files/39079725690.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1385/7692/files/93309966340.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1770/5371/files/makalah_amdal_industri_terhadap_lingkungan.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
- https://cdn.shopify.com/s/files/1/0In macro / runtime command snippet
- 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_off00005a62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A62 | 5668 bytes |
SHA-256: 56fb9e3e296d5462e949e18f1cb930a4772ebd2fdcb5fad66f4aafca012d457d |
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font_01_sfnt_off00006d96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D96 | 9952 bytes |
SHA-256: 5b8b7cd497efa52af28408b58a5c32df3f77a4881bcc9d453502d03e63f41c2f |
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