MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, a technique commonly used for SEO spam or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector, and another indicated a large number of external PDF links, suggesting a link farm. The document body, though partially corrupted, contains a URL that aligns with the observed malicious redirector behavior.
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.com/wb?keyword=secants%20tangents%20and%20angles%20worksheet In PDF document text
- http://files.3kidsfarmnigis.com/uploads/1/3/0/7/130775940/wogodav.pdfIn PDF document text
- http://files.iseil.org/uploads/1/3/1/3/131380397/fanajijosis.pdfIn PDF document text
- http://files.quiltedpics.com/uploads/1/3/1/3/131381352/vilivibozonom.pdfIn PDF document text
- http://files.mariahhill.com/uploads/1/3/0/7/130740128/4169874.pdfIn PDF document text
- http://files.aleksandragwardiak.com/uploads/1/3/1/0/131070861/balinaz.pdfIn PDF document text
- http://files.advancedanaerobics.com/uploads/1/3/0/9/130969555/davam.pdfIn PDF document text
- http://files.kcpanhel.com/uploads/1/3/2/8/132815961/1055807.pdfIn PDF document text
- http://files.chippewafsc.com/uploads/1/3/1/3/131397934/riwokotowekowewov.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://dunuludujeza.files.wordpress.com/2020/07/luguredisixuvomadijasazen.pdfIn PDF document text
- https://namelivarupe.files.wordpress.com/2020/07/67441469958.pdfIn PDF document text
- https://rejosejel.files.wordpress.com/2020/06/32300518049.pdfIn PDF document text
- https://zarivuj.files.wordpress.com/2020/07/janivupibuzubun.pdfIn PDF document text
- https://vimagifa577894512.files.wordpress.com/2020/06/masejujitizukedopil.pdfIn PDF document text
- https://zugomesemuz.files.wordpress.com/2020/07/42616695866.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4780083199.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sibubemazalomasedexikeme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruwisosipopiwusanitilowaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1568204463.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wotedosepano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96226605796.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_off0000732f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x732F | 5200 bytes |
SHA-256: 94edbc575ee57f06aa28ee44a78ec884a2c773dc28a1226e29fd748a590ebba5 |
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font_01_sfnt_off000084d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84D9 | 15104 bytes |
SHA-256: 05247f74d349d64dc56afa04e48aed3d8295e004f7d18e1907e85d92a61be7d0 |
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