MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document is classified as malicious due to its extensive use of embedded links, a technique often employed for SEO poisoning and redirecting users to malicious sites. The document body, while containing a seemingly educational title, is primarily a vehicle for these numerous external links. The heuristic firings confirm the presence of a malicious redirector link and a link farm, indicating a strong intent to drive traffic to potentially harmful destinations.
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=states%20of%20matter%20practice%20worksheet%202nd%20grade In PDF document text
- http://files.toodarnhaute.com/uploads/1/3/0/8/130873973/c5523fd0916134f.pdfIn PDF document text
- http://files.thewarriorlady.com/uploads/1/3/1/6/131606631/7633542.pdfIn PDF document text
- http://files.statementzine.com/uploads/1/3/1/3/131398281/duvumiba_telulotax.pdfIn PDF document text
- http://files.curetypeone.com/uploads/1/3/1/3/131380121/dadf492e7ec13e.pdfIn PDF document text
- http://files.batrssocal.com/uploads/1/3/1/3/131384789/vipibifoxoteroxu.pdfIn PDF document text
- http://files.michaelbruley.com/uploads/1/3/1/4/131453837/borodizi.pdfIn PDF document text
- http://files.prettynpoised.com/uploads/1/3/1/4/131452806/gegisemowixe_revejobegijokup_weliwatisul.pdfIn PDF document text
- http://files.thefeltfactory.co.nz/uploads/1/3/0/7/130776841/xizixexa-dajawotubep-fekifomidele.pdfIn PDF document text
- http://files.goodchoiceinstituteinc.com/uploads/1/3/0/7/130738562/7a791.pdfIn PDF document text
- http://files.threeaineconsultancy.com/uploads/1/3/1/0/131070125/587526f65.pdfIn PDF document text
- http://files.eleotinherbs.com/uploads/1/3/1/3/131379951/vizezezos.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://tejuxojove.files.wordpress.com/2020/07/92016786901.pdfIn PDF document text
- https://gubenop.files.wordpress.com/2020/06/dofomeso.pdfIn PDF document text
- https://koxebitiz.files.wordpress.com/2020/06/lexosuvinimujevu.pdfIn PDF document text
- https://lotosam.files.wordpress.com/2020/07/durelesa.pdfIn PDF document text
- https://xevabutifun.files.wordpress.com/2020/07/gepanewopimeloxupomibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62114329075.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72710717911.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78539107281.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53607129813.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.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_off000055de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55DE | 5716 bytes |
SHA-256: 87bf6b6fbe9ad5c97313fa5e0796f51127bcdea5a53766325ae1022370ee13d9 |
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font_01_sfnt_off00006932.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6932 | 10176 bytes |
SHA-256: dd19700c1e9c983074fa69c35654e0da674f555af395692083404ebe17fe9198 |
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