MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links redirects to a known malicious infrastructure. This indicates a link farm or SEO poisoning attack designed to drive traffic to malicious sites. The ML classifier also strongly flagged this PDF as malicious.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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=difference%20between%20medical%20and%20surgical%20asepsis%20pdf In PDF document text
- http://files.joyfor2day.com/uploads/1/3/1/3/131383383/1534363.pdfIn PDF document text
- http://files.be-boosted.org/uploads/1/3/2/3/132303282/5ae8493412e.pdfIn PDF document text
- http://files.pst4y.org/uploads/1/3/0/7/130738814/piwagitasesesuwatug.pdfIn PDF document text
- http://files.tustinseo.com/uploads/1/3/1/1/131163514/8728756.pdfIn PDF document text
- http://files.nlg-pros.com/uploads/1/3/0/9/130969910/katixiratowapo.pdfIn PDF document text
- http://files.nosborne.com/uploads/1/3/1/4/131452741/70e95.pdfIn PDF document text
- http://files.20thfightergroup.com/uploads/1/3/1/0/131070325/2467582.pdfIn PDF document text
- http://files.iowaconcreteleveling.com/uploads/1/3/2/8/132814123/folisor-xulexitepatopi-dalojusera-gazuvomexi.pdfIn PDF document text
- http://files.ryanchrisbartlett.com/uploads/1/3/0/7/130775837/3b2a6c4d4f56f.pdfIn PDF document text
- http://files.leftanglebeta.com/uploads/1/3/0/7/130775192/de327b0fee2a378.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wutamewoj.files.wordpress.com/2020/07/fevebizozozatovek.pdfIn PDF document text
- https://limalido.files.wordpress.com/2020/07/bakopomaralirin.pdfIn PDF document text
- https://fipabimedimi.files.wordpress.com/2020/06/lipilup.pdfIn PDF document text
- https://vevatasuso.files.wordpress.com/2020/07/66005977262.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xeniwepisovera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61086590007.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66048758492.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/runuwadobona.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.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_off0000bb4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB4E | 5480 bytes |
SHA-256: 521f49ee9c6814f1f4de243824fb68563eaf677deb25ade7903c6ba0b64202bd |
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font_01_sfnt_off0000cdde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDDE | 10276 bytes |
SHA-256: 6f6d3c0c2a7db14d75dee5b1def065eeed5085fec42806c20ebfe560df234389 |
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