MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain. The document body text, though heavily obfuscated, contains keywords related to 'factoring trinomials worksheet' and a URL that appears to be part of an SEO poisoning campaign. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.ru/pify?keyword=factoring+trinomials+worksheet+with+answers+algebra+1
- http://files.modebylauren.com/uploads/1/3/1/4/131437615/fokijilefelotebaru.pdf
- https://cdn.shopify.com/s/files/1/0432/3672/0808/files/norude.pdf
- https://cdn.shopify.com/s/files/1/0430/9912/7959/files/21300386663.pdf
- https://cdn.shopify.com/s/files/1/0434/4391/2856/files/45788656574.pdf
- https://cdn.shopify.com/s/files/1/0432/5244/9435/files/9999088095.pdf
- https://cdn.shopify.com/s/files/1/0431/7220/0608/files/pofotuxuwegedanafunovab.pdf
- https://cdn.shopify.com/s/files/1/0463/1327/5554/files/motorcycle_hire_purchase_agreement_template.pdf
- https://cdn.shopify.com/s/files/1/0429/0697/6422/files/c_namevaluecollection_to_querystring.pdf
- https://cdn.shopify.com/s/files/1/0452/2396/8919/files/95404793483.pdf
- https://cdn.shopify.com/s/files/1/0431/5679/9647/files/trumpet_solo_pieces.pdf
- https://cdn.shopify.com/s/files/1/0430/8857/6661/files/92721385260.pdf
- https://cdn.shopify.com/s/files/1/0428/5769/3347/files/zobamawalubatujelirubamu.pdf
- https://cdn.shopify.com/s/files/1/0435/7187/1912/files/nelafodoxator.pdf
- https://cdn.shopify.com/s/files/1/0438/7271/4920/files/dollar_robber_rappy_mcrapperson.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005212.bine1aaceb1367bc4a1efa02ccfa516c59f04777913e341c91f7f9d2b8e3d35c43d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5212 | 5516 bytes |
font_01_sfnt_off000064bf.bine612e701de124cb374cc7ea206ed88e0bf6ac5f1e6a82fbc8f2da94dabdd31d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64BF | 9976 bytes |
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