MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a worksheet. The PDF_SEO_LINK_FARM heuristic suggests a large number of similar links were generated, likely for SEO poisoning or link farming. 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.com/pify?keyword=dangling+and+misplaced+modifiers+worksheet+pdf
- http://files.poeticexpressionsforyou.com/uploads/1/3/0/8/130873708/5864917.pdf
- https://cdn.shopify.com/s/files/1/0432/2502/2621/files/44742122775.pdf
- https://cdn.shopify.com/s/files/1/0432/7243/7910/files/fuxajawo.pdf
- https://cdn.shopify.com/s/files/1/0438/4319/0946/files/accounting_information_systems_11th_edition.pdf
- https://cdn.shopify.com/s/files/1/0431/1403/7409/files/rajak.pdf
- https://cdn.shopify.com/s/files/1/0430/4168/5665/files/kelojikivivaxunizavererig.pdf
- https://cdn.shopify.com/s/files/1/0437/8293/0593/files/fagavekemorinazigozudi.pdf
- https://cdn.shopify.com/s/files/1/0438/5187/4466/files/megafitazedikumadopepap.pdf
- https://cdn.shopify.com/s/files/1/0433/3453/3275/files/acetaminophen_tylenol_davis.pdf
- https://cdn.shopify.com/s/files/1/0430/5738/1530/files/understanding_business_ethics_stanwick.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdf
- https://cdn.shopify.com/s/files/1/0433/4610/0377/files/fadokemevadex.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.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_off00005357.binf46f81c340769888a885100323a00b236285807630c1a25c599f85daba9ed113 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5357 | 5724 bytes |
font_01_sfnt_off000066b8.bin18b4d059d652afc09c126fc331a4f4c6cd4e9db770fed63c75cf7d5fb0d64578 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66B8 | 9052 bytes |
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