MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, contains text suggesting a lure for free PDF downloads, which aligns with the heuristic findings of a PDF link farm. The ML classifier strongly indicated maliciousness. The primary attack vector appears to be directing users to malicious infrastructure via a deceptive download lure.
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.cc/wb?keyword=all%20mathematical%20formulas%20pdf%20free%20download
- http://files.adelantechc.org/uploads/1/3/0/8/130874154/wipaborig_xewotoxedoj_fikitusum.pdf
- http://files.fullglassglazing.com/uploads/1/3/0/7/130776403/wasasod.pdf
- http://foleken.jrcentrepieces.co.uk/uploads/1/3/1/1/131164406/nubovereduk_kakibakitivinu_lijodor_rasibamedetozef.pdf
- http://files.rachelaustinrachelaustin.com/uploads/1/3/0/7/130738881/zexugijarom_mekigibujowubed_jevupesodatulat.pdf
- https://cdn.shopify.com/s/files/1/0429/8312/9251/files/98138241165.pdf
- https://cdn.shopify.com/s/files/1/0431/2412/9952/files/botany_practical_book_download.pdf
- https://cdn.shopify.com/s/files/1/0435/9100/8419/files/27264701749.pdf
- https://cdn.shopify.com/s/files/1/0441/2869/8520/files/renafivavenejosakurubefi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dokole.pdf
- https://cdn.shopify.com/s/files/1/0432/3721/2319/files/61563090568.pdf
- https://cdn.shopify.com/s/files/1/0429/7906/6009/files/gedavilogixarinamegaxojun.pdf
- https://cdn.shopify.com/s/files/1/0432/5926/5188/files/wagapulinafezisupidevo.pdf
- https://cdn.shopify.com/s/files/1/0445/8368/2212/files/cracking_the_genesis_code_download.pdf
- https://cdn.shopify.com/s/files/1/0428/8158/1209/files/referencias_apa_ejemplos.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_off000059e6.bin660cc66df51d99a64ece0699763242f9524458639eb6ec7d6299b70794c84bba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59E6 | 5476 bytes |
font_01_sfnt_off00006c6c.bin5acf637cf609122a94a0921cf141904cdae3d38302e9f9fcd6f5ffe3d0f536e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C6C | 14272 bytes |
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