MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirection and a link farm, including a critical finding for a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL pointing to a redirector, suggesting the primary goal is to lead the user to malicious content. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/pify?keyword=hssc+advt+11%252F+2019+notification+pdf In PDF document text
- http://files.tenderlovingcats.org/uploads/1/3/1/4/131455832/c6048d246e0c.pdfIn PDF document text
- http://files.anisaradio.org/uploads/1/3/0/7/130776656/kesivikofalipimi.pdfIn PDF document text
- http://files.cptoffice.com/uploads/1/3/0/7/130739287/6460365.pdfIn PDF document text
- http://files.mainternational.net/uploads/1/3/0/9/130969206/4bc09.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1490/6275/files/wuxepolonuwuverase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5094/3142/files/nabedi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7573/9560/files/25785414752.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8679/1334/files/programa_arquitectonico_de_una_casa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7617/3472/files/zepawow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6279/6186/files/guxigobokuvowositosujiluz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8042/5370/files/93442306952.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0464/8747/0248/files/xakukotejuwodufujagofidun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0219/9203/files/tanukafugagabi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8032/6051/files/80_alkaline_20_acid_food_chart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9593/2574/files/tiliwuwomarasivijar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7868051279.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1184/9890/files/hssc_annexure_e1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9838/3260/files/82107709998.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_off00007028.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7028 | 5560 bytes |
SHA-256: 22ebb2166f92ac6481d6c2c04dc85526ab917ebf2ea049b85bef243545325d66 |
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font_01_sfnt_off00008331.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8331 | 11928 bytes |
SHA-256: 57c9a358e0ea7f9a1a2c47b3f51efd697d8626cd9ca7bae8845dd237e5b4826d |
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