MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic firing. The primary malicious URL is 'https://ttraff.com/pify?keyword=nshm+kolkata+course+fee'. The document body, though partially corrupted, contains text related to the URL's keyword, suggesting a lure. The ML classifier 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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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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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=nshm+kolkata+course+fee In PDF document text
- http://mizadab.llhsa.org/uploads/1/3/1/0/131070387/vukabe-madomewozedezid-voserabonaz-wofep.pdfIn PDF document text
- http://files.mail.byboukje.nl/uploads/1/3/2/7/132741020/sukopivugopugobuxosa.pdfIn PDF document text
- http://mikolu.seelenleben.ch/uploads/1/3/1/4/131453540/pudego-wukabawexusog.pdfIn PDF document text
- http://files.booksthatbalance.org/uploads/1/3/0/7/130775628/bifajagixin_sulomo_timeza_ruleba.pdfIn PDF document text
- http://mebulafu.zhouzoeyuan.com/uploads/1/3/2/7/132712207/bugovefubi.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/1/0429/6137/1290/files/43673240282.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1279/2221/files/mapa_politico_centroamerica.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4206/8887/files/56058759029.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4253/7629/files/boronuvixipanosuvazowunef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5039/4019/files/45304729764.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9573/5976/files/ganpati_atharvashirsha_in_gujarati.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6549/1107/files/revukimiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4618/2822/files/33316433079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5144/1560/files/sutifinekugixekovoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5594/6645/files/44881406796.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/3066/7413/files/movil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8863/4266/files/77117328265.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0459/1658/6133/files/bonfiglioli_gear_motor_catalogue.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2043/5112/files/microsoft_brand_guidelines_2017.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/definicion_de_amigos.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_off00007787.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7787 | 5152 bytes |
SHA-256: 566571496a093dd72e2e91914278c1fed4a57866bb602942f3a15324933353c2 |
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font_01_sfnt_off000088ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88EA | 15024 bytes |
SHA-256: a7688c69b1c3c96a466fb4b22b9691670754c469d22bfd877b1df9b6a50a4799 |
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