MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading a syllabus. This suggests a phishing or social engineering attack where the user is tricked into visiting a malicious site. The presence of a link farm further supports the malicious intent.
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.ru/pify?keyword=esic+stenographer+syllabus+pdf+download In PDF document text
- http://remujite.onebeyondsight.com/uploads/1/3/1/6/131606758/dugazimeri-lovijal-magam-xitavuwagebo.pdfIn PDF document text
- http://bejijox.lanecovedressage.com/uploads/1/3/1/3/131379246/salimat_razusufadube_lesali_vateserabap.pdfIn PDF document text
- http://files.whatdowewantfilms.com/uploads/1/3/0/9/130969370/wegewupawanewidavewe.pdfIn PDF document text
- http://files.janemennigke.com/uploads/1/3/1/3/131398144/4809014.pdfIn PDF document text
- http://files.novamal.com/uploads/1/3/1/8/131871699/a54ebc82b3.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/1/0430/6799/8359/files/58687399804.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3776/9383/files/salabovalepuwezivo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7152/0414/files/60936849154.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7746/8327/files/4270260346.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0355/8564/files/embed_a_in_google_docs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3334/6719/files/lefawe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6936/4631/files/74162652146.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3197/5320/files/7392795542.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9702/2879/files/27718618958.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4532/8808/files/54228671156.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0876/1751/files/2997111089.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0679/5686/files/compound_adjective_exercise.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8026/9462/files/linedozanogikizijodopivo.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_off00006f38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F38 | 5708 bytes |
SHA-256: fa83ddf4c51d9b1b9c50e6fe0a31f745e1807069e6d52c75c032ef28e6745b9c |
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font_01_sfnt_off000082bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82BF | 10064 bytes |
SHA-256: 6974b55cd679c4beab141699d45d6f0d6d07000a61225405d89b297543922bb0 |
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