MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm and a malicious redirector URL, indicating a phishing or social engineering attempt. The document body, though heavily obfuscated, contains the malicious redirector URL and references a PDF download, aligning with the heuristic findings. The primary malicious URL is https://ttraff.cc/pify?keyword=ashok+kumar+singh+english+grammar+pdf, which likely leads to further malicious content.
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=ashok+kumar+singh+english+grammar+pdf In PDF document text
- http://files.hellorichmond.org/uploads/1/3/2/7/132712306/7975896.pdfIn PDF document text
- http://files.edgrasso.com/uploads/1/3/0/8/130874030/vajekerogunepifopaw.pdfIn PDF document text
- http://files.bluesandbeer.org/uploads/1/3/1/6/131607163/solozuxare.pdfIn PDF document text
- http://files.atreeanditsfruit.com/uploads/1/3/1/4/131438477/7798059.pdfIn PDF document text
- http://fancli.com/193mk5In 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/1/0433/0127/3758/files/14646860517.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6368/0929/files/24766862114.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7578/8188/files/zusaxusuroxirot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5721/6678/files/mujazukisawowofarixawosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2104/0792/files/12836929581.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6004/4710/files/tifotisip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7003/6904/files/ors_ogden_utah.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/8307/6518/files/adverbs_of_manner_exercises_1_eso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6053/5196/files/diseases_of_digestive_system.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0956/3045/files/megaloblastic_anemia_in_pregnancy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9464/6689/files/20527725601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8611/1137/files/97008671609.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.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_off0000528b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x528B | 5508 bytes |
SHA-256: 65c3debe2e8424a29cc54fccc3c744ffce4b3696c744c93fd9c6cccdb8a49058 |
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font_01_sfnt_off0000651c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x651C | 10068 bytes |
SHA-256: 2c8d6f5abab6c96e772e60ede2f6d431d6855a92013079207eeb1588302f3e42 |
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