MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=chemistry+notes+for+ssc+cgl+pdf+gradeup'. This indicates the document's primary purpose is to trick users into visiting a malicious URL. The document also contains a large number of external PDF links, many hosted on cdn.shopify.com, suggesting a link farm or SEO manipulation tactic to obscure the malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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.cc/pify?keyword=chemistry+notes+for+ssc+cgl+pdf+gradeup In PDF document text
- http://files.andrewtaegel.com/uploads/1/3/2/7/132712011/gezatomaw.pdfIn PDF document text
- http://files.christineprietoarted.com/uploads/1/3/0/8/130874339/1010004.pdfIn PDF document text
- http://files.ericaevansartist.com/uploads/1/3/1/3/131398281/1197094.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6741/6488/files/befuwagunelalotupivu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4077/5064/files/63595861785.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3224/7457/files/zastone_d9000_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0500/8293/files/10472591797.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7160/2855/files/napuwagogotegamesali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2317/9677/files/min_heap_java_implementation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2860/9186/files/affidavit_of_bona_fide_marriage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5004/8420/files/13934291608.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3039/5552/files/financial_risk_management_strategies.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8330/8955/files/zulobomigodukuveli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0681/9493/files/14842238435.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21086069096.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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fbfd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBFD | 1696 bytes |
SHA-256: c80b935bb2e72fbf0bb54bead4dcf673e2ee9ff5a06d35ab91e29c0786333a85 |
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font_01_sfnt_off00010427.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10427 | 5576 bytes |
SHA-256: ea7ca1ef6fec55e47236320962b5f6c8dc45bdbc0b7130c3e2bd95c2d8d9e017 |
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font_02_sfnt_off000116f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116F7 | 3720 bytes |
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed |
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font_03_sfnt_off0001225a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1225A | 13836 bytes |
SHA-256: 33450220ad4aa1c936e2e44dd89c958211ad2f7b626cc1db5e1035bfb56268eb |
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font_04_sfnt_off00014d67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D67 | 7940 bytes |
SHA-256: 39122102f25ca625576f431391b80b7fe21e23e9d5f92f6081e520c5de605277 |
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