MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary link, 'https://ttraff.com/pify?keyword=basic+english+words+in+tamil+pdf', is identified as a malicious redirector. Additionally, the document body contains obfuscated text and a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO poisoning or malware distribution. No scripts were extracted, but the presence of the malicious redirector and the link farm strongly indicate a phishing or malware delivery attempt.
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=basic+english+words+in+tamil+pdf In PDF document text
- http://files.perfectlyimperfectcollegian.com/uploads/1/3/1/3/131379828/6142017.pdfIn PDF document text
- http://files.dancingtribescotland.com/uploads/1/3/1/4/131406811/0895a.pdfIn PDF document text
- http://gakesigum.bfstrings.com/uploads/1/3/1/6/131606289/razupo.pdfIn PDF document text
- http://fedorahosted.org/lohitIn 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/1/0432/1506/1153/files/65095893373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0500/8293/files/rejowifixek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6225/5013/files/sedawasifurijanirabo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5381/6728/files/guvozu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7319/8497/files/rectas_y_angulos_primaria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4130/0380/files/brown_bear_brown_bear_activities.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9464/7719/files/sisonesufonawugub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/0257/2437/files/consumer_reports_zero_turn_mowers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0665/6666/files/33249356097.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6050/1407/files/zapaxuvomuga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7475/4462/files/adobe_acrobat_reader_download_windows.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6936/5654/files/45150206866.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2051/7537/files/niperuni.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off00009188.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x9188 | 17540 bytes |
SHA-256: 018ff515f5e0b7fc6a4f284f2a062531ff2e6f82e5de76ede897acb9a1e80672 |
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font_00_sfnt_off00007e44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E44 | 5712 bytes |
SHA-256: a0e24d1622ba35b936e713e3257911e65630faf7fcb3bae394a6601a7aed9433 |
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font_02_sfnt_off0000b942.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB942 | 13368 bytes |
SHA-256: 1e1bd93c5a8045976923a1e6a81a229c521bf3218061ff6bb70284bad1670605 |
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