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 numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'Ignou bcom syllabus pdf' and the malicious URL 'https://ttraff.com/pify?keyword=ignou+bcom+syllabus+pdf', suggesting a lure to download further malicious content. The presence of a link farm heuristic further supports the malicious intent of distributing links.
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=ignou+bcom+syllabus+pdf In PDF document text
- http://files.penandnapkin.org/uploads/1/3/1/4/131438397/xegeligixumu_zutuveso_wakolenozawa.pdfIn PDF document text
- http://beras.disneystateofmind.com/uploads/1/3/1/4/131453045/2304258.pdfIn PDF document text
- http://files.labsofdemocracy.org/uploads/1/3/1/4/131407281/9055324.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/1/0438/4332/2016/files/55125507602.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5427/7532/files/barreras_y_puentes_en_el_proceso_de_la_comunicacion.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4053/8773/files/nixuxezujejitizegaxowebej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5509/5712/files/niriwoxamut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1415/2607/files/apostles_creed_anglican.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0459/1271/files/kijudetogexozanokimufi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kuwuvovevikusezavufada.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5395/6766/files/sch_access_grade_6.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8984/5671/files/strings_mix_simple_java_solution.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/14224520324.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0803/2922/files/polimerizacion_por_radicales_libres.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/8919/5161/files/kirepubigilafo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9857/0909/files/42043094464.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_006_off0000c80d.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xC80D | 4804 bytes |
SHA-256: 057161defc6aa779f6c24aa230de8ee1a314f02452feff0622dcd1f7521771e8 |
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font_00_sfnt_off00008ead.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8EAD | 5556 bytes |
SHA-256: 545514f5b1d96141ba967255eeb91ea754c79a63804e0614159be6644355cf14 |
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font_01_sfnt_off0000a191.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA191 | 11712 bytes |
SHA-256: 138b0ff0135924354962cdc6cbcbab1dd70b2be393c2ea7c730304638d003683 |
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