MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains this URL and appears to be a lure related to a 'bpssc si syllabus 2020 pdf'. The presence of numerous other PDF links, many hosted on shopify.com, suggests a link farm or SEO poisoning tactic to distribute malicious content. The primary malicious IOC is the redirector URL.
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=bpssc+si+syllabus+2020+pdf In PDF document text
- http://files.cartooncaveman.com/uploads/1/3/1/4/131437149/girojo.pdfIn PDF document text
- http://files.squaredawaypainting.com/uploads/1/3/1/1/131164382/2282454.pdfIn PDF document text
- http://files.karlahelbert.com/uploads/1/3/1/8/131856188/a0900bbf5413d.pdfIn PDF document text
- http://files.dominickmscialabba.com/uploads/1/3/0/9/130969993/sebafep-widemej.pdfIn 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/1/0445/8138/8452/files/geankoplis_5th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6248/5407/files/rapimakubitumuvesodonepi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/josuzafegeda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3791/7345/files/jekuxig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7623/1063/files/57323776819.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6636/8935/files/kuxaxekamovefedemimena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5180/9957/files/39177976793.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8237/5577/files/55957011842.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6559/7342/files/fusionner_plusieurs_en_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7967/0689/files/zoziluluvulipixexoju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejupabofutub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zafon.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 |
|---|---|---|---|
font_00_sfnt_off00006e9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E9F | 5616 bytes |
SHA-256: a8e1f537557210f0b03457d1ca6f7880428e07b29143066743ccb68646b97a5f |
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font_01_sfnt_off000081d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81D6 | 9796 bytes |
SHA-256: 85fff822be11a36a2aa8adb316a95a613f5129e07af573a3fec4dcee9d6dfb23 |
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font_02_sfnt_off0000a397.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA397 | 6408 bytes |
SHA-256: 94e9838f512759ab2003f70217fc0c5d1d364bed658e83c33082bbaacd3bf189 |
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