MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains text related to 'Bihar tet exam form 2019' and also includes the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to potentially improve SEO or distribute malicious content.
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.ru/pify?keyword=bihar+tet+exam+form+2019 In PDF document text
- http://files.lewinallergy.com/uploads/1/3/2/6/132696174/3350897.pdfIn PDF document text
- http://files.fhbcfortmyers.org/uploads/1/3/2/6/132680813/fuzogofevajul_narereweti_nuzebopowe_wenifinu.pdfIn PDF document text
- http://files.mindfulserenityonline.com/uploads/1/3/0/8/130874629/pezozulaleku.pdfIn PDF document text
- http://files.bikewritingbuilder.com/uploads/1/3/2/6/132695492/2716741.pdfIn PDF document text
- http://files.cardinalbeadcreations.com/uploads/1/3/0/7/130739340/levusumugelogu.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/1/0428/4517/5971/files/r18_b._tech_cse_ii_year_syllabus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6899/5222/files/gamuzezitupekekezo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8865/0141/files/xobumakisezo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7230/6846/files/65825799660.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3519/7602/files/non_reducing_sugars.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2627/6775/files/44311713063.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7673/0533/files/dumelaxokuwef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1620/9059/files/augmented_reality_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7442/7809/files/pamexetalaveduvekej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5041/7827/files/zusoren.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9753/8203/files/zonaxuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3393/6547/files/75263091360.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_off000060b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60B8 | 5396 bytes |
SHA-256: c70db83d56a22b1faec5144502e1e0078d38997d70719633a5c94cc7c4f28635 |
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font_01_sfnt_off000072fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72FD | 10408 bytes |
SHA-256: 1f863fd0e0091ff1e1be3b27b5fc313a4c8da4beb20fb5038e6fc876e520cc21 |
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font_02_sfnt_off0000969e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x969E | 11044 bytes |
SHA-256: 6c7287389a8040c03fff3a2be3eab9f7504e3cc7b236fe38dfc4d98a9ebdd7db |
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