MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a PDF related to educational materials, likely a lure. The primary malicious indicator is the PDF_MALICIOUS_REDIRECTOR_LINK heuristic, which points to ttraff.ru. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.
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=year+3+addition+and+subtraction+word+problems+pdf In PDF document text
- http://files.the-crib.org/uploads/1/3/2/6/132695554/6677049.pdfIn PDF document text
- http://files.yecsonline.org/uploads/1/3/1/4/131453536/a6e1114.pdfIn PDF document text
- http://files.louisawarren.com/uploads/1/3/1/4/131438098/kutexapajuti-fodibajogilip.pdfIn PDF document text
- http://files.istagesydney.com.au/uploads/1/3/1/4/131438059/sowogeke_genuxovetivuze_datefovolipu_dijef.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0427/8150/7740/files/3937708209.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9524/4452/files/vamanulesigowatekovi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0441/8459/files/s._s._c_sample_question_papers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8921/5129/files/lageli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7492/9308/files/rolesafewazogobed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9889/7574/files/fideveluvorebedes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6758/8252/files/putigorurexelapeka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3813/8783/files/merimaku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4083/3690/files/14939029600.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5619/1893/files/geometric_drawing_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9715/1904/files/melalulomemojena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2311/3119/files/mechanics_of_materials_beer_6th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4785/2959/files/fuguzisu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6888/3098/files/ruvorisulik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5000/0791/files/42987615854.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_off000053de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53DE | 5540 bytes |
SHA-256: f5b276cdccbb5968f4c2762047d7800504d0731007e2d2784da7eb9837e9bf53 |
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font_01_sfnt_off000066a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66A5 | 9408 bytes |
SHA-256: dcd26009506e9826a3e28272e7348cb0d0fc15a0b0adfd3c83a1050c495c607f |
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font_02_sfnt_off000086d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86D5 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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