MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or redirection scheme. One prominent URL, https://ttraff.ru/, is identified as a malicious redirector. The document body, while containing seemingly educational text, is likely a lure to encourage users to click these malicious links. No scripts were extracted from this sample.
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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/wb?keyword=important%20questions%20for%20class%2012%20cbse%20chemistry%20chapter%20wise%20pdf In PDF document text
- http://files.guerasboutique.com/uploads/1/3/1/6/131636972/vuroluzelax.pdfIn PDF document text
- http://files.movefreelet.com/uploads/1/3/1/8/131856950/siranojez.pdfIn PDF document text
- http://files.carolglasser.com/uploads/1/3/0/7/130776247/e07be82.pdfIn PDF document text
- http://files.changingfutures.org.uk/uploads/1/3/1/6/131606087/mufegesitawiko-matuwomap-xivekun-vokozufeletefuz.pdfIn PDF document text
- http://files.hreynoldsdesign.com/uploads/1/3/0/8/130814423/xurojibavef-fupufubulon-lowenamov-lomutirinimov.pdfIn PDF document text
- http://files.just-verandas.com/uploads/1/3/1/3/131379045/xobuxisedujus_wekabod.pdfIn PDF document text
- http://files.brandonmoorecomposition.com/uploads/1/3/1/4/131438766/muxigem.pdfIn PDF document text
- http://files.evanzappel.com/uploads/1/3/1/3/131384552/1e5d1f14ea.pdfIn PDF document text
- http://files.cfhsperformingarts.com/uploads/1/3/0/9/130969830/4446236.pdfIn PDF document text
- http://files.yourlocalartists.com/uploads/1/3/2/7/132712251/fujaviro_gorivegogasol.pdfIn PDF document text
- http://files.craigleacapetown.com/uploads/1/3/0/7/130775846/90bc7de4.pdfIn PDF document text
- http://files.statebirdtogo.com/uploads/1/3/2/7/132710687/a1b067.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://diwegola.files.wordpress.com/2020/06/36472710356.pdfIn PDF document text
- https://jofuguxidag.files.wordpress.com/2020/07/34170336404.pdfIn PDF document text
- https://satebelofoxo.files.wordpress.com/2020/06/34218251782.pdfIn PDF document text
- https://mulanarojed.files.wordpress.com/2020/06/finikalukurigejag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mirizopenifipometetotagoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006656.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6656 | 5856 bytes |
SHA-256: 5d1e5072afcaba5aaeeeba132511d3da67e38489e77674a54ae5571f550e1988 |
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font_01_sfnt_off00007a24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A24 | 10288 bytes |
SHA-256: 8058cf7e31bd20b0af3be1eb710d84425e6f2270808a92bd9d4359a777d59ea7 |
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font_02_sfnt_off00009d31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D31 | 16164 bytes |
SHA-256: 0d7a92828fb34c46272def7401d297891c72c028a4bdfa4d2814ce18bde6b281 |
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