MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to suspicious domains and are likely part of a link farm designed to manipulate search engine results. One prominent link redirects to a malicious infrastructure at 'ttraff.club'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains text related to academic worksheets, suggesting a lure to trick users into clicking the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.club/pify?keyword=chapter+12+review+liquids+and+solids+worksheet+answers
- http://files.novalitchicks.com/uploads/1/3/1/8/131859993/12e65404ebf3ab7.pdf
- http://puxuda.blacktidefishing.com/uploads/1/3/0/9/130969077/favutojeluz_gavagogove.pdf
- http://kojusom.fleetvilleswingband.co.uk/uploads/1/3/1/6/131606457/kobaropabij-rakupatuve-suxogeveb-gononisetib.pdf
- http://petivimit.childemotionregulationlab.org/uploads/1/3/0/7/130775565/gasepavurilum.pdf
- http://jowofidig.ezek.com/uploads/1/3/1/3/131398345/9098593.pdf
- http://mofekimam.thelionspack.com/uploads/1/3/1/3/131380733/8b591.pdf
- http://zosozamox.marciasantore.com/uploads/1/3/0/8/130813765/tuwuzulonegimubidop.pdf
- https://cdn.shopify.com/s/files/1/0428/6663/9014/files/25265246387.pdf
- https://cdn.shopify.com/s/files/1/0443/2855/0556/files/27821749230.pdf
- https://cdn.shopify.com/s/files/1/0429/2539/2035/files/jutepevelomakanuguxo.pdf
- https://cdn.shopify.com/s/files/1/0430/5934/7618/files/kusasimeve.pdf
- https://cdn.shopify.com/s/files/1/0427/4552/8487/files/bewexezolawipebax.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000047aa.bin8ae27fba982ffa8e14297f029ed2f30261658724341d7766c99c4798cbae67d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x47AA | 5480 bytes |
font_01_sfnt_off00005a57.bin91080abf53bee553b19b36cdb9197d3d3fe5482ecf70797f6d4a4926321465b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A57 | 10300 bytes |
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