MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as an educational worksheet, aiming to lure users to potentially harmful content. It also features a link farm of numerous SEO-optimized PDFs hosted on Shopify, likely to improve search engine ranking and distribute the malicious payload. The ML classifier strongly indicated maliciousness.
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.com/wb?keyword=amoeba%20sisters%20video%20recap%20viruses%20worksheet
- http://files.dawnasdesignthreads.com/uploads/1/3/1/8/131871740/5404484.pdf
- http://files.spudichlabyale.org/uploads/1/3/0/7/130776673/cd8a6.pdf
- http://niboduvi.asia-days.com/uploads/1/3/0/7/130739835/959b4a6e58f0d05.pdf
- https://cdn.shopify.com/s/files/1/0432/9937/3214/files/caderno_de_desenhos_para_pintar.pdf
- https://cdn.shopify.com/s/files/1/0429/9862/8501/files/pofabaderaratiwunam.pdf
- https://cdn.shopify.com/s/files/1/0448/3599/5808/files/windstad_manor_mod.pdf
- https://cdn.shopify.com/s/files/1/0432/5166/3012/files/media_and_information_literacy_definition.pdf
- https://cdn.shopify.com/s/files/1/0429/8866/7034/files/gasezal.pdf
- https://cdn.shopify.com/s/files/1/0434/1117/7629/files/worksheets_activities_rime_of_the_ancient_mariner.pdf
- https://cdn.shopify.com/s/files/1/0436/3943/9510/files/french_to_english_textbook.pdf
- https://cdn.shopify.com/s/files/1/0430/7202/8823/files/7570195472.pdf
- https://cdn.shopify.com/s/files/1/0437/3243/5093/files/bevorizi.pdf
- https://cdn.shopify.com/s/files/1/0437/4750/8385/files/77361489812.pdf
- https://cdn.shopify.com/s/files/1/0433/2965/0843/files/47501952789.pdf
- https://cdn.shopify.com/s/files/1/0430/3123/2674/files/brute_force_attack_tutorial.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_off00004803.binf327c198eaa6cf7aef0383611960e3e78a515356aa9a64263d6f5d7952db475c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4803 | 5628 bytes |
font_01_sfnt_off00005b0d.bina736a569ec3d4f0149d374c345ba901a5d3f4224d7e79dc097f77c4689182af1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B0D | 9308 bytes |
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