MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with the primary one directing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL and appears to be a lure for educational content. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests SEO poisoning or spamming tactics.
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.ru/wb?keyword=word%20picture%20recognition%20worksheets
- http://files.melanievanzyl.com/uploads/1/3/1/4/131413485/retetuwe.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/0310/1863/files/xogapidesofesasasaziru.pdf
- https://cdn.shopify.com/s/files/1/0432/0670/5316/files/58990689683.pdf
- https://cdn.shopify.com/s/files/1/0429/4872/2851/files/7506479437.pdf
- https://cdn.shopify.com/s/files/1/0435/0545/1160/files/91646281453.pdf
- https://cdn.shopify.com/s/files/1/0431/0905/6668/files/malicious_sample_github.pdf
- https://cdn.shopify.com/s/files/1/0433/3531/9702/files/attestation_employeur_cpam.pdf
- https://cdn.shopify.com/s/files/1/0431/0361/7173/files/mafebolemeramufixef.pdf
- https://cdn.shopify.com/s/files/1/0429/9276/3039/files/ikea_catalogue_cuisine_2020.pdf
- https://cdn.shopify.com/s/files/1/0438/5538/0630/files/sony_android_tv_4k_mkv.pdf
- https://cdn.shopify.com/s/files/1/0437/9597/2256/files/2014_ford_focus_owners_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/9443/4202/files/79540845543.pdf
- https://cdn.shopify.com/s/files/1/0431/8281/7441/files/arnold_blueprint_to_cuts_phase_2.pdf
- https://cdn.shopify.com/s/files/1/0433/1195/6126/files/74774381380.pdf
- https://cdn.shopify.com/s/files/1/0438/5056/3734/files/60954874400.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000681a.bin519e36eaab63e8044a8f193469f989815cc52df6fd23b8def93d8cf6541d0749 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x681A | 5260 bytes |
font_01_sfnt_off00007a20.bin43d87d778cc7126a1a1413a4bfc1451cd581aa4a986dd425d562f145f54f49dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A20 | 10192 bytes |
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