MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). The document body, though heavily obfuscated, contains text related to 'microscopes online worksheet answers' and the malicious URL, suggesting a lure to disguise the malicious redirector. The ML classifier strongly flagged this PDF as malicious.
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/pify?keyword=microscopes+online+worksheet+answers
- http://files.atalayasar.org/uploads/1/3/0/7/130776573/8900868.pdf
- http://files.doghairburning.com/uploads/1/3/1/3/131398259/lerudanewigavok_jubaxejobojulat.pdf
- http://padezewi.wabseny.com/uploads/1/3/0/9/130969940/garobafewajusedubi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/5489/0149/files/fraction_word_problems_adding_and_subtracting_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0434/0652/4566/files/rewuxovuxa.pdf
- https://cdn.shopify.com/s/files/1/0428/1057/2967/files/50109825224.pdf
- https://cdn.shopify.com/s/files/1/0451/4299/9194/files/adobe_acrobat_pro_change_to_word.pdf
- https://cdn.shopify.com/s/files/1/0430/1019/5605/files/29509338022.pdf
- https://cdn.shopify.com/s/files/1/0434/3490/1671/files/zepipifedaboliduj.pdf
- https://cdn.shopify.com/s/files/1/0431/3477/9553/files/kijin.pdf
- https://cdn.shopify.com/s/files/1/0429/2847/2220/files/dewareguwudugupemika.pdf
- https://cdn.shopify.com/s/files/1/0437/1375/7339/files/togixepuvi.pdf
- https://cdn.shopify.com/s/files/1/0435/5863/3627/files/lesejoduretutirakenizadu.pdf
- https://cdn.shopify.com/s/files/1/0435/1682/1672/files/woxavar.pdf
- https://cdn.shopify.com/s/files/1/0430/8510/3255/files/45534116593.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_off0000614e.bin48d7fdc38c2816e131d45ee7227d96397eb4208e6277dcd75d1e14c6d7a47254 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x614E | 5180 bytes |
font_01_sfnt_off000072fa.bin619c7d27c251b32b92f2dde1fbf000882995430852a5555831c9700cd2f22979 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72FA | 10320 bytes |
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