MALICIOUS
152
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 Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=boyle%2527+s+law+worksheet+answers+pdf'. The document body, though partially corrupted, contains text related to 'Boyle's law worksheet answers', indicating a lure to encourage users to click the malicious link. The ML classifier strongly supports the malicious nature of this PDF.
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/pify?keyword=boyle%2527+s+law+worksheet+answers+pdf
- http://nizososiv.acmedogrun.com/uploads/1/3/0/8/130814070/sobabonikojabewuw.pdf
- http://files.intuitivetouchworld.com/uploads/1/3/2/6/132695586/zetovinesun-vimademuli-pasubesusoj-limopagisuzone.pdf
- https://cdn.shopify.com/s/files/1/0436/0860/4829/files/kosawigo.pdf
- https://cdn.shopify.com/s/files/1/0435/5234/2184/files/daroros.pdf
- https://cdn.shopify.com/s/files/1/0429/7018/5879/files/31950046358.pdf
- https://cdn.shopify.com/s/files/1/0429/6556/5589/files/24777171113.pdf
- https://cdn.shopify.com/s/files/1/0430/7546/9473/files/template_blogspot_berita.pdf
- https://cdn.shopify.com/s/files/1/0434/0213/3656/files/16225893702.pdf
- https://cdn.shopify.com/s/files/1/0435/3510/6200/files/62017340783.pdf
- https://cdn.shopify.com/s/files/1/0433/3135/4774/files/78919393892.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_off00005751.bin03c5ee57768739a4fb6dac789217c701b32eaa63f68746ca389ee43891852757 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5751 | 5472 bytes |
font_01_sfnt_off00006a01.bin1cf33cd0be7e481b490995972abf9edd4523ef5b14c67c32726f3570d50ad2d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A01 | 10236 bytes |
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