MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one pointing to a known malicious redirector, and is flagged by heuristics as a malicious redirector and a link farm. The document body, though partially corrupted, suggests a lure related to an academic paper answer key. The presence of embedded URLs and the overall structure indicate an attempt to drive traffic to malicious infrastructure, likely as part of a phishing or scam campaign.
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=cds+2019+english+paper+answer+key
- http://files.simixairconditionercoating.com/uploads/1/3/0/8/130815277/f7e5e25cb526a4d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdf
- https://cdn.shopify.com/s/files/1/0437/4754/1146/files/52802611766.pdf
- https://cdn.shopify.com/s/files/1/0429/9508/9559/files/zazat.pdf
- https://cdn.shopify.com/s/files/1/0431/3966/1986/files/50337672353.pdf
- https://cdn.shopify.com/s/files/1/0428/5199/1719/files/kegem.pdf
- https://cdn.shopify.com/s/files/1/0427/5381/8790/files/88646269.pdf
- https://cdn.shopify.com/s/files/1/0434/6331/1520/files/9017187275.pdf
- https://cdn.shopify.com/s/files/1/0437/3803/8423/files/vumivevopenetiparetati.pdf
- https://cdn.shopify.com/s/files/1/0429/3846/6467/files/resivikowanexitenuf.pdf
- https://cdn.shopify.com/s/files/1/0433/6851/3686/files/urban_survival_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/6440/9764/files/12367988471.pdf
- https://cdn.shopify.com/s/files/1/0439/8986/0510/files/howto_get_anime_back_on_vyond_github.pdf
- https://cdn.shopify.com/s/files/1/0434/4214/3388/files/fonabalozinegokuselo.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_off00006ff2.bin22ada3bc1216b36e2b4c6dde31afa3f349ddeca210e442caac5a29fbff701764 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FF2 | 5868 bytes |
font_01_sfnt_off000083f3.bin9b86a829e452e5b0202e2d8a829bffdeeba9a59eab0e4e96f81ecce37518767f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83F3 | 14664 bytes |
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