MALICIOUS
162
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 hosting other PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, contains references to the same malicious URL and benign-looking PDF filenames, reinforcing the lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.cc/wb?keyword=brush%20calligraphy%20worksheets%20printable
- http://files.dori-shasha-art.com/uploads/1/3/0/8/130813364/20b8a99d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/2729/1542/files/lowes_carbondale_il.pdf
- https://cdn.shopify.com/s/files/1/0436/4071/7462/files/kulujebarazaz.pdf
- https://cdn.shopify.com/s/files/1/0431/8894/5064/files/steps_involved_in_problem_solving.pdf
- https://cdn.shopify.com/s/files/1/0433/7234/7550/files/65108991032.pdf
- https://cdn.shopify.com/s/files/1/0435/8933/7256/files/zuvaluxezikoxivu.pdf
- https://cdn.shopify.com/s/files/1/0432/3311/6317/files/68610828589.pdf
- https://cdn.shopify.com/s/files/1/0429/6320/6307/files/kawufazo.pdf
- https://cdn.shopify.com/s/files/1/0434/5715/1142/files/69997382623.pdf
- https://cdn.shopify.com/s/files/1/0428/7266/8319/files/neketigumikige.pdf
- https://cdn.shopify.com/s/files/1/0435/8035/8815/files/jitoloperu.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_off00005a3b.bin57e4bcbd5c7305edd743c84e628b4ad5f5c92434eba7ff24f94b4568da92e3b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A3B | 5644 bytes |
font_01_sfnt_off00006d8a.binf0a25434b49a5105c910c4689d8682d525235b4dfeb87f0f6be6b75455fbc5f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D8A | 10404 bytes |
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