MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged for containing a large number of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=stardew+valley+crop+spreadsheet', which is also listed as a malicious redirector. This suggests the primary goal is to lure users to malicious sites. The ML classifier also strongly indicated maliciousness.
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=stardew+valley+crop+spreadsheet In PDF document text
- http://files.foxfarmapiary.com/uploads/1/3/0/9/130969761/3657681.pdfIn PDF document text
- http://files.thebetterbrasspipe.com/uploads/1/3/2/7/132740218/daf3e1d8396c143.pdfIn PDF document text
- http://files.kristindonerstudios.com/uploads/1/3/0/7/130776069/virigokunew.pdfIn PDF document text
- http://files.opulenceboutiquewollongong.com/uploads/1/3/0/8/130813546/bajijuwuvirewoj.pdfIn PDF document text
- http://files.aevamagazine.co.uk/uploads/1/3/0/7/130740018/dupabon.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7851/6885/files/fomadonibulazozegetibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7854/1722/files/fobowuvinedaxebozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4514/3207/files/12189036711.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8352/1445/files/35041184757.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/karazawakuwujolowofo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2004/1886/files/54860192758.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3592/6434/files/jenudirerawilusudunufuxof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zutowujovepenatugipo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8424/2334/files/roserava.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7159/4911/files/relajujilirapem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9197/5580/files/barusorugavadef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6649/1041/files/kedegukevomotolala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0862/9663/files/transparent_hex_color.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78992801071.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000076d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76D0 | 5516 bytes |
SHA-256: 1f61f83dc59e239d9c245c743d56b3f9dd3e683f2e0a60fe0dcd3373a87d3841 |
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font_01_sfnt_off000089a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89A4 | 11684 bytes |
SHA-256: 63951b87485cc230483fe431bafd65ad4c5b33ffc6b871eb89bb316d5f6aecfc |
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