MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or malware distribution attempt. The embedded URL and link farm point to `https://ttraff.ru/pify?keyword=principle+of+centrifugation+technique+pdf`, which is flagged as a malicious redirector. The document body, though partially corrupted, contains text related to centrifugation techniques and the wkhtmltopdf application, likely as a 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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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=principle+of+centrifugation+technique+pdf In PDF document text
- http://mepeno.ivethcaruso.com/uploads/1/3/1/8/131856158/4749983.pdfIn PDF document text
- http://files.somethingsafoote.com/uploads/1/3/0/7/130739776/lilafam.pdfIn PDF document text
- http://files.seattleshoulderdoc.com/uploads/1/3/0/9/130969985/novukakixapapepeja.pdfIn PDF document text
- http://files.givingsquared.com/uploads/1/3/1/6/131637218/kolib_gevubululivoj_gopugopu_pagedibaro.pdfIn PDF document text
- http://files.teachersfortomorrow.net/uploads/1/3/1/6/131606789/sisifoso.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0434/3123/1637/files/skip_beat_live_action.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8131/1132/files/16535672228.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5731/3957/files/leaders_are_both_born_and_made.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9879/0301/files/kemalobidivuxegikaxufo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4069/4684/files/kitavudozeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7741/7625/files/80033293307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6415/6582/files/spread_offense_run_plays.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9693/2501/files/999023358.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4671/5040/files/23242392559.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0512/4516/files/bavomitesema.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9920/2467/files/sudovisusuwazenumagamiwu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007856.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7856 | 5248 bytes |
SHA-256: ce436d75687788507441822949ffd17873489a2ef684c1fd511f110157e06c3a |
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font_01_sfnt_off00008a0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A0F | 10092 bytes |
SHA-256: 0177ccdca656c5f1d63be8747094714fa93c72ac5db862ce0f8e37b76515d73c |
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font_02_sfnt_off0000ac7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC7B | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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