MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The primary redirector URL is https://ttraff.ru/pify?keyword=crystal+report+runtime+version+10.+5, which is designed to lure users with a fake software download. The ML classifier strongly indicated maliciousness, and the presence of numerous SEO-optimized PDF links suggests a link farm used for phishing or malware distribution.
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=crystal+report+runtime+version+10.+5 In PDF document text
- http://files.patprofit.com/uploads/1/3/0/7/130775712/967025.pdfIn PDF document text
- http://files.ellenfridland.com/uploads/1/3/1/6/131637219/vijetuk.pdfIn PDF document text
- http://files.guitarsandbourbon.com/uploads/1/3/1/3/131383837/rukizupezibofaf_suwetepimow_ranuk.pdfIn PDF document text
- http://turux.scottamorris.com/uploads/1/3/0/7/130740062/divutakopotizek_toxanikexawokub_ziboxufa.pdfIn PDF document text
- http://files.dbassettroofing.com/uploads/1/3/2/6/132682990/seloful-jujevimovukivig-biwokosunar-litujevudogubo.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/1/0431/6263/2360/files/4712805132.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3965/3030/files/blue_parrot_headset.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9880/8224/files/60635589491.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3491/0618/files/33949904069.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5244/9435/files/82578637237.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0288/8351/files/74837521807.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2364/6365/files/88709980221.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2228/4960/files/conceptual_chemistry_5th_edition_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7175/7718/files/melelubup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7400/8741/files/depipujavawedogelu.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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_off0000795e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x795E | 6476 bytes |
SHA-256: 6b33ff188d28154d6dbdbf812d80b7b44c2f9bc5adfe8bd5e5c9793c1c79fec7 |
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font_01_sfnt_off00008966.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8966 | 5380 bytes |
SHA-256: 87b503eb224a9d2fdbd2c53c93cf5d8d5d831bf18c0e577da361f2af24521d86 |
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font_02_sfnt_off00009bac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9BAC | 10144 bytes |
SHA-256: b63943201113e216a04fda1c7189ed593c7434edeb5ca19723be59d5f7890ba3 |
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