MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=arterial+blood+gas+interpretation+made+easy+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0429/7211/9199/files/vuxolamoforonavawe.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting the primary intent is to redirect the user to malicious content.
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=arterial+blood+gas+interpretation+made+easy+pdf In PDF document text
- http://files.vbsmontecarlo.com/uploads/1/3/0/7/130739154/parow-wajuwojibapasek-lekirasugagufum-ledajifujemuf.pdfIn PDF document text
- http://files.flickcoaching.com/uploads/1/3/1/1/131164308/8413577.pdfIn PDF document text
- http://files.sjraise.org/uploads/1/3/1/4/131452878/ritorevovafufux-xutokegaperolu-letamixix-luwov.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/1/0429/7211/9199/files/vuxolamoforonavawe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7482/2044/files/6533160780.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9352/2587/files/rusemidikuwojo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6574/5314/files/gerumisuli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8155/5350/files/xixeraxunutazirorijive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3353/4357/files/34597878338.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3192/8740/files/ladijoji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0426/4601/files/91096294462.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/html_to_javascript_jsfiddle.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1373/4563/files/bella_s_lullaby_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9925/1093/files/marcus_aurelius_meditations_english.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_off00008582.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8582 | 3184 bytes |
SHA-256: 26cd4b7c216739b2855cf77b0882590b680568829e9e0af8426bb36846f61eed |
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font_01_sfnt_off000090d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90D7 | 5592 bytes |
SHA-256: b9f5f78398c49d19972006c99434b61a7218caa11587e45acc91e103b30a0d55 |
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font_02_sfnt_off0000a3c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA3C7 | 14900 bytes |
SHA-256: a4fac698f5265b0caf92ff97595acf7cb67c767a457e038d1615c3f95ad1236f |
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