MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.cc. The document body, though heavily obfuscated, contains references to medical terms and URLs, suggesting a lure to trick users into visiting malicious sites. The presence of a malicious redirector link indicates an attempt to deliver a second-stage payload or phish for information.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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.cc/pify?keyword=myocardial+infarction+ecg+pdf In PDF document text
- http://files.jucheyproductions.com/uploads/1/3/1/6/131606677/jepep-panopazow-jixufimitoraluj-kukajakod.pdfIn PDF document text
- http://files.photographybyphilodell.com/uploads/1/3/1/6/131606284/1688860.pdfIn PDF document text
- http://files.nickiburnett.co.uk/uploads/1/3/0/7/130776795/nuwisud-galimev-gavorifuzawir.pdfIn PDF document text
- http://tedov.volunteerfirefightersassociationoklahoma.org/uploads/1/3/2/3/132303382/add21573d2357b.pdfIn PDF document text
- http://files.thruhannahseyes.com/uploads/1/3/1/4/131453124/6153976.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/1/0430/6190/3517/files/3124647509.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5681/6540/files/juwusabovisurowevateneg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2437/5194/files/kemapozogosimijuzoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7643/5612/files/73822935150.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4021/1105/files/kazine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9744/6818/files/86620056508.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5308/7909/files/nikon_d70_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3654/0069/files/74193186601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3253/4422/files/lazosodiguladup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3480/2333/files/tujobuganagumize.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/lalatulobazalixofopun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0664/7717/files/wurorujab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0230/6468/files/petirekevejizopulunuziru.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_off0000678d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x678D | 5252 bytes |
SHA-256: 19f0b7e7d9c90441b5a26ce30671fb8d0ae77350ef9765191d0dab259f50f2aa |
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font_01_sfnt_off00007986.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7986 | 10228 bytes |
SHA-256: 8ccdf49c25ed7febbd8d4b748c8b611386d7a012ea206817244dca863066dbc8 |
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