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, directing users to a URL that appears to be part of a link farm. The document body, though heavily obfuscated, contains text related to 'febrile neutropenia guidelines' and the authoring application 'wkhtmltopdf', suggesting a lure. The primary malicious IOC is the redirector URL, which likely leads to further 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.link/wix?keyword=febrile+neutropenia+guidelines+in+children%252B+ppt In PDF document text
- http://piwetipu.rightseed.com/uploads/1/3/1/4/131483254/surabasikapixur.pdfIn PDF document text
- http://files.mosssnowsticksouthpacific.com/uploads/1/3/0/8/130813855/mikimewumipi.pdfIn PDF document text
- http://gazol.conniecycling.com/uploads/1/3/1/4/131454950/direwokog_zemajipo_gewilazedi.pdfIn PDF document text
- http://files.holisticlifeabundance.com/uploads/1/3/1/8/131856392/566506fc3faefbb.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/ac51ce_4963073604a849449f14773fab687b66.pdfIn PDF document text
- https://static.usrfiles.com/ugd/10e3af_5f8059b11f3548a9b7d6ed25e9e0965c.pdfIn PDF document text
- https://static.usrfiles.com/ugd/1a1092_d50f42cee23b48aa86bb9432c10519bc.pdfIn PDF document text
- https://static.usrfiles.com/ugd/5ad03d_b876d664a73a48b9b04e5a7cac9180cc.pdfIn PDF document text
- https://static.usrfiles.com/ugd/9058e5_910591474e0644ff8197e227e9ca9cfc.pdfIn PDF document text
- https://static.usrfiles.com/ugd/7a13df_f96441fa4ff745a9baccdc43b8486f6b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/6f53d7_c53c90509ade4f14aa6ac58ddf775d3b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/e2c223_cdbbd5c440d2458d943c0acfbf557660.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1339/7913/files/togikojojolitogulubate.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9524/5475/files/26071447163.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/2217/7688/files/pumpkin_carving_templates_haunted_house.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8022/9791/files/ed_sheeran_supermarket_flowers_piano_sheet_music.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_off0000c7a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7A8 | 1984 bytes |
SHA-256: cb2bf467ef3cceb67f483b54a92440a84ce88ba2d2d36493eb0bdbe9c7406dc1 |
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font_01_sfnt_off0000d11c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD11C | 5432 bytes |
SHA-256: d4be1bb0ad456376910174557998510be2ab062266c0fc37e1cb0605637bbdef |
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font_02_sfnt_off0000e381.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE381 | 15120 bytes |
SHA-256: 57259e6876097878c577c227eda8a3dda0b1f192e8eaec3603cffe19434751ba |
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