MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=presbyterian+healthcare+services+annual+report+2018'. This URL is designed to lure users by mimicking a legitimate report title. The file also contains a large number of embedded links to external PDFs hosted on Shopify, which is indicative of a link farm. No scripts were extracted from this sample.
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=presbyterian+healthcare+services+annual+report+2018 In PDF document text
- http://files.compcog.com/uploads/1/3/1/3/131383860/gegubinaxi_biketu.pdfIn PDF document text
- http://files.advancedurbanmarginality.com/uploads/1/3/1/3/131383586/7515916.pdfIn PDF document text
- http://files.pensacolacraftbeer.com/uploads/1/3/2/6/132695887/xezujunarita.pdfIn PDF document text
- http://files.douglasyassen.com/uploads/1/3/0/7/130775337/992847.pdfIn PDF document text
- http://files.pokornychiropracticclinicsd.com/uploads/1/3/1/6/131636746/toletumarilalen-goraxewo.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/1/0430/6308/3162/files/wopexupunaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/85409494139.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4655/2230/files/43650955025.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8998/3643/files/oblivion_cure_vampirism.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0496/8603/files/vuzuwowewawarozejoxilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9980/8149/files/78578994097.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98048873934.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6657/2452/files/bevipubidejukidiwuri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3298/4222/files/rupiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3279/5541/files/87090068948.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1506/1153/files/83988876738.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3128/8218/files/pinavaforoduxegijowuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4925/4041/files/differential_calculus_by_shanti_narayan_and_pk_mittal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0512/4516/files/budgeting_and_planning.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_off00006547.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6547 | 5844 bytes |
SHA-256: 15608b5b9d45d55f255689809d4722e111ddd9b55047e4c2111497970615ec3e |
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font_01_sfnt_off00007923.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7923 | 14636 bytes |
SHA-256: e42bbcccc71be11ff5a3699bd09016a8a76bb9386a62a907d9266c7d09b30178 |
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