MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.com'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, appears to be a lure related to 'pdf historia clinica psicologica'. The presence of numerous external links, including to Shopify domains, suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites.
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.com/wb?keyword=pdf%20historia%20clinica%20psicologica In PDF document text
- http://files.mondayeveningconcerts.org/uploads/1/3/0/8/130813770/85ee8ac57a711c5.pdfIn PDF document text
- http://files.casa-collective.com/uploads/1/3/2/3/132302913/rabepakesimeg_petawagalusep.pdfIn PDF document text
- http://files.lightinyouyoga.com/uploads/1/3/0/8/130814234/palidoguge.pdfIn PDF document text
- http://files.superminiatures.net/uploads/1/3/0/8/130873822/xarebu.pdfIn PDF document text
- http://files.foresightencyclopedia.com/uploads/1/3/1/4/131437504/pexefukigazidiwoj.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/1/0434/4935/2349/files/88917566528.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9027/1638/files/36644942438.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3669/5959/files/43468020715.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6497/5765/files/sixokefoviwasagi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/dipuron.pdfIn PDF document text
- https://vavejesa.files.wordpress.com/2020/06/pilajonapi.pdfIn PDF document text
- https://vopamiwo.files.wordpress.com/2020/07/vimoxiluxikozifabozuzome.pdfIn PDF document text
- https://pifajatomib.files.wordpress.com/2020/07/gogetisodiwo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9730/8840/files/17224473083.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/42701931058.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9927/5935/files/89118027440.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sivuduveserekolagaxabulux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7852/4832/files/norigej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/minirefotapobizezuloxot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4122/5880/files/kirixibidenoluxebiwuvigu.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_off00009f60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F60 | 5088 bytes |
SHA-256: 719a2d01b11d3f07cab1f5703b825ce5708e3c2cbf03fef0d8aa1535b2477855 |
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font_01_sfnt_off0000b092.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB092 | 12336 bytes |
SHA-256: 89f387ebcabb8182fdfdf89d46eb04664f58e55ec6d9036c56fc5709b4b3e11c |
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