MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a document about peptic ulcer types. This indicates a phishing or scam attempt. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, but the presence of a malicious redirector and the document's deceptive content strongly suggest a phishing attack.
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=peptic+ulcer+types+pdf In PDF document text
- http://files.brunswicknaturesculpturewalk.com/uploads/1/3/1/4/131437044/789783.pdfIn PDF document text
- http://files.sirkil.com/uploads/1/3/1/4/131455621/8463579.pdfIn PDF document text
- http://files.firstathens.org/uploads/1/3/2/7/132710687/9347935.pdfIn PDF document text
- http://files.cassandrasuareznutrition.com/uploads/1/3/0/9/130969966/3779717.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/1/0427/7387/2807/files/12170470124.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7192/9496/files/dupodiwobeguwesekipu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3151/8622/files/42538674739.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1350/5185/files/noferobepijebofeduluzi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0961/3725/files/fuwubunutelivol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0428/7383/files/55064594193.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6777/6919/files/beowulf_a_new_verse_translation_bilingual_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5875/5749/files/tibiluxinipoliru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2358/0830/files/free_academic_journals.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4188/1254/files/nuxurepepomijafil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7983/5547/files/tiruxataguzufogomevera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0374/8260/files/fundamentals_of_agronomy_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5470/3526/files/xixodumiwulajinivinurosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4948/3426/files/muzikotulinoxilafumap.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_off0000686c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x686C | 5044 bytes |
SHA-256: d13be299f0d402d16958189832bf4c01e81caf6f71e1188e6182dc13b8aa222d |
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font_01_sfnt_off000079ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79AC | 10464 bytes |
SHA-256: 08c194554b85137f63229a1d287b80e4b5613b6d1fff07420e9a9054ba71b8ab |
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