MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and a reference to 'catheter associated urinary tract infection pdf', suggesting a lure. The PDF also contains a mass external PDF link farm, with many links hosted on Shopify, likely to obscure the malicious redirector. The primary malicious IOC is the redirector URL.
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.cc/pify?keyword=catheter+associated+urinary+tract+infection+pdf In PDF document text
- http://files.jjtothethirdpower.com/uploads/1/3/0/8/130813141/faretitutarit_rufoboxal_guwadotipa_sevafasedelesuw.pdfIn PDF document text
- http://files.weddingphotoscyprus.com/uploads/1/3/2/7/132740458/kuxuga-veterob-xufodepofi-kizumajibabel.pdfIn PDF document text
- http://files.evolutionaryconnections.co.uk/uploads/1/3/0/7/130775768/rekofudeguriv-niwafenowimuki.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/1218/4474/files/40938373325.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0796/5345/files/attestation_d_honneur_d_hbergement.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5011/4965/files/bundobust_manchester_menu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3871/0696/files/1543413856.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4315/1272/files/diwovizukapamepumozomataw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0305/1171/files/wukaminalezod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2880/6807/files/armonicos_en_la_red_electrica.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1653/4685/files/xovabatuxaposape.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3015/1330/files/zawofoxekew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5286/7494/files/xefadapojepepepur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8111/3506/files/scofield_bible.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7870/4536/files/80127909612.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6289/4498/files/zowulikemigivaziwop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0438/7750/files/66074854978.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_off000069db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69DB | 5220 bytes |
SHA-256: aa86f8fa961c5496e5fe793d5c786d59b4c151911aa89a3c3f5fc26552e37759 |
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font_01_sfnt_off00007b9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B9E | 10520 bytes |
SHA-256: 7535895041af02b3140fea3b76354ef7fe9f1438fe451b964af126c0fecc02b6 |
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font_02_sfnt_off00009f18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F18 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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