MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=animal+parasitology+pdf', which is a known malicious redirector. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.
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=animal+parasitology+pdf In PDF document text
- http://gawuk.silvacontentsolutions.com/uploads/1/3/2/7/132740494/texapatut-xujupud.pdfIn PDF document text
- http://nuzodamo.williamsremodeling.com/uploads/1/3/1/4/131482975/jagovuwodes-ledos-wogerovupo-gizagasekusogak.pdfIn PDF document text
- http://files.thehearthgp.com/uploads/1/3/0/9/130969356/2823295.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/1/0436/2053/2386/files/62423330927.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7076/6750/files/17321953595.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3552/5282/files/basics_of_computer_applications.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kafojisiguzisov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8065/5775/files/4126871419.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6294/2113/files/rapekirabazuwawiki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4571/5109/files/interstitial_lung_disease_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4930/4742/files/tabufebasuvejusawitaxewab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9898/7941/files/71129358360.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3239/6447/files/tactics_for_toeic_listening_and_reading_test_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20931566490.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3838/9925/files/arabic_alphabet_with_pronunciation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3387/7914/files/nejewedinitovaxemikupavi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9541/7237/files/25258071231.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0061/7381/files/lixitos.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_off000089e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89E6 | 5452 bytes |
SHA-256: 604441e2e23abb46953165094e4bc0b19406001ac0425425391404cb832f5467 |
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font_01_sfnt_off00009c5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C5F | 10752 bytes |
SHA-256: ea8ec5addec962b3d66be728fe49a5fb04da406a8f8358706a17146f185d05fc |
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