MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, identified as a link farm, designed to redirect users to malicious infrastructure. One of the primary links points to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, contains references to the target URL and other PDF links, suggesting a social engineering lure to drive traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=bari+italy+map+pdf In PDF document text
- http://gopizul.tremontsports.com/uploads/1/3/0/7/130775403/ketiso-lejinibaziw-mimunokewuxoni.pdfIn PDF document text
- http://kowakow.goevangelismos.com/uploads/1/3/0/7/130776891/5c3a230979fb6.pdfIn PDF document text
- http://files.rosevilleacupunctureandmassage.com/uploads/1/3/1/3/131380175/buwedimi.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/1/0431/3917/0466/files/65257208892.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9201/7305/files/83684860086.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3594/1274/files/1532953820.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8191/5802/files/informantes_claves_segun_autores.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8373/4943/files/88739674684.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6542/6598/files/data_structures_and_algorithms_with_python_kent_d._lee.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4423/9510/files/4976603100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0491/1006/files/blue_eyed_cass.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9048/5150/files/cardiopata_de_takotsubo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8917/3411/files/arteria_carotida_anatomia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3754/7929/files/data_mining_and_knowledge_discovery.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9376/1941/files/jemeguvivebokozu.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_off00006825.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6825 | 5160 bytes |
SHA-256: ec9cb777c3d507aa691b6237ece67ef4e44c20108ca1cc20384c47538455a475 |
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font_01_sfnt_off000079a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79A5 | 9964 bytes |
SHA-256: e81cb8b7a5037de8ee2b64d1ed4832dcd0afdfbdd3f519f0113821daf33f6190 |
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