MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirection and a link farm designed for SEO manipulation. The document body, though heavily obfuscated, contains a URL that points to a redirector, likely intended to phish or deliver a payload. The presence of numerous external links, including a primary redirector, strongly suggests a malicious intent to lure users to external, potentially harmful, content.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/pify?keyword=up+b.+ed+2019+answer+key+date In PDF document text
- http://files.weymedia.net/uploads/1/3/0/7/130740429/sorudatuparapik.pdfIn PDF document text
- http://files.cristinasbridalma.com/uploads/1/3/0/8/130874544/vuparapisid_laparunokobufi_kigumuzuzebu_nukoxugifine.pdfIn PDF document text
- http://volideruk.worldsandgames.org/uploads/1/3/2/8/132816042/4142892.pdfIn PDF document text
- http://files.rohsalgebra.com/uploads/1/3/0/8/130873804/9428143.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/1/0430/7084/9181/files/famekovused.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4379/8683/files/dowidukutuxiwar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9390/7869/files/xuloxazeguvolimigoze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31056735454.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2282/7165/files/neural_networks_and_deep_learning_a_textbook_aggarwal_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1606/1091/files/lijajatinowamimivede.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8792/1313/files/nudojemonasilubefijuba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5497/9477/files/40495473549.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5031/1579/files/free_to_word_doc_converter_registration_code.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/3483/1016/files/cisterna_de_quilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7310/1214/files/repepaxe.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000672d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x672D | 5824 bytes |
SHA-256: 3b917d90327408618a1dafe6ff66c46dee77de172ba30cd9034d906db8f572a1 |
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font_01_sfnt_off00007b22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B22 | 10568 bytes |
SHA-256: 3e6928929fc73c3266bc783d35c8c3dcdf6c40a7ed41ac805ae69fe3051b0ce5 |
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font_02_sfnt_off00009ebf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9EBF | 16092 bytes |
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848 |
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