MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a large number of external PDF links suggestive of a link farm. The document body, though heavily obfuscated, contains a URL that points to a redirector, likely intended to deliver a second-stage payload. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious verdict.
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.ru/pify?keyword=photoshop+photo+gallery+templates In PDF document text
- http://nusude.operationrv.com/uploads/1/3/0/7/130776031/063e76b9d.pdfIn PDF document text
- http://pafubesel.alexandrahaleyart.com/uploads/1/3/0/8/130874679/2381894.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/1/0431/6345/1560/files/tubirafadipegufivumujifin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4444/5079/files/suzavuvukibofaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6819/4965/files/sikezufipi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7241/2055/files/belapur_housing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6885/8280/files/91715916491.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0708/0610/files/siwenukexox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2561/3475/files/64980272868.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0460/3992/4900/files/free_action_movies_full.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8555/2030/files/63919413166.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7316/6744/files/66090581552.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0195/3952/files/prioritization_delegation_and_assignment.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3325/6345/files/88987925705.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_off00007f2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F2F | 4968 bytes |
SHA-256: 1a71577eba21e75493e7846505b73b6b7146ac46ae8b6a28720f17620c12d71e |
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font_01_sfnt_off0000901f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x901F | 10044 bytes |
SHA-256: d4d3eb8b94ca0a3b56fde6204599ec86b3696023d131041a838fa91f2785d922 |
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font_02_sfnt_off0000b276.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB276 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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