MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1204.001 Malicious Link
T1566.002 Spearphishing Attachment
The PDF contains a heuristic firing for a malicious redirector link and a link farm, indicating a social engineering attempt. The document body, though heavily obfuscated, contains a URL that aligns with the 'Browser extension / update installation lure' heuristic. This suggests the primary goal is to trick the user into clicking a link that leads to the download or installation of malicious software, potentially disguised as a browser update.
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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.link/wix?keyword=browser+apk+latest+version In PDF document text
- http://gowefib.thorsonpto.org/uploads/1/3/2/6/132696067/9dc36ecc91.pdfIn PDF document text
- http://files.benjaminyeo.com/uploads/1/3/1/4/131438397/06aebc5ef71c.pdfIn PDF document text
- http://files.pgeastteachandlearn.com/uploads/1/3/0/7/130776049/xeditax_bimunejukijumip_ralevuful_zofuniluwirege.pdfIn PDF document text
- http://files.12amphotography.com/uploads/1/3/0/7/130739742/886146.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/097bd5_5814f6feb24f47058506216a162dea4e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/314c35_00b12fa1115c4b3497e7b92c1855dee7.pdfIn PDF document text
- https://static.usrfiles.com/ugd/0f1814_4b6d44ccb20940f9bcf8ddbcc16955fc.pdfIn PDF document text
- https://static.usrfiles.com/ugd/e2c250_da20566baabe45c0975fac3d4aaf2c4d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/a44510_56c6fa99be3e4929928ee2dfeb0b22bd.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9919/3501/files/4868145022.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6901/3144/files/51813461081.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0808/9499/files/71605624572.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6295/9006/files/bowemelimixarusilidi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4183/3635/files/bajirimefoxumamaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4405/2885/files/manodomuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9875/0629/files/46928615154.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2022/1607/files/55091205071.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8165/4679/files/a_hat_in_time_steam_achievement_guide.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_off00006324.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6324 | 5080 bytes |
SHA-256: 5398495791d63a044b356fc4d9e702cb1cba5b8b6ed8820dd0b241976ccb6116 |
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font_01_sfnt_off00007495.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7495 | 10228 bytes |
SHA-256: 4b5c6c1d32d1da29b9dc67be766b1ec5de30595c0a9830f22253d81fe30f47c7 |
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font_02_sfnt_off000097cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97CD | 16092 bytes |
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848 |
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