MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, masquerading as a download for 'Acrobat pro dc trial'. One of these links, https://ttraff.me/wix?keyword=acrobat+pro+dc++trial, points to a known malicious redirector. The document body is heavily obfuscated but contains the lure text and the malicious URL. The presence of numerous links and a malicious redirector indicates a phishing or social engineering attack.
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.me/wix?keyword=acrobat+pro+dc++trial In 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/b8c837_ccf468dcf2bc49ac84922b3fc48405da.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_f244d413efbd4490a8a22d3cdf270720.pdfIn PDF document text
- https://static.usrfiles.com/ugd/2274a7_b1223b02d602406c84c586f5fb43e0c7.pdfIn PDF document text
- https://static.usrfiles.com/ugd/ed8107_ef2005769734441896730218fee5c497.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b4609a_bae8686871fa40fdbe232209f5cc7471.pdfIn PDF document text
- https://static.usrfiles.com/ugd/6924eb_4b2ba484dea34fbca0020f716cef925c.pdfIn PDF document text
- https://static.usrfiles.com/ugd/fb41f9_857c6a890c6e4750ae9c98b3ab269ee8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/a467d2_878c0177dabf4fe586716fd3a9f85cd7.pdfIn PDF document text
- https://static.usrfiles.com/ugd/f65175_a66babb060b444a98f8be4b374bd1264.pdfIn PDF document text
- https://static.usrfiles.com/ugd/008e52_121c83eee91d423eb37eba2f247ace54.pdfIn PDF document text
- https://static.usrfiles.com/ugd/db80c5_e1fe25894c524371b72f4cd4f701ec1f.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3463/0554/files/digestive_system_structure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9376/1956/files/likagawurewotupovepe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0469/0444/3040/files/83952831816.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000749c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x749C | 5236 bytes |
SHA-256: 60a0da8404760875dc639e20ffb491823417469a2fb3a7687f1dfc2d799d8d80 |
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font_01_sfnt_off00008706.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8706 | 5016 bytes |
SHA-256: 8ebfffe4aa92809d85559774bd5c2664b056581a4c6d29004fdaa03bdb654dc4 |
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font_02_sfnt_off00009821.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9821 | 10176 bytes |
SHA-256: a29ab672b796ad4297c7b103b3778fc3abc6cdd7e781d7f6f5f87680ac4bce0e |
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font_03_sfnt_off0000bb39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB39 | 16488 bytes |
SHA-256: b88c55219ef84bd2ff48a12f23060c6b86d25efbafe4a8493ce51f9ac91249ff |
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