MALICIOUS
274
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious File
T1059.001 Command and Scripting Interpreter: PowerShell
The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=lightweight+pdf+reader+for+windows+xp'. This URL is presented within the document body, disguised as a download for a 'lightweight pdf reader for windows xp', which aligns with the 'SE_BROWSER_INSTALL_LURE' heuristic. The PDF also exhibits characteristics of an SEO link farm, with numerous embedded links, including one to 'cdn.shopify.com/s/files/1/0432/1027/7025/files/67500051009.pdf'. The primary attack vector appears to be social engineering, tricking the user into clicking the malicious link under the guise of a software update or utility.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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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.com/pify?keyword=lightweight+pdf+reader+for+windows+xp In PDF document text
- http://files.muskogeecountygenealogicalsociety.org/uploads/1/3/1/4/131437724/fofemuloreku-dajugu-vibokufato.pdfIn PDF document text
- http://bafizob.wildwestrebels.com/uploads/1/3/0/7/130740514/1f76b.pdfIn PDF document text
- http://files.thecbdjunction.com/uploads/1/3/0/7/130739475/297355.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/1/0432/1027/7025/files/67500051009.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bepojarovizezeba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6938/2568/files/gobarosikumup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3858/6518/files/dovegapisu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5724/8421/files/jerawax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3532/0742/files/phpstorm_license_server.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fovurasavelibegesixaga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6809/6661/files/76486215981.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1238/2117/files/garetixifap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7159/4911/files/26645847270.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_off00006cd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CD1 | 5372 bytes |
SHA-256: cbbab4075d478bde1dc4ad6cb2af1c0c5e0299b10d528ff20e1544d4dc7d19aa |
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font_01_sfnt_off00007f35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F35 | 13496 bytes |
SHA-256: dfdd2bc3157c2d69c98bf4b6c7ad49b566781a6794dca7d56d0601aea3cb7a2d |
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