MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious Link
T1566.002 Spearphishing Attachment
The PDF contains a link to a known malicious redirector infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which are hosted on static.usrfiles.com, suggesting a link farm designed to attract traffic. The presence of a visual download button lure further supports a malicious intent to trick the user into clicking the link.
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=al+quran+bangladesh+free In PDF document text
- http://files.texasthundercloggers.org/uploads/1/3/0/8/130813524/bofifuvowumusud_bikoxit_bexujuxufuxa_movewaselerozub.pdfIn PDF document text
- http://rafabun.oneworldcircus.com/uploads/1/3/2/7/132710714/3851081.pdfIn PDF document text
- http://files.angelinternationalmanagement.com/uploads/1/3/1/4/131453636/39541ee40c7e.pdfIn PDF document text
- http://wavat.suerundlehughes.com/uploads/1/3/1/4/131454065/valexubo.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/8b97dd_b77f185e3fe346368491b9b1418f2910.pdfIn PDF document text
- https://static.usrfiles.com/ugd/3be3a7_56cdbadb0b7a42c99a97c673dc252a35.pdfIn PDF document text
- https://static.usrfiles.com/ugd/18122d_8552dab437514f9588f0b35647089f8b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/69b86f_67de115538c94e5f9007e52c569901dd.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5530/0249/files/73081535464.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0083/9842/files/54574539727.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3828/3678/files/tebovixovel.pdfIn PDF document text
- https://static.usrfiles.com/ugd/77941b_627ef1f37f1a41fea29c4afb2f321c2c.pdfIn PDF document text
- https://static.usrfiles.com/ugd/70094d_628b63a1b0ae48d4a9c698236f327c8c.pdfIn PDF document text
- https://static.usrfiles.com/ugd/fedf23_e2bc8dd807374d6e80c3279f16ac44a8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/417718_46330dcd89da4c149e91a12ab987cd6e.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000062cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62CB | 5424 bytes |
SHA-256: e6e4def59e595fe528dee6d01bae0bda4ccba89c09075942f51a024c0e126f26 |
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font_01_sfnt_off00007526.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7526 | 14508 bytes |
SHA-256: 49f024621d778ad3f05ca1f61cb783ec6a9753e93dcbd0617f3bdaf3e1422065 |
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font_02_sfnt_off00009f95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F95 | 14464 bytes |
SHA-256: e3ec68d47fda3a02284b795cb278f91fdb6d11edabef1dd1aa7d7dda942a6e9d |
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