MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary link, 'https://ttraff.com/pify?keyword=network+security+fundamentals+pdf', is designed to lure users with a seemingly relevant document title. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. The ML classifier strongly indicates maliciousness.
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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PHP webshell / backdoor source high WEBSHELL_PHPThe file contains PHP server-side code with the signature of a webshell/backdoor (request input fed to a command/code-exec sink). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
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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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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=network+security+fundamentals+pdf In PDF document text
- http://boketiw.retrayno.com/uploads/1/3/1/1/131163953/63a4a73d7424b9.pdfIn PDF document text
- http://vexuzuzak.academicbatgirl.com/uploads/1/3/0/7/130776394/fudapukexuxewal_fujilosufe_sugejetufusiv_vuxosomevori.pdfIn PDF document text
- http://files.sagesidley.com/uploads/1/3/1/3/131379223/465678.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/1/0427/5906/1670/files/236147369.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9408/7582/files/copepod_culture.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9058/3464/files/http_filesify._com_wr6jfm_password._txt.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0385/3476/files/54565175121.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8910/0951/files/20068877313.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7909/6728/files/farusatisekinobuwis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2795/4853/files/84734224535.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8131/1132/files/3091093301.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6851/3695/files/vupelurapixirive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8443/9971/files/64596711884.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_off00005ff6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FF6 | 5408 bytes |
SHA-256: a9efd709cb52afe282d1153984fe599f197f1584a1820bac9f3d3b2c4911ac2f |
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font_01_sfnt_off00007269.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7269 | 9784 bytes |
SHA-256: db2f316f1b5b78f8773faf62ca702f30ce0023f5aa1ae4a93ba15b698a7eea60 |
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font_02_sfnt_off000093d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93D4 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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