MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious Link
T1059.003 Windows Command Shell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=chapter+18+endocrine+system+worksheet'. Additionally, the document body contains text that appears to be a worksheet lure, instructing the user to interact with URLs. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document may also attempt to trick users into executing commands. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm strategy to distribute malicious content.
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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.cc/pify?keyword=chapter+18+endocrine+system+worksheet In PDF document text
- http://files.llanfairps.com/uploads/1/3/1/1/131163890/3452510.pdfIn PDF document text
- http://wired.cdsscouncil.com/uploads/1/3/2/6/132682883/39320045e8.pdfIn PDF document text
- http://sotuv.somedaynewfoundlands.com/uploads/1/3/1/8/131857054/xurezanukatafonitur.pdfIn PDF document text
- http://files.dragonninjawriter.com/uploads/1/3/0/7/130739835/894448.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0427/8219/5879/files/92693827451.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6807/0824/files/jugotebixerizerapugu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9229/6359/files/46163746584.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8340/6239/files/agricultural_science_textbook_for_primary_5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3330/4986/files/sosodutetova.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6389/2375/files/glencoe_precalculus_student_edition_advanced_math_concepts.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4621/4564/files/29488884135.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2131/0875/files/42046868959.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6350/0197/files/pewudid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0944/1953/files/suwuvilegovuso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2235/8427/files/86281901075.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9617/8849/files/tujepitekopesifejur.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_off00008e88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E88 | 2144 bytes |
SHA-256: 2da9586c5cf4a96ee1ba037b4a41e89f2706513496dc2986fc99905fd012730c |
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font_01_sfnt_off00009870.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9870 | 5692 bytes |
SHA-256: 3b8ce2390e7794e479c7dae6751e405347a2ec4d58fb835338e0a2a590e28b25 |
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font_02_sfnt_off0000abb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABB8 | 10208 bytes |
SHA-256: e0a405877de2ca64828d2b70516dd8bdec2718e4562576957477e7619712d758 |
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