MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is further disguised within the document body as a link to academic material. This redirector likely leads to a malicious payload or phishing site. The presence of a visual download button reinforces the lure.
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.cc/pify?keyword=sol+marksheet+2019+3rd+year In PDF document text
- http://files.pariscoc.org/uploads/1/3/1/4/131407704/wufuvevujigu-taruxo.pdfIn PDF document text
- http://files.ethelbustamante.net/uploads/1/3/1/4/131406356/7012749.pdfIn PDF document text
- http://files.oakmont85south.com/uploads/1/3/1/0/131071114/d77b0ae.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0434/7078/2614/files/4838663402.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8935/3117/files/26918597096.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9476/1877/files/kodewuzuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6900/4190/files/exponential_equations_worksheet_answers_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8451/2406/files/xudidemeluzunoragigokef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1564/3042/files/kinesafekuvikilukotonase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2682/4863/files/zepukosa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7152/7325/files/24615794412.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4263/4917/files/nebokonubizopukaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9485/2252/files/56763508150.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7707/4077/files/alphasmart_neo_manual.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.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60F2 | 5616 bytes |
SHA-256: 0f4935f18f75af5f46d8bb69f82d141b1b1bf121e45aa791901a51651b281249 |
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font_01_sfnt_off000073f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73F5 | 6096 bytes |
SHA-256: c54f866859884b7dc4c680f070aced73c88026432d388f4e3a3dd97e9723967a |
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font_02_sfnt_off000083a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83A6 | 10180 bytes |
SHA-256: 0af16a4b887b054ad746463e21b24e9f8220625f9d7ca31f4328ff12904b2526 |
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font_03_sfnt_off0000a657.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA657 | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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