MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains a high number of external links, many of which are hosted on Shopify and appear to be part of a link farm designed to improve SEO for malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains references to the redirector URL and a Shopify URL, suggesting a lure to download further content. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack.
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=analogue+clock+template+pdf In PDF document text
- http://files.jennsartclass.com/uploads/1/3/2/6/132681443/gurokuwumofugobuw.pdfIn PDF document text
- http://files.artouchconsulting.com/uploads/1/3/1/4/131437249/fbede9273fa1c.pdfIn PDF document text
- http://files.msseniornyecounty.com/uploads/1/3/1/4/131438528/8184698.pdfIn PDF document text
- http://files.lustonline.shop/uploads/1/3/0/7/130738852/sazugolokanezivenate.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/1/0430/8277/6729/files/questar_gas_rebate.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1094/8254/files/guwifosuxiragudixapimakik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7424/1183/files/13702939650.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6611/1638/files/2pac_california_love_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0812/2270/files/8851016515.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1087/2728/files/commutative_associative_and_distributive_laws_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6518/0314/files/41072871843.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8886/1602/files/14604502857.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9829/9813/files/fuxanidigamug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8708/5220/files/kumafuvuj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7990/1096/files/july_month_current_affairs_2020_oliveboard.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2620/3302/files/25717976463.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0211/6772/files/57587664320.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_off000064d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64D1 | 5252 bytes |
SHA-256: 4fada1fe533de42d8aab27cef234ba93267dbed596a99f51cb06bf060cfbee70 |
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font_01_sfnt_off000076ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76AB | 10212 bytes |
SHA-256: 7ab31d63d35d7d712201ed280b4d714a42a073616db76b84fc4c25f43ae8506f |
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