MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body contains text related to an 'admit card' and a visual call-to-action, suggesting a lure to trick users into clicking the malicious link. The primary malicious IOC is the redirector URL, which likely leads to further stages of an 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=admit+card+hssc+je+2019 In PDF document text
- http://files.riihannonwilde.com/uploads/1/3/0/7/130776484/lelupavonaja-bulosovanag.pdfIn PDF document text
- http://files.elratontheatre.com/uploads/1/3/1/4/131483148/kiwulufaka-wumex.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/1/0433/0687/7080/files/43396058945.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9888/9621/files/piwowevebuxiwitazabopa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5040/1943/files/ethnocentrism_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/bexano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riginijulu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1234/9334/files/48266540433.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/7548/6115/files/counting_missing_numbers_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/risorisutomunewawudo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4818/0634/files/agreement_on_trade_in_civil_aircraft.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006097.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6097 | 5268 bytes |
SHA-256: 9e85ec2a1eae4ad7718f2d946fe76f8f2da82f201b332dc19a3bbcd6ccf6681a |
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font_01_sfnt_off00007278.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7278 | 10672 bytes |
SHA-256: b9523e470ecd2f2aff12a3d35b7d17904c132733e87b49b6cbe4e7e5beabaa8a |
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font_02_sfnt_off0000972d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x972D | 16092 bytes |
SHA-256: 2c5f1a2e3d9f683f6a217a47aeaaae813f7d4ef732a5ff54a929695507d09140 |
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font_03_sfnt_off0000abf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABF3 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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