MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though partially garbled, includes text related to a 'timetable' and a URL that is also present in the document body, suggesting a lure. The presence of a callback phishing lure heuristic further supports the malicious intent. 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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=cheltenham+festival+of+performing+arts+timetable+2018 In PDF document text
- http://files.escondidofoundationarch.org/uploads/1/3/2/7/132712508/suvidinakavubowu.pdfIn PDF document text
- http://files.threeaineconsultancy.com/uploads/1/3/1/0/131070125/587526f65.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/1/0448/4051/7793/files/94940688445.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2743/7467/files/388543525.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4754/2175/files/22085948819.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9220/4950/files/89201024330.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2086/0064/files/ketogenic_diet_plan_pakistan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3549/1490/files/kezexufagimomo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9482/7418/files/56831502849.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3905/5253/files/8319316747.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0971/7910/files/68844389515.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2226/2178/files/72194884169.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_off0000588c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x588C | 5844 bytes |
SHA-256: 742c08c6485fba7cce507adcb75125e2182b61ea9df097fff05109d0de644109 |
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font_01_sfnt_off00006c4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C4C | 10644 bytes |
SHA-256: f16e9559089fc4c2695bfa62fd3eba88ca58405d51ef5d08e08a9cfbac99e751 |
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font_02_sfnt_off000090e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90E0 | 16168 bytes |
SHA-256: 794d8cc090a449e0d460036171b2d5b2c749cb0dc3f17972c44626ada68ee3d8 |
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font_03_sfnt_off0000a5e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5E6 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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