MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=ccnp+security+syllabus+pdf'. This URL is designed to lure users into clicking it, likely leading to a malicious download or phishing page. The document body, though heavily obfuscated, also contains this URL and other benign-looking Shopify links, suggesting a link farm or SEO poisoning tactic to distribute the malicious URL. No scripts were extracted, but the primary attack vector is the embedded malicious link.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=ccnp+security+syllabus+pdf
- http://files.shadowgangs.com/uploads/1/3/0/7/130740049/8061193.pdf
- http://files.quicktan423.com/uploads/1/3/0/9/130969573/detuko.pdf
- http://files.ziaholly.com/uploads/1/3/0/8/130814531/renasabiwibox.pdf
- https://cdn.shopify.com/s/files/1/0432/6601/5400/files/cancer_tiroideo_folicular.pdf
- https://cdn.shopify.com/s/files/1/0435/3989/0327/files/17221671038.pdf
- https://cdn.shopify.com/s/files/1/0427/8219/5879/files/58152453206.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87664315042.pdf
- https://cdn.shopify.com/s/files/1/0433/6533/5190/files/gemotapajazomofaba.pdf
- https://cdn.shopify.com/s/files/1/0434/1461/8262/files/pesogipevolegaka.pdf
- https://cdn.shopify.com/s/files/1/0430/4614/2106/files/kakefugukulusubesafin.pdf
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/event_id_10016.pdf
- https://cdn.shopify.com/s/files/1/0428/8082/7558/files/64029549209.pdf
- https://cdn.shopify.com/s/files/1/0436/0273/9362/files/51095966372.pdf
- https://cdn.shopify.com/s/files/1/0439/1688/6184/files/76689580451.pdf
- https://cdn.shopify.com/s/files/1/0435/5037/6099/files/gate_2020_me_syllabus.pdf
- https://cdn.shopify.com/s/files/1/0437/2591/4277/files/30332783425.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000535e.binc354ed198fbc578360bd2e802b5f4cb64ad23a3268d2f97e4af46619864483e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x535E | 5296 bytes |
font_01_sfnt_off00006572.bin08527442ffc8d713d5059a95c8f404476f50c30e5c6483dcb89f6869ca66b146 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6572 | 9804 bytes |
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