MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one heuristic specifically identifying a link to a known malicious redirector at 'ttraff.ru'. Another heuristic indicates a large number of external PDF links, suggesting a link farm used for SEO poisoning or traffic redirection. The document body, though heavily obfuscated, contains text related to 'Etica para amador libro pdf', likely a lure to disguise the malicious intent of the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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.ru/wb?keyword=etica%20para%20amador%20libro%20pdf In PDF document text
- http://files.gaithersburgpickleballclub.com/uploads/1/3/1/1/131164024/385595.pdfIn PDF document text
- http://files.missbrittanyteaches.com/uploads/1/3/2/8/132815385/tedudozefexu.pdfIn PDF document text
- http://files.vcgallery.org/uploads/1/3/1/8/131856381/rokererukirejakifu.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/1/0433/0687/7080/files/tinoled.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1044/8795/files/datukogefemi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61051106257.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6844/8152/files/jipusadanobu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8797/8913/files/zajadegifanumi.pdfIn PDF document text
- https://wabufalij.files.wordpress.com/2020/06/makuduxis.pdfIn PDF document text
- https://gagubajugi234726942.files.wordpress.com/2020/06/96215733127.pdfIn PDF document text
- https://vafixumev.files.wordpress.com/2020/06/remewadutus.pdfIn PDF document text
- https://rufutusizuk.files.wordpress.com/2020/06/47062658548.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7754/2823/files/komilorunidanepan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3304/2839/files/bexukenoxafaxafekujumi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1995/2550/files/45695514457.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/turob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nojigepinipefonumupitos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6559/0438/files/xapemixuwikeni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7077/4693/files/didorevewener.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puliwaxaj.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_off00007999.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7999 | 4784 bytes |
SHA-256: f147e5c77ef6b419fd63addf5afe1e1a3051c929ad5d7f3506e49724defd1df4 |
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font_01_sfnt_off000089cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89CC | 12072 bytes |
SHA-256: a528969ef065367f53a4a9b2c7fcaed7964113649d5732af774312a5519e3361 |
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