MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wb?keyword=que%20es%20el%20tabaco%20libro%20pdf'. Additionally, it exhibits characteristics of a PDF link farm with numerous embedded URLs, many of which are hosted on suspicious subdomains of 'files.*.com'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same suspicious URL.
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.com/wb?keyword=que%20es%20el%20tabaco%20libro%20pdf In PDF document text
- http://files.cooksontributeb29.com/uploads/1/3/1/4/131452977/5534721.pdfIn PDF document text
- http://files.tagtheartgame.com/uploads/1/3/1/3/131383045/8866082.pdfIn PDF document text
- http://files.danvillepublicworks.org/uploads/1/3/2/3/132303077/vijegizi-lesizob-webob.pdfIn PDF document text
- http://files.nicoledo.com/uploads/1/3/1/8/131871912/dufelope.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/1/0429/6710/5687/files/amazing_spider_man_comics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3617/2710/files/kaxuzeloxabewovava.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8289/8840/files/april_month_current_affairs_2020_in_telugu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suton.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6982/4407/files/79004597205.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0799/1208/files/59951186075.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5625/8454/files/35508610168.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9264/5790/files/airline_alliances.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5430/1338/files/21775784972.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8110/4541/files/13506848998.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1663/2992/files/barcarolle_violin_sheet_music.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d1b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1B3 | 5348 bytes |
SHA-256: 5525fb5ec382d94a5fa1bca69d711101da95bdcc651a9d08ba86283a489dd965 |
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font_01_sfnt_off0000e3df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3DF | 12084 bytes |
SHA-256: b0dcbc9a104e8bc9db57ac5039523d1c0520aeb6f4cd73997f5c2d125cc435ad |
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font_02_sfnt_off00010b36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B36 | 16784 bytes |
SHA-256: a2e7c568e0d56297d23a176e7cac5cb670188a6c260215d691fc5ace57cadffd |
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