MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, another critical heuristic indicates a PDF link farm, with the primary link also leading to 'ttraff.com'. The document body, though heavily obfuscated, contains the URL and keywords suggesting a lure for a guitar tutorial. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a malicious link embedded within the document.
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=lead%20guitar%20tutorial%20pdf In PDF document text
- http://files.eldoradocartersville.com/uploads/1/3/0/8/130813841/ridupot.pdfIn PDF document text
- http://files.annlansingphotography.com/uploads/1/3/2/8/132814123/896113.pdfIn PDF document text
- http://files.yourwshop.com/uploads/1/3/1/4/131437376/puzukono.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/1/0432/6011/7160/files/lotaki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6704/0154/files/22153714321.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7176/5664/files/cervical_radiculopathy_home_exercises.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2135/1587/files/icar_answer_key_2020_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1548/8163/files/additional_mathematics_text_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6624/4764/files/modelo_biopsicosocial_en_trabajo_social.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4078/5062/files/absli_wealth_secure_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6657/2452/files/duselorawovezakon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1931/3053/files/12254857964.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9289/3093/files/is_11513_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3517/1738/files/additive_manufacturing_technology_applications_and_research_needs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9961/9492/files/21709275159.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0281/3849/files/wutojasepebijum.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d6a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6A7 | 4972 bytes |
SHA-256: ded9261dc95099bf57908fbed0daf3642272e8318243add1d73eb4e6d818c8ac |
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font_01_sfnt_off0000e79a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE79A | 1800 bytes |
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d |
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font_02_sfnt_off0000f028.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF028 | 10352 bytes |
SHA-256: 81978e6572e181271211e6037426d248fd6d071180cf8b2bd3f57b560681c184 |
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