MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that appears to be a lure for free piano sheet music, likely a pretext for phishing or malware distribution. The ML classifier strongly indicates maliciousness, and the presence of redirector links supports a phishing or social engineering attack pattern.
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.cc/pify?keyword=ballade+pour+adeline+piano+sheet+beginner In PDF document text
- http://files.mwmbg.org/uploads/1/3/0/8/130814258/7ccf8f83d9e28b.pdfIn PDF document text
- http://files.scottrobesoncustomwood.com/uploads/1/3/1/8/131872238/xolunelefigasif_gowunenovujif.pdfIn PDF document text
- http://topemaru.cedarkeycommunitygarden.org/uploads/1/3/0/8/130874388/450300.pdfIn PDF document text
- http://vutuba.royalmarineser.com/uploads/1/3/1/8/131871787/zamazarasa.pdfIn PDF document text
- http://kazif.ftjbymelissa.com/uploads/1/3/0/7/130776542/803e7589.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/1/0428/9472/1187/files/kesovemupizakadolidi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3477/1607/files/40480549091.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1906/7815/files/dirurubeta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0836/0611/files/trader_vic_s_bartender_s_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7555/0876/files/wogapijejalovovutowev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6861/1989/files/certyfikat_kompetencji_zawodowych_ksika_2018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7777/1164/files/25129189997.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2574/4540/files/tazukum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4276/4962/files/indore_master_plan_map_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8567/6188/files/us_lottery_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8645/3663/files/snes_co_op_games.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9027/1642/files/luwememuziki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9468/8412/files/jusalu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3815/4653/files/brick_bonding.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9619/5737/files/helen_of_troy_movie_parents_guide.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_off00005d60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D60 | 5408 bytes |
SHA-256: a736b89307be02829d99c41ca344e0abf294f8b0f0331f22e9f269d9c1ad3ab3 |
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font_01_sfnt_off00006fae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FAE | 13048 bytes |
SHA-256: daafa2cb31236a907604e45d388e0ca2b72ea4554a3255331161c591e81e0e1f |
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