MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, with the primary link pointing to a known malicious redirector. The document body text, while heavily obfuscated, contains the malicious URL and appears to be a lure related to sheet music. The ML classifier strongly indicated maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to malicious infrastructure.
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=butterfly+waltz+piano+and+violin+sheet+music+free In PDF document text
- http://files.nutricionbasadaentrofologia.com/uploads/1/3/1/8/131856646/8176615.pdfIn PDF document text
- http://files.noon2moon.com/uploads/1/3/0/7/130775727/ginalokasofu_mufujijigofo.pdfIn PDF document text
- http://files.wnyata.com/uploads/1/3/1/0/131069950/7471704.pdfIn PDF document text
- http://fadez.maggiegreenwayart.com/uploads/1/3/1/4/131438003/2076b.pdfIn PDF document text
- http://tubok.rosemarygallagher.com/uploads/1/3/0/8/130814328/lokabupaw.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/1/0431/5712/7336/files/arabic_letters_to_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0466/3951/3765/files/jessie_s_girl_mary_lambert_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9592/4640/files/riwimadumafaxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8115/2152/files/leetcode_number_of_islands.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xasaxikopakepiditewevumub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4504/4892/files/apstolos_augustus_nicodemus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6576/1176/files/50095378742.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6107/6387/files/blowin_in_the_wind_piano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9102/4277/files/51118224375.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7863/1072/files/24836023300.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0730/2037/files/2005_dodge_durango_repair_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3608/0288/files/47680849540.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5323/6902/files/79998920464.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8434/9591/files/famoxonefejodepebekiba.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_off0000582a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x582A | 5748 bytes |
SHA-256: c45364d0602d152a957554fd540f30a6b7bbbeeb4ec670d273093f19f6b4c9e4 |
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font_01_sfnt_off00006bae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BAE | 15340 bytes |
SHA-256: 32b7b8661c4adfa6c71b1acfced315dc471badc89f6b8f1ee594cdf0119eadf9 |
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