MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
This PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'beginners piano song book pdf'. The primary malicious IOC is the redirector URL, which is likely used to host or chain to further malicious content. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility.
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/pify?keyword=beginners+piano+song+book+pdf In PDF document text
- http://files.toharlev.com/uploads/1/3/0/8/130814758/jebifuzik.pdfIn PDF document text
- http://files.jeniballdesigns.co.uk/uploads/1/3/1/4/131437799/zolafakeb.pdfIn PDF document text
- http://files.forestgardensoap.com/uploads/1/3/2/6/132681767/dopuj.pdfIn PDF document text
- http://files.wagsthedog.org/uploads/1/3/0/7/130775665/5196758.pdfIn PDF document text
- http://files.sosossportsscoop.com/uploads/1/3/1/3/131379113/595594.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/1/0434/7353/5142/files/lefumuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3869/3797/files/rilepugabefiwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8777/4374/files/76323203612.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5792/9621/files/39118225886.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8229/3141/files/52871796333.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0816/3993/files/42567152353.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3654/0069/files/xegovowarakakitelorijero.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/soreluseloxajakikolo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5796/2405/files/97094354060.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8475/0747/files/poker_books_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78476378890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2047/4779/files/atomic_science_minecraft.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7384/0038/files/24664213966.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5195/8947/files/68800289391.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_off00006be2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BE2 | 5428 bytes |
SHA-256: 4b87c67a4f037b2142113554605e2fe628506e6491ab1fc8495904cc372733d6 |
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font_01_sfnt_off00007e68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E68 | 10780 bytes |
SHA-256: f153a550f35ac5052e835240cf12f0c5f6db28e935ea661e84610b2fd48ee98f |
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