MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as a "happy birthday piano sheet easy pdf". The link at https://ttraff.cc/pify?keyword=happy+birthday+piano+sheet+easy+pdf is a known malicious redirector. The document also contains a large number of SEO-optimized PDF links, many of which point to Shopify domains, suggesting a link farm or content stuffing tactic. The ML classifier strongly flagged this PDF as malicious.
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=happy+birthday+piano+sheet+easy+pdf In PDF document text
- http://files.kirkmarlenespain.com/uploads/1/3/0/7/130740298/5564514.pdfIn PDF document text
- http://sewasim.ldupholsterymaui.com/uploads/1/3/0/8/130814328/05f914046a972e6.pdfIn PDF document text
- http://files.keplex.us/uploads/1/3/1/4/131437669/7181013.pdfIn PDF document text
- http://files.morethanatourist.net/uploads/1/3/2/6/132681164/zarodufewiz_rinuj_wamujaxajide.pdfIn PDF document text
- http://files.antoniodavidsinopoli.com/uploads/1/3/0/8/130873907/4090271.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/1/0430/3683/5993/files/shark_euro_pro_x.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5453/7624/files/anemia_falciforme_ministerio_da_saude.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3938/3971/files/amazon_fire_5th_generation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7645/9422/files/9215540290.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8558/4802/files/bon_mot_meaning.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7940/1632/files/baxetijefoworinak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7431/3621/files/bncc_ed_infantil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/5708/0472/files/pdf_ausfllen_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1520/8098/files/wet_hands_minecraft.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8939/3816/files/java_ee_7_oracle_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5915/1009/files/13980588881.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_off00006650.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6650 | 5300 bytes |
SHA-256: 556e694d20780b259e43843105a3c12d1c1084ef4ba55e4f93c6684d71d5d4ac |
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font_01_sfnt_off0000784d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x784D | 10316 bytes |
SHA-256: da1238db844ab220f0381e1a0bbf42eecb97a5b2055bc481befd8902cee4c66e |
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