MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external PDF files, creating a link farm. One of these links, https://ttraff.cc/pify?keyword=piano+books+for+child+beginners+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the same malicious URL and benign-looking Shopify URLs, suggesting a lure to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious verdict.
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=piano+books+for+child+beginners+pdf In PDF document text
- http://files.futsoulacademy.com/uploads/1/3/0/8/130873783/woxadababakam.pdfIn PDF document text
- http://lerovuw.stevedurow.com/uploads/1/3/2/7/132712109/lakugejuwere_xataponud.pdfIn PDF document text
- http://difenobu.wherechangeiscertain.org/uploads/1/3/0/7/130776407/5746772.pdfIn PDF document text
- http://files.edhgs.com/uploads/1/3/1/4/131408529/lujaremokike_nezuki_derunelizaxeti_kelabij.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/5042/5753/files/cabinet_ministers_list_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1288/0544/files/8628371353.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0324/7781/files/gikuvojoxajowurofojixamof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1817/4107/files/magarelagosan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7578/9215/files/dixebesif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rumifagekesodurelakalon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7966/3765/files/perl_hash_reference.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5152/4008/files/9403796293.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2834/9089/files/79324059627.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5598/8374/files/24647513013.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8996/0865/files/56050065951.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1547/0245/files/rikakozatawofokamediro.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_off0000621c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x621C | 5328 bytes |
SHA-256: 4a9587c1d689293ccc3cef4b096074b48a914cab3798559424163a49854c4ac4 |
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font_01_sfnt_off0000741e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x741E | 10620 bytes |
SHA-256: 5ff94693aced18e3948b0ca5ff3e74ac44565958eb428fc6dfd178db1e094c2d |
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font_02_sfnt_off00009864.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9864 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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