MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at `https://ttraff.cc/pify?keyword=adobe+sketch+apk+free`, suggesting an attempt to direct users to malicious content. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on `cdn.shopify.com`, which are likely part of a link farm designed to improve search engine ranking for malicious content. 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=adobe+sketch+apk+free In PDF document text
- http://files.mrescience.net/uploads/1/3/1/1/131163872/fubaxe.pdfIn PDF document text
- http://tajizo.laurafrasca.com/uploads/1/3/2/8/132816066/4208265.pdfIn PDF document text
- http://mimik.southcalgarymedicalclinic.ca/uploads/1/3/0/9/130968984/139178.pdfIn PDF document text
- http://files.nlpedinburgh.co.uk/uploads/1/3/1/1/131164473/2dd2e6a0638b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0473/1300/files/29980263962.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8260/3927/files/78524215550.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/6490/6148/files/18_regions_of_the_philippines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8905/8209/files/38628105511.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5665/9621/files/basic_english_test_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2522/6133/files/29422846958.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7841/6539/files/twenty_eight_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1434/9215/files/xanaro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1451/9966/files/55062571017.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5209/5898/files/57547748797.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2929/1427/files/basic_programming_language.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3062/5950/files/wedipikutajigum.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
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006819.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6819 | 5404 bytes |
SHA-256: e5b24813243043d66441b4e44ae77efa7be55acb8bfefbeb3bb16ba6884795ae |
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font_01_sfnt_off00007a6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A6A | 11388 bytes |
SHA-256: f82e3d3241a52dd598aa1965fc5a3f29a75c1300f3316511cbf81bb3715d9599 |
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font_02_sfnt_off00009a33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A33 | 10360 bytes |
SHA-256: 2a3f92be174f7a02bf3aa2ac59c22f866e2bdc65def49edf5590acfb715b026d |
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