MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged as malicious by multiple heuristics, including a critical finding of a malicious redirector link and a PDF link farm. The embedded content, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=instrumentation+amplifier+using+op+amp+pdf, which is identified as a malicious redirector. The document's structure and numerous external links suggest a campaign to lure users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=instrumentation+amplifier+using+op+amp+pdf In PDF document text
- http://files.thewackywitchcupcakecandlefactory.com/uploads/1/3/0/7/130739143/053ebd4.pdfIn PDF document text
- http://files.artchaucer.com/uploads/1/3/2/7/132710601/bezox-papep-bosexesokuxuwus-kijetese.pdfIn PDF document text
- http://files.scottyanco.com/uploads/1/3/2/3/132302942/5949817.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/1/0432/1165/3282/files/63355007816.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4841/8973/files/pabizosu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1960/6936/files/12439677662.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5804/4823/files/systems_understanding_aid_9th_edition_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9417/2058/files/mcdougal_littell_algebra_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1442/9608/files/jogunusibezupoxoki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7490/2423/files/calculus_early_transcendentals_4th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2924/9694/files/rambo2_full_movie.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6388/3429/files/71629461498.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6091/9446/files/kasilosolijirus.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_off0000679e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x679E | 5296 bytes |
SHA-256: 28002fbebfe942237ad43edf810b0b0e4fe850d99cacbfebcc66f3bf1a5f5cf1 |
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font_01_sfnt_off00007989.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7989 | 10328 bytes |
SHA-256: e825cdf3b09459c75d1003726c694dc6e6f901dd92c556ea4b1c29d0b5bb5966 |
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