MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=ringing+bells+app'. Additionally, it exhibits a PDF link farm behavior, with numerous embedded links to external PDF files, many hosted on Shopify. This suggests a tactic to either distribute malicious content or manipulate search engine results. The ML classifier also strongly indicated maliciousness.
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.ru/pify?keyword=ringing+bells+app In PDF document text
- http://files.thelifeofmrstucker.com/uploads/1/3/1/4/131438604/bumurejudanemenaveb.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/1/0430/9801/3850/files/5004216126.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2753/6799/files/4350709926.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6394/3067/files/caller_id_theme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1796/8543/files/calculus_early_transcendentals_7th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0118/3384/files/wunosokoditakot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0458/5658/7929/files/guia_autometrica_mayo_2019.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0483/6515/files/agar._io_free_online_no.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6640/0663/files/jaxogogopa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1306/3327/files/46912435621.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5479/1846/files/79722440402.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bokowolexom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4829/6857/files/acca_p4_summary_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0687/0183/files/momipatanoniw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5820/7643/files/st-_10_form.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61AB | 5040 bytes |
SHA-256: 7b000e83f460db6dcab32cdf2cf04d9cf5cb527b3c7e7d4edfd5e7a45b4735b4 |
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font_01_sfnt_off000072db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72DB | 1800 bytes |
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
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font_02_sfnt_off00007b68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B68 | 10068 bytes |
SHA-256: 9c60645a3acafddf04beb5753235d9b3bebdfdc82c96e742922656886ab6f362 |
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font_03_sfnt_off00009e11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E11 | 16376 bytes |
SHA-256: 069f5cdcb972b33999f3dc18a3e5b847fc2aa024b7c5b45b4734cedf253a8e5c |
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