MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure, specifically 'ttraff.com'. It also exhibits characteristics of a PDF link farm, containing numerous external links, many hosted on Shopify. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=english+grammar+pdf+book', which likely serves as a lure to distribute further malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.com/pify?keyword=english+grammar+pdf+book
- http://files.ashevilletrafficsignrental.com/uploads/1/3/1/4/131407148/367851.pdf
- http://files.joanlovesbis.com/uploads/1/3/1/8/131857390/b0bff23e29fa.pdf
- http://files.weddingdjcotswolds.com/uploads/1/3/0/9/130969489/9155048.pdf
- https://cdn.shopify.com/s/files/1/0431/8180/1629/files/84512078302.pdf
- https://cdn.shopify.com/s/files/1/0431/8127/7345/files/bilade.pdf
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/calculus_larson.pdf
- https://cdn.shopify.com/s/files/1/0433/0097/8853/files/19873400828.pdf
- https://cdn.shopify.com/s/files/1/0428/2531/8563/files/72232664768.pdf
- https://cdn.shopify.com/s/files/1/0428/3380/5471/files/94112956493.pdf
- https://cdn.shopify.com/s/files/1/0430/7327/4018/files/saxesosajisozivuvip.pdf
- https://cdn.shopify.com/s/files/1/0432/9914/3838/files/34234181970.pdf
- https://cdn.shopify.com/s/files/1/0432/3278/8648/files/joraboxibisat.pdf
- https://cdn.shopify.com/s/files/1/0431/1459/4466/files/moxikanefinogojonixur.pdf
- https://cdn.shopify.com/s/files/1/0430/5800/4117/files/torijuxuzigotelixebuzafa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48466687054.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000808b.binbe5a3de181b11a32dd713f381e51a10076a21020d95f67da2168289d8673068b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x808B | 5616 bytes |
font_01_sfnt_off00009377.bin2f5232491e1de74a7b5ad4d6bf4e297b56de195485e128adec146a3ebea22826 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9377 | 10112 bytes |
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