MALICIOUS
152
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 Shopify domains hosting other PDFs, suggesting a link farm. One prominent URL, 'https://ttraff.ru/pify?keyword=princeton+review+biology+coloring+book+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to the search query, indicating a lure to trick users into clicking the malicious link. No scripts were extracted, and the primary malicious activity is the redirection via embedded links.
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.ru/pify?keyword=princeton+review+biology+coloring+book+pdf
- http://files.skyaudio.net/uploads/1/3/0/9/130969169/de246a49364.pdf
- http://files.jeniferwall.com/uploads/1/3/1/3/131384025/3603655.pdf
- http://files.kevinseanoconnell.com/uploads/1/3/1/3/131384173/gezunin.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kesutuzijakakewinepubad.pdf
- https://cdn.shopify.com/s/files/1/0427/4513/5260/files/bosofonilunozum.pdf
- https://cdn.shopify.com/s/files/1/0430/4361/8965/files/can_you_trust_a_vpn.pdf
- https://cdn.shopify.com/s/files/1/0439/8468/3166/files/etiology_definition.pdf
- https://cdn.shopify.com/s/files/1/0433/3194/4602/files/pexowupifi.pdf
- https://cdn.shopify.com/s/files/1/0428/2338/5247/files/nogasixoferofiw.pdf
- https://cdn.shopify.com/s/files/1/0440/8446/1720/files/kolamox.pdf
- https://cdn.shopify.com/s/files/1/0437/9515/3058/files/13058859565.pdf
- https://cdn.shopify.com/s/files/1/0433/7369/1045/files/preterito_perfecto_de_subjuntivo_ejercicios_pdf.pdf
- https://cdn.shopify.com/s/files/1/0429/9220/5978/files/rekoboba.pdf
- https://cdn.shopify.com/s/files/1/0433/3119/0952/files/hd_avi_movies_2017.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_off000053ae.bin5949377e1367741a69d5420f21f4ec772d98663758708fccf46c053b5fd6c2aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53AE | 5396 bytes |
font_01_sfnt_off00006635.bin901140fec3a44fcc2da07892a8a9a39656378aa3d16d20e8530a9be85b07e9a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6635 | 9516 bytes |
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