MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of these links, 'https://ttraff.cc/wix?keyword=dark+mode+zalo+android', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting a social engineering attempt to drive traffic to malicious infrastructure.
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/wix?keyword=dark+mode+zalo+android In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_6d8407c9959e4ee9ae53b1189bb69f36.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b65acf_d6f4ac254b1d48ab880b392fae708e16.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_d422ec1068354474a274f0a8a3d3554d.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2462/0447/files/analisis_foda_personal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0817/8850/files/10637733111.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2402/2680/files/dejuwam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6916/9054/files/oscillator_mcq.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6225/3978/files/pevolafasanasezefapatem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1320/8221/files/fugusitikevewuwisaduw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4122/4861/files/sway_pussycat_doll.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9733/3664/files/95052487527.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0457/7689/6156/files/22831268620.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_d45b111e88584da98dea72fcc6a5f0b3.pdfIn PDF document text
- https://static.usrfiles.com/ugd/8c0e65_955449d3a4bf4681b06351bd12e60db6.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_3bc711463b5543f9bfda39dff8fea57d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/1decf9_adc8c77e84bd4c13b88b10759eb81df4.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_c064f48203fc4112bd9e96fab972b9f6.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_off00004b9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B9B | 4904 bytes |
SHA-256: c036cf55159f23aef9be499ab72c2b6f15aeaffd151dd77bbfd27a600681122b |
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font_01_sfnt_off00005c37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C37 | 1648 bytes |
SHA-256: db10b07aa1ba911afaf060b12e2cde8c70dbbf9941f30369d108722010ce9547 |
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font_02_sfnt_off00006481.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6481 | 11104 bytes |
SHA-256: 3a54ab533f3c0b9edfd372f36358b89015a0ce6286601562fd016ff2be0323a8 |
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font_03_sfnt_off00008851.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8851 | 16320 bytes |
SHA-256: bf5167c075d774c9e2ea62677ca3e8ada31171b92f4b1a4ec278e3e852de99fb |
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