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 a URL that promises a software crack. This link is embedded within the document body, suggesting a social engineering lure. The presence of a large number of external PDF links, many hosted on static.usrfiles.com, indicates a link farm designed to improve SEO for malicious content. The ML classifier also strongly flagged this PDF as malicious.
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.club/wix?keyword=passport+photo+maker+5.+15+crack+free In PDF document text
- http://files.itmspeakers.com/uploads/1/3/0/7/130776601/buxagowapoz-xowagab-navufogudovo-vuzenupu.pdfIn PDF document text
- http://files.drawinguntohim.com/uploads/1/3/1/4/131406749/588408.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://static.usrfiles.com/ugd/69695d_0c75bf254e2c46c9b4c647d12c98f9fe.pdfIn PDF document text
- https://static.usrfiles.com/ugd/9058e5_0a3ce4d0e91d4033a526f69ea98e41ba.pdfIn PDF document text
- https://static.usrfiles.com/ugd/a32c20_29c867a761694e2c9469a59e3e06e94f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/fbccce_2c54145eaadf49ba919e07699591ae0e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_c2931eb0f4b647fc8cead60f5e2cafda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/7099/6889/files/cannon_fodder_game_for_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/3462/8516/files/kylee_strutt_gif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0019/1387/files/pikikofomekun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9507/2672/files/58980631404.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_da2133d936164a218f79a8d2f4a3d882.pdfIn PDF document text
- https://static.usrfiles.com/ugd/6908d7_f9d9e7941cca4f31b5f11bb9785a54ed.pdfIn PDF document text
- https://static.usrfiles.com/ugd/6924eb_d0198d7f5ed241aa993c2bae941e32fc.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_1a36094868c549edb7d52b3539906ddd.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a751.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA751 | 22068 bytes |
SHA-256: 62903ea7c12ae494cb345510076a0be3b11d4651c3da83c89d7ef187c48f771a |
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font_01_sfnt_off0000ec77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC77 | 5496 bytes |
SHA-256: e86123bad6ddfa4fea714daedb5c0ecd742caa47bf3fa62aa0b337b3a6d14d3c |
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font_02_sfnt_off0000ff13.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF13 | 2976 bytes |
SHA-256: e550df74d5d47ad2fe3a95b9b006c516ef0c39f51bebd5446f6d90d89fc3e049 |
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font_03_sfnt_off00010b32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B32 | 13968 bytes |
SHA-256: c3e0e736e335f1a22f1acd63bd10faeb781623fb059c9e1201012bbb145be44a |
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