MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged by multiple critical heuristics for containing a malicious redirector link and a large number of external links, suggesting a link farm. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the URL https://ttraff.cc/wix?keyword=friends+album+song+in+tamil, which is a known malicious redirector. The document body contains this URL and other benign-looking URLs, but the heuristic firings are the strongest indicators of malicious intent.
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=friends+album+song+in+tamil In 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/b8c837_9317eb29db70495d88f1b505263542c1.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_b30317aaa5564d66978070745cb83036.pdfIn PDF document text
- https://static.usrfiles.com/ugd/73c254_84367f0c30f1470184127e53db573dac.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3234/4736/files/what_happens_at_an_engagement_party.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4877/1477/files/zogijidojubadilokobo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0332/2261/files/bolujirojafofifazakal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdfIn PDF document text
- https://static.usrfiles.com/ugd/7e0eb0_b1308e8efc5f48c0af58e9de594c1f17.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_ce41e1d292b3472a95063fe4dec07992.pdfIn PDF document text
- https://static.usrfiles.com/ugd/16a96a_a56b21037dc74337a62e35df950f9c4d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/0047a4_62542af9137b4e82b2cb3a992a2cc48d.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_de4b68173cf7430ba8f07f3740fed396.pdfIn PDF document text
- https://static.usrfiles.com/ugd/5fd5c1_2030007dcb814d9bb56d3b2ec20d8a19.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4bdc6d_15575acbfb31477f9484f5a40594c442.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000067a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67A5 | 5240 bytes |
SHA-256: 9866bc6740bd11175eff7c93ea72c8fd44c78d989d0d7c67c72ab7834549ebce |
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font_01_sfnt_off0000795a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x795A | 16496 bytes |
SHA-256: fdd606f992db2313bbfedd825483fc33da1f7456185351f5f2d630c556f9117b |
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font_02_sfnt_off00009f57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F57 | 2044 bytes |
SHA-256: 28336a0cb3f8e641e75945af3d35324194abd932e21d2bc38800f63db353b10a |
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font_03_sfnt_off0000a8c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA8C2 | 12864 bytes |
SHA-256: 92e83d81cd517216f3e96cf6243f4a8e422becbbdfc4999200bd59ec50f7c3c2 |
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font_04_sfnt_off0000d16a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD16A | 16548 bytes |
SHA-256: bfd0e6c6940e8a73eb197773a0373651b93fcb42ccb32e89cd1a7c5c386ef8d5 |
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