MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many of which point to a redirector service known to host malicious content. The document body, though partially corrupted, includes a URL that appears to be a lure for downloading study notes, which is a common tactic for phishing or malware distribution. The presence of a malicious redirector and a link farm suggests an 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.ru/pify?keyword=plus+two+business+studies+notes+in+malayalam+pdf In PDF document text
- http://files.englishlearningexpert.com/uploads/1/3/0/7/130739214/jizogidijebo-pigeg.pdfIn PDF document text
- http://files.accesseuropetour.com/uploads/1/3/2/7/132740181/vuzopi.pdfIn PDF document text
- http://files.win19.org/uploads/1/3/1/4/131453143/5455180.pdfIn PDF document text
- http://files.5elementscoaching.org/uploads/1/3/1/6/131606758/xixelogurejakin_pejunupor.pdfIn PDF document text
- http://bimiviku.wchistorymuseum.com/uploads/1/3/2/6/132681556/8883765.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6181/4172/files/jafavamakoravugeginutis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0199/3622/files/lerorepuluvoxejote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6207/4261/files/52274205734.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0571/4338/files/meturi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1701/1353/files/78330269924.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8054/8503/files/tegosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8339/1395/files/lenguaje_musical_ritmico_ediciones_si_bemol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8615/1833/files/kizasunamujepipaxif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2077/1750/files/what_s_the_best_status_for_github.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9372/8159/files/tudigovezitexeti.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006d01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D01 | 6440 bytes |
SHA-256: a606a6dede3b99472d2ac97761204782646b5f75106b48d1abccbe9a99ca9a4c |
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font_01_sfnt_off00007cf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CF5 | 5428 bytes |
SHA-256: 2b4e25dbe84de44f4b4a7a740f372433d5ebe91e3c0dc764f832b9e6741260ed |
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font_02_sfnt_off00008f6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F6A | 9960 bytes |
SHA-256: 3cf0145ed4eccc3181929895f07f89342a80713ba4b6467273db66f4a0a43240 |
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