MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains a URL that matches the redirector link found in the heuristics, suggesting a lure to external content. The primary malicious activity appears to be the distribution of links pointing to potentially harmful websites.
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.com/pify?keyword=aalayal+thara+venam+lyrics+in+malayalam In PDF document text
- http://files.littleoasis.co.nz/uploads/1/3/1/3/131398547/b557d59ad24.pdfIn PDF document text
- http://zudefik.satxinspector.com/uploads/1/3/0/8/130814070/1419345.pdfIn PDF document text
- http://files.innerdolphinawakening.com/uploads/1/3/1/6/131606035/kumuvefajolen.pdfIn PDF document text
- http://pejix.jornalizem.com/uploads/1/3/0/8/130814328/zegatevajidakir.pdfIn PDF document text
- http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
- http://smc.org.inhttp://smc.org.inIn 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/1/0434/8549/5453/files/sumoxuxipexuwezadafalus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5179/5107/files/beruputezetuweredujabumar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/4444/3036/files/energia_eolica_en_el_peru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/5686/1077/files/facts_about_poseidon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0455/7858/4229/files/invitation_templates_for_sport_event.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4634/6658/files/bufosikupabakalirunapef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/5600/9111/files/miseruludure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6945/7063/files/tevadosupiju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7871/2472/files/37844778936.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62654677968.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2743/9526/files/xopomifekupalibalopopo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4552/8487/files/how_to_become_a_fluent_english_speaker.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://gitlab.com/smc/meera/blob/master/COPYINGIn 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 |
|---|---|---|---|
stream_004_off000067a1.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x67A1 | 9172 bytes |
SHA-256: b633aff07cd2d06a854df05d22dc461aa408653ee506457154b45377f91ab4e5 |
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font_00_sfnt_off0000562c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x562C | 5188 bytes |
SHA-256: 5e79fcaa2cebff150764f09e211cbe7a37604ff87b078a91e868a532e4414f95 |
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font_02_sfnt_off000086c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86C9 | 9868 bytes |
SHA-256: 53152857fb6ce6fc91d49510d9efbf7a81821ab4d1a4693ceaa8baa61789c195 |
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