MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file is identified as malicious by multiple heuristics and a machine learning classifier. It contains numerous external links, many of which point to SEO-optimized redirector domains like 'pelibifir.ru' and 'kinoxca.xyz', suggesting a phishing or malware distribution scheme. The 'SE_CLICKFIX' heuristic indicates the document likely contains instructions to trick the user into executing commands, a common social engineering tactic to bypass security measures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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External URI info PDF_URIPDF contains an external URL action
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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://pelibifir.ru/strik?utm_term=can+you+screen+mirror+on+roku+with+iphone PDF link annotation
- http://kinoxca.xyz/jetojufifede573ir.pdfIn PDF document text
- https://kefejuze.weebly.com/uploads/1/3/1/6/131606268/kipugelubog-luviboroxita-zumizejud.pdfIn PDF document text
- https://cdn.sqhk.co/parikozug/ji3jdhe/86997555287.pdfIn PDF document text
- https://seritixatot.weebly.com/uploads/1/3/1/0/131070849/83f9719dbb3.pdfIn PDF document text
- http://arendagg.xyz/ninja_professional_blender_1000_watts_power_button_blinkingpcawf.pdfIn PDF document text
- https://fezulenigi.weebly.com/uploads/1/3/4/4/134485980/9012549.pdfIn PDF document text
- https://sajolunuweto.weebly.com/uploads/1/3/1/4/131407571/poraranesi_xukotutelaz_sobilux_besilagukizeb.pdfIn PDF document text
- https://cdn.sqhk.co/lusimalifa/jhhIhid/10439148462.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://da9d63b4-fbfd-4f6f-88e7-06ac0d76355b.filesusr.com/ugd/ca300b_2afa06b826514eb9903ea0da073bcb5b.pdf?index=trueIn PDF document text
- https://a91873a8-1f5b-4151-915d-af39eb211f25.filesusr.com/ugd/3f80ec_f49822b5593c4f1d8d028fa982807257.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jitimesolagun/pasosozexofetolutanif.pdfIn PDF document text
- https://s3.amazonaws.com/xubifupi/jejelugegu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6bf35827-d80b-4762-9a0c-d8336a233c4f/zorunusuturigufibux.pdfIn PDF document text
- https://s3.amazonaws.com/jolituzoji/jinepona.pdfIn PDF document text
- https://4fd47d7d-96cb-4cdc-943f-55997d715fc9.filesusr.com/ugd/ab3424_283a460a7eb940d0965d069bede91d70.pdf?index=trueIn PDF document text
- https://3c4962d9-41f7-4f14-8396-dad57cc8de20.filesusr.com/ugd/a2de88_d5d0b903b0f24b0ab445b4f0288ab3fd.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bomupi/92516791514.pdfIn PDF document text
- https://a62e46b8-d933-4087-892c-e5439cec6991.filesusr.com/ugd/e9cba9_be372ff5cb8b477fb1a393cd3a1c4ade.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a144314b-ec49-4f22-ab35-4c8c36223c18/solusedijuwumikudumipof.pdfIn PDF document text
- https://s3.amazonaws.com/filidabut/chrome_for_linux._deb.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF25 | 5304 bytes |
SHA-256: 21df5f78cb3da6336f446c72bbe54f7074574e682df1ce395e5fe24c9176f02f |
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font_01_sfnt_off0001011c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1011C | 11004 bytes |
SHA-256: 26ddb2ced61f0532d4c2f2687999dd5410133939d73a9f74c45cfd3a6b81319f |
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