MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical PDF_SEO_LINK_FARM rule indicating a mass external PDF link farm. The primary redirector URL, 'https://botokaw.ru/123?utm_term=ap+grama+sachivalayam+syllabus+pdf', is used to lure victims with a seemingly relevant document title. The file contains numerous embedded URLs, many pointing to S3 buckets, suggesting a broad distribution effort for potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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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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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://botokaw.ru/123?utm_term=ap+grama+sachivalayam+syllabus+pdf PDF link annotation
- https://s3.amazonaws.com/senodiw/certificado_medico_legal_de_lesiones.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417534/normal_6020059378ab2.pdfIn PDF document text
- https://s3.amazonaws.com/xuzakob/10417816900.pdfIn PDF document text
- https://s3.amazonaws.com/tedowafomaru/cymatic_audio_lp-_16_manual.pdfIn PDF document text
- https://s3.amazonaws.com/toliwudalamem/beholder_full_game_android.pdfIn PDF document text
- https://s3.amazonaws.com/kefiperizonofu/rejafupidodibubabajazapiv.pdfIn PDF document text
- https://s3.amazonaws.com/turip/89845294212.pdfIn PDF document text
- http://nesorus.mywebcommunity.org/cambridge_primary_mathematics_stage_5_learner_s_book.pdfIn PDF document text
- https://zuvitapud.weebly.com/uploads/1/3/1/4/131406427/jobuli-zegezalej-wutozakolapetan-lojalixutok.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421462/normal_5ffe15038e7e0.pdfIn PDF document text
- http://nabavawuzafurur.mygamesonline.org/navulix.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445880/normal_60117e4045e3d.pdfIn PDF document text
- https://famojiwogupoj.weebly.com/uploads/1/3/2/3/132303340/bc32faa84.pdfIn PDF document text
- https://s3.amazonaws.com/ravuxudibure/illaoi_combo_guide.pdfIn PDF document text
- https://s3.amazonaws.com/mudurixo/18769092498.pdfIn PDF document text
- https://s3.amazonaws.com/sixenogafopoj/jidexilupepis.pdfIn PDF document text
- https://s3.amazonaws.com/telasebisu/camelot_season_2_full.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://31f314b5-0768-4c24-bd49-4596ea953b46.filesusr.com/ugd/85a4b1_3c17db58f50d443a93c1b0a184167ba6.pdf?index=trueIn PDF document text
- http://kuxemozoxabonag.onlinewebshop.net/zexisukasuxe.pdfIn PDF document text
- https://a72b158e-cead-41d6-a0b3-8518216316a4.filesusr.com/ugd/35c6e2_605d651023bb41d9ab2225368f4ff1ef.pdf?index=trueIn PDF document text
- http://vuzuwukef.atwebpages.com/95058810108.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ee09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE09 | 5328 bytes |
SHA-256: 3fdc5584a676feb1cd24db120fa52545dae23628d055b57fbec048a21e7fa3ed |
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font_01_sfnt_off00010023.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10023 | 10360 bytes |
SHA-256: 64a5bad16442edff7d8889cf718c8ff8033c0ea9c54d85d655bde851d3e472a1 |
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font_02_sfnt_off00012382.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12382 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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