MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, with a critical heuristic identifying a link farm and a high-confidence heuristic flagging an image lure linking to an SEO redirector. The primary malicious URL identified is 'https://resalured.ru/strik?utm_term=ap+psychology+unit+1+review+quizlet', which is likely used for phishing or to serve a second-stage payload. ClamAV also detected this file as 'Pdf.Phishing.Trojan'.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://resalured.ru/strik?utm_term=ap+psychology+unit+1+review+quizlet PDF link annotation
- https://static.s123-cdn-static.com/uploads/4413846/normal_5fcb10b090181.pdfIn PDF document text
- https://s3.amazonaws.com/xeropizuwe/how_to_pass_ap_physics_1.pdfIn PDF document text
- https://s3.amazonaws.com/wetowuzuxit/ryobi_2200_generator_spark_plug_gap.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413838/normal_5ff1c08655a1c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418184/normal_6056707a3be89.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368469/normal_60065c3edf761.pdfIn PDF document text
- https://ligegumipiwefu.weebly.com/uploads/1/3/3/9/133999845/2743675.pdfIn PDF document text
- https://fejilexa.weebly.com/uploads/1/3/1/1/131163980/463047.pdfIn PDF document text
- https://s3.amazonaws.com/zagapaxa/cascada_de_coagulacion.pdfIn PDF document text
- https://s3.amazonaws.com/kukupunopedon/aptamil_gold_2_nutritional_information.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444378/normal_6054e8483539e.pdfIn PDF document text
- https://pujuwofox.weebly.com/uploads/1/3/4/8/134882524/monejuduwuv-nonilo-ruwenoj-dibixugerijipa.pdfIn PDF document text
- http://zoxejusozowevo.iblogger.org/44618789158.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366374/normal_600820a4769ba.pdfIn PDF document text
- https://s3.amazonaws.com/vatosolikijike/8478415799.pdfIn PDF document text
- https://s3.amazonaws.com/nademopor/death_note_light_up_the_new_world_ryuk.pdfIn PDF document text
- https://s3.amazonaws.com/levumoduf/94353159602.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383308/normal_6017d3b4813ef.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393044/normal_5fdfbc65f0cfd.pdfIn PDF document text
- http://xususebixaxix.iblogger.org/rujilorudirojawa.pdfIn PDF document text
- https://s3.amazonaws.com/bezegoluzose/apex_legends_quiz_answers_quiz_delivery.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://getorimojaz.rf.gd/labajotiburizemodiga.pdfIn PDF document text
- http://nizalag.rf.gd/bickley_script_let_font.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 6
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f8fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8FB | 6836 bytes |
SHA-256: 4ec285595b8a9d06670b30c7345773cec9ca7c088d77711f01aed2dc7c400a10 |
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font_01_sfnt_off00010a45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A45 | 5456 bytes |
SHA-256: 70b3bac5e73e4765ed0c0ea0d0f8f1a32226735c5722f278cad8b5210eed63ae |
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font_02_sfnt_off00011cfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CFB | 9508 bytes |
SHA-256: 149b888408aa254ab0575c183ffd7409afac72dba5c5ee654a61ad341e146689 |
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font_03_sfnt_off00013d9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D9D | 11124 bytes |
SHA-256: dc53b71aaf0a57a327a5107933758ec79df0768e744c973acf503ee70895aee5 |
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font_04_sfnt_off000163a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x163A9 | 16128 bytes |
SHA-256: 3bd93e688f2993b27744791940e9fab5af40a74c6a71fadec7adfc8b757e4bc2 |
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font_05_sfnt_off00017880.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17880 | 1740 bytes |
SHA-256: 5f7498f8e433e4c6c47e8ca53e78f46c92ad2660f1d70c8a76bf58ffa4fc47b7 |
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