MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, including a mass link farm and SEO redirectors, designed to trick users into downloading other files. The presence of UTM parameters in one of the primary URLs suggests a targeted phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://leonvi.ru/123?utm_term=charles+law+lab+report+introduction PDF link annotation
- https://cdn.sqhk.co/sebixodof/eggzNgi/terminator_dark_fate_movie_link.pdfIn PDF document text
- http://letabumo.getenjoyment.net/pragmatic_approach_to_research.pdfIn PDF document text
- https://pelunukemuf.weebly.com/uploads/1/3/0/7/130776607/kuriberudelaj.pdfIn PDF document text
- https://cdn.sqhk.co/suwefememe/VGgighl/xedimaxupituvujodogut.pdfIn PDF document text
- https://soxoxalumowaju.weebly.com/uploads/1/3/4/7/134768556/fd9d54a5.pdfIn PDF document text
- https://cdn.sqhk.co/vefusujix/fyhbha1/95955928436.pdfIn PDF document text
- https://kegixofuwo.weebly.com/uploads/1/3/4/5/134577478/muviperuson.pdfIn PDF document text
- https://tubolapibakosi.weebly.com/uploads/1/3/4/8/134872187/tipaxefabevuvop_derozoz.pdfIn PDF document text
- https://rarejiwu.weebly.com/uploads/1/3/1/6/131606055/120d3cb1ad3d841.pdfIn PDF document text
- https://cdn.sqhk.co/rigizisojix/KjgiEje/43110179391.pdfIn PDF document text
- https://cdn.sqhk.co/gasalikuviz/gddz5if/63367538729.pdfIn PDF document text
- http://jovepodixowofow.mygamesonline.org/losur.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/gidibesuxi/25089784362.pdfIn PDF document text
- https://s3.amazonaws.com/sabegokek/what_is_the_equation_for_acceleration_due_to_gravity.pdfIn PDF document text
- https://s3.amazonaws.com/lijulijowivaze/all_justin_bieber_songs_free.pdfIn PDF document text
- https://s3.amazonaws.com/xajowu/ashes_cricket_2013_game_utorrent.pdfIn PDF document text
- https://s3.amazonaws.com/bogeguva/mejor_antivirus_tablet_android_gratis_2018.pdfIn PDF document text
- https://s3.amazonaws.com/bokofapig/99_acura_integra_maintenance_required_light.pdfIn PDF document text
- https://s3.amazonaws.com/wemazun/creation_tool_windows_10.pdfIn PDF document text
- http://taberadajip.atwebpages.com/washington_gas_credit_union_login.pdfIn PDF document text
- https://s3.amazonaws.com/putelekireza/how_to_check_google_maps_timeline.pdfIn PDF document text
- https://s3.amazonaws.com/davubewu/69583239700.pdfIn PDF document text
- https://s3.amazonaws.com/genukopapovixo/52890347996.pdfIn PDF document text
- https://s3.amazonaws.com/bededuxotulapil/wilegajifaj.pdfIn PDF document text
- https://s3.amazonaws.com/luropiw/11286650762.pdfIn PDF document text
- https://s3.amazonaws.com/fibesezati/meconium_delivery_guidelines.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_off0000ea0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA0C | 5296 bytes |
SHA-256: a29d4d1440ec9f060ad36922b7a869ab3c6a625df67595fab4fa98d997116c5a |
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font_01_sfnt_off0000fc0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC0B | 11248 bytes |
SHA-256: c2ad2d14ba25733c34e1d5f7749f8228732d72a51f1c9c3217625640ac663c5c |
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