MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of multiple external URIs and link farms strongly supports a phishing or redirection attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://sarlampa.ru/upload_picture/rigokam.pdf In PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/3f425c193839a7fa7b167869c954c7d4/33777273714.pdfIn PDF document text
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/3v3soggc15hfnlkcj8aaasrha0/veramazitepopanediwovate.pdfIn PDF document text
- http://ascensionchina.com/userfiles/file/zamozuxisigajoxifop.pdfIn PDF document text
- http://przedszkolenisko.pl/userfiles/file/30992648768.pdfIn PDF document text
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/qr49s3s7627popb9oi2lf63be5/76722247480.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/asd03oa1bi87qmdmfvo722du9f/bikagonew.pdfIn PDF document text
- https://muguet.fr/sites/default/files/file/zovumomowilozibesuw.pdfIn PDF document text
- https://buka.ru/sadm_files/pefotekugizelusoxi.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/7744cc60f94d21cbdaf78ec3ca42277d/tikifugixevajubopo.pdfIn PDF document text
- http://skomi.ru/img/files/file/nexebabemomokupi.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db991cc3fe3---vazuwutejufepuset.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/ac007c969aa9326989c725d42d1accf0/19818668326.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c65fec711fa---51401755560.pdfIn PDF document text
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/hkqk906ioi6kr70hpcml29deo5/buvixetekogufef.pdfIn PDF document text
- http://myexamadvisor.com/fck_uploads/files/83644755488.pdfIn PDF document text
- http://beastyenergy.com/userfiles/file/manapak.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160879e2bf2738---watipasutiwelekeliw.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/4e5q9lp9aut7pv7fi0bime52o5/dupirefugone.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf9e40395dc---40007965201.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/e24a6e1913734865ec4195cb408201dd/sewavixiku.pdfIn PDF document text
- https://www.stjohnhomelessshelter.org/wp-content/plugins/super-forms/uploads/php/files/65973e1dcdfbd4960b65bbad55f64957/40379194912.pdfIn PDF document text
- https://ka-base.no/images_content/file/58803663673.pdfIn PDF document text
- https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/2f0726d903d5d3c9219116b7bbc8fa7a/dasives.pdfIn PDF document text
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607643dbbd203---jafakale.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=causal+relationships+definitionPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010d82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D82 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012599.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12599 | 10724 bytes |
SHA-256: ede6a8bf5db78eadda07dc369fd98770d831b0628d2ae198fce1f5c11a61f1f8 |
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font_02_sfnt_off00013e1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E1B | 17560 bytes |
SHA-256: cac859187f0fb876889281a34e7a9026dbf4d3104060913a6924585d094e5e72 |
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