MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of links, many of which point to compromised WordPress sites and disposable hosting, indicating a link farm designed to distribute malicious content. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. The presence of numerous external URIs and link farm characteristics strongly suggests an attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9891
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 https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/8j19msgh4k32ae27n5os0334f0/xogumabefep.pdf In PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1609dbdd5a7064---81814271291.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/7836f926121e412045a64a0c7a2b0e1b/tesuvovisi.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/814b21e9bddbb51f334112539e710d0d/duzomekezoladunidid.pdfIn PDF document text
- http://krzeptowski.pl/file/tenokaxelowepulejas.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2c73ead026---78787867637.pdfIn PDF document text
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c45352ab658---32689823417.pdfIn PDF document text
- http://northstarbaptisttyler.com/clients/a/a4/a4b4c2e389351fb2dee96c3f727c6a57/File/zefawatuxedorimodedotudi.pdfIn PDF document text
- http://kamkmori.cz/ckfinder/userfiles/files/mitegazogofo.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8cedd0f5c---79369326333.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16099af4bc98ab---73662054277.pdfIn PDF document text
- https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/anii5kdtjuui81n9389f47t7dd/dulexajizalenaj.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/8a0b80c6f079758d9a449fbc2752f573/xasujapigodelimep.pdfIn PDF document text
- https://nbtele.com/en/cache/fck_files/file/97265618572.pdfIn PDF document text
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/f18851fefbd0fbd74c091be5b2bac4fc/kamamozutigamivedifenare.pdfIn PDF document text
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac46dc69328---92200028330.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160973c544d523---jufow.pdfIn PDF document text
- https://rivaflo-south.in/userfiles/files/55923814013.pdfIn PDF document text
- http://nebovsem.ru/app/webroot/files/files/56448333858.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7563e5e998---wixulura.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bceef8147b1---63083664442.pdfIn PDF document text
- https://victorybear-info.com/userfiles/files/tabizakevikixu.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e71150e14---xikibu.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/2aaddc9028d27efb3da1ffc15b818a8f/jusizujedopiwipelejul.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/l4d6brs47pbf75kmdh4phcaca0/50258984411.pdfIn PDF document text
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/447121c451ece831525a1213f9adc2f2/zusemidojis.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/e8940e9463a7e112adcf187ac62fe054/59599573814.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/56jrm7mdb83ik3paefjpj7t9hp/27257501876.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=parallel+line+postulatePDF 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_off00019619.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19619 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001ae2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AE2B | 19064 bytes |
SHA-256: 942f285e1c0482afc880ec4cb8e2d1dcebbe6d07addd147dc1646ae561f636a8 |
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font_02_sfnt_off0001debd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1DEBD | 10348 bytes |
SHA-256: 5f5a5a26f60de803caf9fb108bb24c26206c2afc06f17a4d6de917ca10f004c9 |
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