MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS uploads, with many distinct hosts. The embedded URLs suggest a tactic to manipulate search engine rankings or redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160c2df6888f4b---50832525278.pdf In PDF document text
- http://unionasset.net/file_upload/spaw_upload/file/20210820192235.pdfIn PDF document text
- http://terremeraude.com/userfiles/file/vigituzasebenumuveto.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f7360f85667---kaguzuriwutiritadixes.pdfIn PDF document text
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/d35fd3095d752a7d0005b9ea527c8881/lufinobizal.pdfIn PDF document text
- https://podereilmontaleo.it/writable/public/userfiles/file/50850307816.pdfIn PDF document text
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/dd2175a47afeb828317823f59341fe26/91105706736.pdfIn PDF document text
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/qrupl6b9mgq4n37br12caqddvu/togaz.pdfIn PDF document text
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/9e17418afbda8c4855703d98c58d50c4/tivek.pdfIn PDF document text
- https://rimsball.com/ckfinder/userfiles/files/21908560430.pdfIn PDF document text
- https://ildiko-szepsegszalon.hu/userfiles/file/kizidijoxixuwarem.pdfIn PDF document text
- http://lukoilmarine.com/ckfinder/userfiles/files/7614253969.pdfIn PDF document text
- https://mm-podium.ro/userfiles/file/bawoseturu.pdfIn PDF document text
- http://tbvshungviet.com/upload/files/80848216152.pdfIn PDF document text
- https://giriconsultancy.com/content_files/files/zaziroxuvowuxewod.pdfIn PDF document text
- https://infotechsystemsonline.com/ital/www/img/file/95917681288.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a40c49f261c---dobusetulisezonogugapow.pdfIn PDF document text
- https://infrastone.com/userfiles/files/zedokinudorogeruve.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160777f5ad71c2---sumoxuni.pdfIn PDF document text
- http://airconbank.com/upload/fckeditor/file/38369544283.pdfIn PDF document text
- http://silverk.ru/img/lib/file/55123270337.pdfIn PDF document text
- http://longvu.vn/Images_upload/files/62542545678.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=write+off+car+purchase+for+businessPDF 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_off0000bb31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB31 | 10764 bytes |
SHA-256: d899a44093c22a70fc667369f2c072b6dba4b1d88e030b2008caed28590a5ffe |
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font_01_sfnt_off0000d3b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3B3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ebc5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBC5 | 14288 bytes |
SHA-256: 0edd4b1a792e7b8aeb84f668197571d24878caaf1cbb9a9c808fbc936537a4e8 |
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