MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to various websites, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a non-clustered link farm on disposable hosting, and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' suggests links to compromised WordPress upload storage. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://crewmak.ru/uplcv?utm_term=selfishnet+apk+no+root PDF link annotation
- https://ariaparvaz.com/basefile/ariaparvazcom/files/15355552848.pdfIn PDF document text
- http://ac-kenigsberg.ru/files/file/20531133991.pdfIn PDF document text
- http://artkulinaria.pl/sites/default/files/file/selevawusosafiwiwurusopa.pdfIn PDF document text
- http://www.css-jp.com/upfile/files/2021/08/31/riworiratigubawilorudub.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161303762c0136---robakojipu.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f0aca567cb---baxorefewabagodefaw.pdfIn PDF document text
- https://paidionresearch.com/userfiles/files/77546831537.pdfIn PDF document text
- http://violetstudio.in/userfiles/file/veruvosujazevor.pdfIn PDF document text
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fbf671716c---vasuliruzudimojajolufet.pdfIn PDF document text
- http://talentfuturesservices.com/sharpinstitute/images/files/72697584729.pdfIn PDF document text
- http://seednseed.com/admin/fckfiles/file/17006239507.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb4bcd3ed7---85868359027.pdfIn PDF document text
- http://group-anons.ru/userfiles/files/6373978335.pdfIn PDF document text
- http://ajisushionline.com/uploads/files/sidubiripexapur.pdfIn PDF document text
- http://skrabl.pl/www/rpbd/fck/file/joxeteni.pdfIn PDF document text
- http://www.rajpuc.pl/pics/file/lokonefisezekagojapa.pdfIn PDF document text
- https://kvzriu.org/images/file/rugozanawumajimowofurex.pdfIn PDF document text
- http://ducthoaudio.com/upload/files/39652016765.pdfIn PDF document text
- https://ecoolteh.eu/galeria/file/57592517752.pdfIn PDF document text
- http://archpiudue.com/userfiles/files/wonifatogajidujab.pdfIn PDF document text
- http://beergolfers.com/blog/images/file/mabonavudonuvifenatan.pdfIn PDF document text
- https://petribax.nl/userfiles/file/zomixixupedagazubimog.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://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_off0000b935.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB935 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d14c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD14C | 10624 bytes |
SHA-256: be4d2662df0ae23a85886b6e91cc4897e6355029f410fe98706f25e5f195b332 |
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font_02_sfnt_off0000e97e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE97E | 18036 bytes |
SHA-256: ec2f6979b542a0ad9a4daccbc9f4b03d207e7896bd357e0809e3a8a348056953 |
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