MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, embedding numerous URLs that lead to potentially compromised websites or phishing lures. The presence of multiple links on disposable hosting and compromised CMS uploads suggests a tactic to distribute malicious content or redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://synerhu.ru/uplcv?utm_term=present+perfect+continuous+vs+present+perfect+simple+exercises+pdf PDF link annotation
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/295bc9c2461b4de96a7001f2d5a49235/99978648696.pdfIn PDF document text
- http://biogenetec.tw/image/files/20210817_072942.pdfIn PDF document text
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b1cdb22352e---34085640976.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/3e189232cdb7a65d53a6933649b4cd6f/59618335434.pdfIn PDF document text
- http://chatsworth72.com/clients/5/53/532ec3c8dc0e95779814939736d4df6d/File/ratutegetasuruwox.pdfIn PDF document text
- https://balajitutorial.com/admin/userfiles/file/tajotaxureduferumunujod.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8e3bbb00e---lamarupevizebetutob.pdfIn PDF document text
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/ps3khh2e4p8fer8e3nueu3toan/direbidamujeni.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/afb0343c61b4807ec381f758bef6bd29/89610768844.pdfIn PDF document text
- https://manajrgvaaradhi.com/cms-uploads/files/tijejuda.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/da899603f4ff81354ccfd9df31d235a1/piresakedajenapelotijazi.pdfIn PDF document text
- http://ilkyoukais.com/Images/Media/files/losutewiw.pdfIn PDF document text
- http://nsdadventist.org/FCKData/file/wiguxiduvepif.pdfIn PDF document text
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/e09f2ec23c2a35c4db4060d1a2bd49cc/21760901847.pdfIn PDF document text
- https://finomisgurukul.com/public_html/userfiles/file/tutegenaxebudi.pdfIn PDF document text
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608ced516811e---19686327178.pdfIn PDF document text
- https://selispin.com/calisma2/files/uploads/47467241940.pdfIn PDF document text
- http://dxczx.com/ckfinder/userfiles/files/20210704_165220.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16087cc125d0fe---53296819426.pdfIn PDF document text
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/9dvh4fa3am6ilscpl4vlfv6p05/91698394537.pdfIn PDF document text
- http://paillasse.hu/userfiles/file/20641796109.pdfIn PDF document text
- http://e-baze.lv/images/site/file/sirisuvapokavezazuro.pdfIn PDF document text
- http://taikenplan.jp/ckfinder/userfiles/files/10275576124.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e5509e169d7---wejamuwog.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_off0000db57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB57 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f36e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF36E | 10888 bytes |
SHA-256: f7e2be8ceacde93e7fe1d70ddbb3d5af36053f7f468828cdaefdb4fb69c989c8 |
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font_02_sfnt_off00010ca1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CA1 | 17588 bytes |
SHA-256: 71f13dc91796a36346a06052bf3f1f8d47da6b48b7f54d9b807d083b1a984c0e |
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