MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It functions as a link farm, containing numerous URLs pointing to various domains, several of which are hosted on compromised WordPress sites. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement, common in phishing or scam campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://catamma.ru/uplcv?utm_term=good+quotes+from+chapter+16+of+to+kill+a+mockingbird PDF link annotation
- http://heninrealty.com/userfiles/files/35925830007.pdfIn PDF document text
- http://wienbildarchiv.com/upload_files/files/6712188993.pdfIn PDF document text
- http://tlumacz-bialystok.pl/pliki/file/80648988124.pdfIn PDF document text
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa301bd243---molekujavu.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16103df9f9f1fb---vajeletuvowiranavarasir.pdfIn PDF document text
- http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/xefisukudoger.pdfIn PDF document text
- http://dolphinegypt.net/userfiles/file/57653915313.pdfIn PDF document text
- https://dennismaloney.ca/upload/editor/file/wowurizokokosenasurorer.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/f3d61c366cf13f0b0d9ee619fd07dd3e/95519426087.pdfIn PDF document text
- http://flooroverstock.com/admin/userfiles/file/kubup.pdfIn PDF document text
- http://bisenzia.it/userfiles/files/94970559803.pdfIn PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/ttljf1rh1dhh2c0un0qm12i1k4/perokezipodawajot.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/64e390befb9184db60ad15505274abb5/janiloko.pdfIn PDF document text
- http://mesterek.net/tmp/zusekexe.pdfIn PDF document text
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/0515115af90a51f2e36ad530b4b0b03f/nixok.pdfIn PDF document text
- http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210604_0A8BF7D7DF678B27.pdfIn PDF document text
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/f92321e33eb90cf013b36dbca956d316/93980680057.pdfIn PDF document text
- https://ducthai.vn/userfiles/file/moniralu.pdfIn PDF document text
- http://hkxhjfc.ltd/uploads/files/20210728132920.pdfIn PDF document text
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/213cb57ded25ae5c6f37061b136199eb/pekebagupiburewaz.pdfIn PDF document text
- https://comobrew.com/newsite/images/user_uploads/file/tebekikonub.pdfIn PDF document text
- http://www.alexgis.com/siteuploads/editorimg/file/likepidatiwigolovelaxud.pdfIn PDF document text
- https://paklya.su/design/img/upload/file/rebadijafuv.pdfIn PDF document text
- https://ikima.fr/uploads/file/regotidazebobomogozusan.pdfIn PDF document text
- http://saydersan.com/firma/files/gekelu.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_off0000fe20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011637.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11637 | 11804 bytes |
SHA-256: a2de667242f3d2ceccfeeb26af697393a249e6d4d050d142fce37c269e9c0186 |
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font_02_sfnt_off00013196.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13196 | 17684 bytes |
SHA-256: 7b2b9480646ef988806a4a1ebb4ba4fa44ef236cf3d305d8ec6615e8218e4150 |
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