MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm with numerous URLs hosted on compromised WordPress sites and disposable domains, suggesting an attempt to distribute malicious content or phish users. The presence of multiple external URIs and a link farm heuristic points towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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 http://druckmaschinenservice.com/uploads/fce/files/3519590977.pdf In PDF document text
- http://kfnmdg.com/upfolder/e/files/20210719194825.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16076d0ab593be---2601510737.pdfIn PDF document text
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/t8u956e64aa4sere88fe7gptvl/xofedabufimagutuwegowera.pdfIn PDF document text
- http://sorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/90014259880.pdfIn PDF document text
- https://sjalikave.hu/pictures/file/82921102918.pdfIn PDF document text
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a26c1c2b8ad---91030272214.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/cd89e5c5dffd46dc64087bf5d525e392/fojixogibenawakazu.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607832dd04c2e---73810264570.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160af7923a74cb---gepobuj.pdfIn PDF document text
- https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/4bc65f1b4c0cb46b3f58e186f0a35c4c/tofezodew.pdfIn PDF document text
- http://benetalent.com/upload/files/pibafapitakebujisuzadupo.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/51998103965.pdfIn PDF document text
- https://beautyyaurient.com/editor_upload/file/24281630672.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/0mhjkguvotp2126mhu5486bgm3/21170204414.pdfIn PDF document text
- http://hart-metale.pl/gimnazjum/userfiles/file/46357022183.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a3f6b737d---bufobelefizob.pdfIn PDF document text
- http://robalton.es/Albums/images/file///59927065905.pdfIn PDF document text
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160961acd26d37---61738715657.pdfIn PDF document text
- http://urparitet.ru/admin/ckfinder/userfiles/files/88159701328.pdfIn PDF document text
- https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/4e90d15e3bbdff1a424b1a309ba0a45f/zijevarudumisinimigi.pdfIn PDF document text
- http://acquadiqualita.it/ckfinder/userfiles/files/69842400874.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/5bdf97ceebf79d75f773a03ef116c81d/53738286478.pdfIn PDF document text
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/t2hrke55q2qc4l244dt445fke7/20020485257.pdfIn PDF document text
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/7f4923adb75f1aff8d75bcbbbc09742b/8758819692.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160776cbf2619d---sufixogafazevumogap.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=ps3+emulator+for+pc+windows+10+32+bitPDF 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_off0000f167.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF167 | 17432 bytes |
SHA-256: 92919b69382f9852c05bde32ab1c01f500ee6d4112fd0158a70a4534ed4fadc2 |
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font_01_sfnt_off00011f50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F50 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013767.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13767 | 11576 bytes |
SHA-256: c0a1cf7397575573915891617b69ef7c0ce5300f510b7adaf2a9e65b56cd54e2 |
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