Malicious PDF — malware analysis report

Static analysis result for SHA-256 1912d264bceaa2b9…

MALICIOUS

PDF

82.1 KB Created: 2021-10-16 22:01:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 571829b6ad5cd35a0bcf72f6fbb7b9d5 SHA-1: 2930d05b0c1fc600b72bed430ee738bcf3e6d740 SHA-256: 1912d264bceaa2b9d81324da60e455864a8317bd1b1f7bf3ea84e2a179f13292
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/eff343f2838bf00510badf7b6506aa3a/fimapivalovavenideba.pdf In PDF document text
    • https://slavyansk.biz/userfiles/file/36709595002.pdfIn PDF document text
    • http://soc-in.com/data/media/files/31756010911.pdfIn PDF document text
    • https://lekkermooi.nl/userfiles/file/wutepufose.pdfIn PDF document text
    • https://lenaoyunlar.net/calisma2/files/uploads/93532714245.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161468e29ae9c0---wevevadagizofexikotijod.pdfIn PDF document text
    • http://wecans.net/_UploadFile/Images/file/nafikibujofede.pdfIn PDF document text
    • http://akifkasaboglu.com/esatfisek/images_upload/files/73697994726.pdfIn PDF document text
    • https://alcc.c-zentrix.com/ALCC/mail_attachments/multitenant-ws-01/1/1631419093.pdfIn PDF document text
    • http://orvosvalaszto.hu/uploads/files/kowevenexulinu.pdfIn PDF document text
    • http://perfect-aerosol.eu/userfiles/file/74637840385.pdfIn PDF document text
    • http://dailygameresult.com/editor/UserFiles2/files/52721218509.pdfIn PDF document text
    • https://nasco-ye.com/uploads/file/26402836135.pdfIn PDF document text
    • http://cjpharmtech.com/upload/files/10108423932.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/vismi4eq3qd86a0qev9qs8vq1k/9576137466.pdfIn PDF document text
    • https://thefertilizergranulator.com/d/files/13962456714.pdfIn PDF document text
    • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/3184395575.pdfIn PDF document text
    • https://coastalstudio.com/images/main/file/sedalafakekimumizitav.pdfIn PDF document text
    • https://mdteam.se/ckfinder/userfiles/files/rudamuberusudukid.pdfIn PDF document text
    • https://llibreriaha.com/img/events/file/rolav.pdfIn PDF document text
    • http://0932018255.kad.tw/kads/ckfinder/userfiles/files/4806202801.pdfIn PDF document text
    • https://ratosatu.com/contents/files/9496238446.pdfIn PDF document text
    • https://grupa-energia.pl/attachments/file/kimevatowigo.pdfIn PDF document text
    • http://grandp.ru/userfiles/file/46163660367.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/5bhJmFgkeCE/uplcv?utm_term=doctrine+and+covenants+22PDF 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.

FilenameKindSourceSize
font_00_sfnt_off0000dc25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC25 10504 bytes
SHA-256: 7591d6966e61542c6c72917a3319504888f8a7a6a7a5d7b986b35ce3616117e6
font_01_sfnt_off0000f43a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF43A 17784 bytes
SHA-256: f52b21455e6bf25df67956c5ec3be3bfcf03f202cdfc4c210f54e3d038d93dac
font_02_sfnt_off000122bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1