Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ea9a5362002c96…

MALICIOUS

PDF

79.0 KB Created: 2021-09-16 00:57:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: cac1b233f4ef83a04a183022b34542ee SHA-1: cafcbe111ffea94727d86b18694b6f7b8d46fbc4 SHA-256: d3ea9a5362002c96a30b010fcb62ffcb3b33351148f04d2a0ad8908e9cd3110e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

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://synerhu.ru/uplcv?utm_term=infinity+ops+apk+download PDF link annotation
    • http://cozycornerexpress.com/uploads/files/vorufewotom.pdfIn PDF document text
    • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16140fb3824537---tetezaratunopurekonaguv.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/99091769406.pdfIn PDF document text
    • https://jazykovytabor.topenglish.sk/app/webroot/gallery/files/zesiga.pdfIn PDF document text
    • http://nhadatv.com/webroot/img/files/24912993783.pdfIn PDF document text
    • https://talenthunt.biz/userfiles/file/mupijakepuva.pdfIn PDF document text
    • http://101-games.ru/images/uploads/files/tejova.pdfIn PDF document text
    • http://spellenindex.nl/images/uploads/36086419602.pdfIn PDF document text
    • http://heatexchangersolution.com/upload_fck/file/2021-9-14/20210914081129382820.pdfIn PDF document text
    • https://parkettworld.com/upload/files/jopivamatevexefoneze.pdfIn PDF document text
    • https://promaxsuspension.com/csmimage/file/madaledetozijagu.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/03533aa091271ee27b49347479c9954e/82369995036.pdfIn PDF document text
    • http://flightshop.jp/images/blog/file/67477712254.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133582ba2fbe---28480392479.pdfIn PDF document text
    • https://www.gullyracing.it/admin/ckfinder/userfiles/files/6339560199.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/b0e8653b6964456315f039ca73c9023c/newegawikar.pdfIn PDF document text
    • https://2b3la571ga-70p.com/contents/files/fonifujuwesawaburiveboma.pdfIn PDF document text
    • http://gz-chengeng.com/uploadfile/files/pigoxafofemepubok.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/j5uego1ameq35lt1db5qime3d4/3356809408.pdfIn PDF document text
    • http://agataklimowska.pl/userfiles/file/pekugaruwiridu.pdfIn PDF document text
    • http://kryotherapie.net/neu/userfiles/file/82639196482.pdfIn PDF document text
    • http://paneldeconso.com/userfiles/file/winopuwofajubabog.pdfIn PDF document text
    • https://mertlakustika.cz/images/pages/file/paxojewomuvexokavuriw.pdfIn PDF document text
    • http://tc-muehlacker.de/data/tcmuehlacker/userfiles/file/ditukit.pdfIn PDF document text
    • http://carrollcountylawyers.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/12329273175.pdfIn PDF document text
    • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/10fb08a51a64a3d0ac45e3aaecdc6e21/16715345569.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.

FilenameKindSourceSize
font_00_sfnt_off0000d05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD05F 17516 bytes
SHA-256: 95d44710cd3d4ce38d75fe714988052a9ca5f5e63679d75533d5bd8c98d11e77
font_01_sfnt_off0000fe17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE17 10504 bytes
SHA-256: 16c091131869ac8f38700df9a4c1fdf9f0827777790e3758bb42ba2d6d26dc33
font_02_sfnt_off0001162d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1162D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1