Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7470d228cc4a89…

MALICIOUS

PDF

87.2 KB Created: 2021-08-14 03:40:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 6b6a3fa2d54fcbf1a410c1d104f19196 SHA-1: 0d1c4cc78d7a406794cdf30b137aa36efdb45ebf SHA-256: cd7470d228cc4a892475c87d0dfbe2b86a035600634140e741c862b17ffcef7d
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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=friendship+bracelet+wheel+heart+pattern PDF link annotation
    • http://occahomesearch.com/userfiles/files/lunujorufunafimotujadefef.pdfIn PDF document text
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/50468f6516efd1f83d505436f3136a76/68257496061.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085b190e31ef---fusigisopafavarumoluda.pdfIn PDF document text
    • http://thessalonikiflights.com/files/files/mitelosudibufe.pdfIn PDF document text
    • https://alamansyria.com/userfiles/file/kuwujades.pdfIn PDF document text
    • http://cesishotel.lv/res/wysiwyg/file/49513611962.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c24bc4514e3---4865585179.pdfIn PDF document text
    • https://conexusinternational.com/ckfinder/userfiles/file/foropetomunejemaw.pdfIn PDF document text
    • https://cmflower-kkc.com/ckfinder/userfiles/files/powumesasup.pdfIn PDF document text
    • http://bomtvplus.com/data/board/file/20210624121252.pdfIn PDF document text
    • http://vizugy.hu/uploads/files/47908712699.pdfIn PDF document text
    • https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/00bit3br1nckqmedq08tkfjhlj/27036785513.pdfIn PDF document text
    • https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/cb83b7ce1733623ee854ee6f771de5c4/98850592966.pdfIn PDF document text
    • http://stavebnevyrobky.sk/www/upload/files/14480772201.pdfIn PDF document text
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/2cfaeb4b75672b47943260b8a91686d9/31425649792.pdfIn PDF document text
    • http://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gefukapilanem.pdfIn PDF document text
    • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/4172f2955d4f33a710d223968a0f42f3/sifadawuzajozokazolug.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/6odpume0ocj7g6elkbtt0h1aaa/4753834249.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/kr41ebbf4l6e89l43qhcvvfgjp/83884734169.pdfIn PDF document text
    • https://talaa-obour.com/webmisr/uploadwebmisr/file/42249572937.pdfIn PDF document text
    • http://imbirimbir.ru/files/70020091410.pdfIn PDF document text
    • http://bluekeydigital.com/images/pic/file/76753358668.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160806ea718c5b---64088563780.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_off0000f2bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010ad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD4 10692 bytes
SHA-256: 9bacc03e9efd325079956f7db5d7baae3c4a7068d9c62fe3db7cae1e4f617c93
font_02_sfnt_off0001230d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1230D 16976 bytes
SHA-256: ff3c920ac3720abb7e0a82e8b50fadca939f378f71d68cfd4e551f5ee6e949a4