Malicious PDF — malware analysis report

Static analysis result for SHA-256 1916512f9a1d2679…

MALICIOUS

PDF

86.5 KB Created: 2021-08-29 08:26:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: f086ec836b8aa5ed055d28581549dd15 SHA-1: d89e1eeb84d5a8189a04060db327e3fcc8fd2922 SHA-256: 1916512f9a1d26793747b267b09bd9c01acdcd228c3b95a13b8c04891f7c26e4
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160c3376215c9c---gujevalaxizosojewumu.pdf In PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ff7df49cfb4---74066144727.pdfIn PDF document text
    • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/neaqjs7sal9qg9upl9ur8mj2im/18989666125.pdfIn PDF document text
    • http://pattonbrayboy.com/clients/8/84/8444fd18e659e4cf0f5d78ff5dcadce3/File/48835018978.pdfIn PDF document text
    • http://monticellotownship.org/userfiles/file/poxufobutifemugeremim.pdfIn PDF document text
    • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/dec1b511535d1d77941c7953f819ada1/vuzomofunapej.pdfIn PDF document text
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084beaf9b425---veziju.pdfIn PDF document text
    • https://tradingphrases.com/userfiles/files/90130405561.pdfIn PDF document text
    • http://billagelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/runene.pdfIn PDF document text
    • https://juraganmonyet.com/contents//files/xuvoruxel.pdfIn PDF document text
    • https://tecnicamistasnc.it/file/29399885228.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/0648a7773ccafc4343f14ccf75e1e433/15477949751.pdfIn PDF document text
    • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/16092432c1db45---gadajokagimopiziwodadog.pdfIn PDF document text
    • https://digireg.cn/upload/zolasuwisigotagolitewu.pdfIn PDF document text
    • http://dekobonner.de/userfiles/file/75119752466.pdfIn PDF document text
    • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/3461d5588a0d05f894f8a30f04743b87/909087548.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160960f12221e1---fuwelejalizosevavosutasi.pdfIn PDF document text
    • http://www.lebedosapartotel.com/data/yukle/files/45013716359.pdfIn PDF document text
    • http://mengnuanua.com/app/webroot/files/files/kiginarutexabunobo.pdfIn PDF document text
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d03f7577a1---24466938015.pdfIn PDF document text
    • http://opakowania-loga.pl/zdjecia/fotki/file/77306118850.pdfIn PDF document text
    • https://telenovella-bg.com/files/53058320405.pdfIn PDF document text
    • http://refpecsbelvaros.hu/kepek/files/7955236982.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=from+dawn+to+dustPDF 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_off0000ed0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0D 18092 bytes
SHA-256: 1822c95c1993b6476a6f2412dd4f501f80bc160445de94079825bf5d9e16f22d
font_01_sfnt_off00011c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C70 10300 bytes
SHA-256: da9335bfa6835cfd2bfd5c59b9319a6cf670c09802fc5cd013eb91757e4818f7
font_02_sfnt_off000133af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133AF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1