Malicious PDF — malware analysis report

Static analysis result for SHA-256 717a1c196693a352…

MALICIOUS

PDF

87.0 KB Created: 2021-06-28 22:03:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 1cfcf1049aef5d5f347db5400461594b SHA-1: 67841e6d2953c0be471043791519a9a060fb2811 SHA-256: 717a1c196693a3524e4a02c3ab7244b51cb9950f5b40d127a04e5dac4a70c32d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that likely lead to phishing sites or further malware downloads. The presence of multiple compromised CMS upload links suggests a tactic to host malicious content on seemingly legitimate but compromised infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://wastran.ru/uplcv?utm_term=the+fred+factor+free+download PDF link annotation
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd3833a4b2---gimupisajusubavizexif.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/lvt56j7393sq5akeboa0t9t1r6/lezomojab.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/dmep5cnpdj7e741ckse8863tm5/22359426969.pdfIn PDF document text
    • http://0930actress.com/files/files/wakupod.pdfIn PDF document text
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/0534c89f16a38701747fca896ca50e41/79079722721.pdfIn PDF document text
    • http://debden.org/userfiles/file/lolozodejijuwewuzibufar.pdfIn PDF document text
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/f26f981a057073153d0e51f803226dc8/wiwabafodepafowaxajojida.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609472de5b305---dadofefesiges.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/507abc0a9e8399da00a6691f7766239a/pubupazarepegesewub.pdfIn PDF document text
    • https://5a.ro/ckfinder/userfiles/files/30640676806.pdfIn PDF document text
    • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/6fc41947a5b58c67256459c80e91d36b/dasebilupuluberow.pdfIn PDF document text
    • http://bularz-auto.pl/images/userfiles/file/suwajimegujolabowifa.pdfIn PDF document text
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/l6relbnemvfep6125ncc9ova9g/seridudijewatutojanupa.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/p2l18n83qv938itik5g3rq3rv2/xojapoti.pdfIn PDF document text
    • http://tailormade-sales-marketing.com/userfiles/file/11047870503.pdfIn PDF document text
    • https://autoprofi.ua/userfiles/file/81874420824.pdfIn PDF document text
    • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/9cd2ab5edc0c81c877eabda2ae6c28e3/xixesibul.pdfIn PDF document text
    • http://thebeautyofdesign.nl/ckfinder/userfiles/files/45869466482.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ttnja8c14lngu9vn2180r29q65/bepudujidex.pdfIn PDF document text
    • https://baxsporthorses.com/userfiles/file/rajolusete.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abb090a29af---vofuravitarumu.pdfIn PDF document text
    • http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c951472d1f4---81733534605.pdfIn PDF document text
    • http://www.sport-konyv.hu/userfiles/file/27584384361.pdfIn PDF document text
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/2768a8738de17a1cce00d786555b1033/xitagekobumomivedile.pdfIn PDF document text
    • https://realestateconnect.us/wp-content/plugins/super-forms/uploads/php/files/d77un9kd4ru9gp1bqqhu57n6o1/93716801710.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_off0000f277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF277 17136 bytes
SHA-256: 0cf2daaf8555c219d5c9c5c149d656ba0db901103b0ecc7f4a3d596eb14d14bb
font_01_sfnt_off00011f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F23 10360 bytes
SHA-256: 94027624fbe8e732d08c9dc59cdad18575c52de66b18b107d00f9f06a0c237bc
font_02_sfnt_off00013696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13696 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1