Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb6b745dc6a51e7…

MALICIOUS

PDF

83.9 KB Created: 2021-07-04 06:29:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 5737a69610bb61994a7cc96253242c11 SHA-1: 86bf77fd4e9de0378eb0013285b88fd559f38747 SHA-256: 2eb6b745dc6a51e723573d14a55ddffc6eaafb515940094c940aac9aed61bc77
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm or phishing lure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to trick users into downloading a secondary payload or visiting a phishing site. The presence of a 'download button' heuristic further supports this phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://coretry.ru/uplcv?utm_term=printable+bill+of+sale+form+for+car PDF link annotation
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080115e2a836---wipasizanavon.pdfIn PDF document text
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/86d4d20eadb9d0a6774e89cd6cc74719/wivoki.pdfIn PDF document text
    • http://mousike.it/img_ins/files/bufirovuxepifarixapu.pdfIn PDF document text
    • https://sunnyvale.com/wysiwygfiles/file/vimagafidafuzifewafejew.pdfIn PDF document text
    • https://actorconseil.com/files/file/76378020364.pdfIn PDF document text
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/54258bb118e5bc363d77aa4833f4d64c/subesag.pdfIn PDF document text
    • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/vhajlmt0e9dge81p29jv5d77a3/92438722052.pdfIn PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b8e786e6aa8---59015249907.pdfIn PDF document text
    • http://sieuthibds.net/images/files/susonizopawewowojap.pdfIn PDF document text
    • https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/ca1fa7196b313c64b2242b180153b553/62589023278.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608702596af7a---77693628666.pdfIn PDF document text
    • http://boratohumculuk.com/ckfinder/userfiles/files/gatifokokep.pdfIn PDF document text
    • http://blissworldbeauty.com/newerac2c/userfiles/file/rateropomojelameg.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16071b803417e5---tesimubenopi.pdfIn PDF document text
    • http://www.bandungmesin.com/file/28964140882.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/55371158272.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607843006e09d---naxokuxisazobu.pdfIn PDF document text
    • http://www.pattyn360.com/upload/forum/files/73669567569.pdfIn PDF document text
    • http://ahxxzx.com/userfiles/202105/file/wujoruxinepopujimip.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/9805081008.pdfIn PDF document text
    • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160db5359ef0ab---93374659670.pdfIn PDF document text
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160814ad8a6adf---sinurewusow.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_off0000e641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE641 16792 bytes
SHA-256: 12990fd956614ea361374d9c92d0c361255b0e1034e759985f866b81c1889527
font_01_sfnt_off0001122d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1122D 10640 bytes
SHA-256: 04a923ec5b223259fa271018bf4abfdb4317485a4c69cdbbab0db87d80560ee3
font_02_sfnt_off00012a89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A89 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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