Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c19dcf43c533292…

MALICIOUS

PDF

89.1 KB Created: 2021-08-01 04:05:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 569cc6d09f4245f852f4b5fa9aef25c6 SHA-1: d5d705063208e9a49f124e1ba87df3debd508a06 SHA-256: 6c19dcf43c53329299b0dc9332d45c5a99aa444f967f03bf6126bb374fdbf36f
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier. It contains numerous links, many pointing to compromised CMS upload directories and disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of these links suggests an attempt to distribute malware or conduct phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160765aa7e09d7---62571083568.pdf In PDF document text
    • https://netwindowvn.com/uploads/userfiles/file/fubojiz.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/34975402542.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9379934b5---55112836712.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee95b95cd1---42474191148.pdfIn PDF document text
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608669b36b020---nedukaxoletovoveguxin.pdfIn PDF document text
    • https://yuss.it/file/69134238232.pdfIn PDF document text
    • https://topupdana.com/contents//files/wegeruj.pdfIn PDF document text
    • https://motty-etai-sharon.com/files/files/4628324450.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160856c4f83eea---tigowuxewevelip.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f07baba802---xesase.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/16094c6fd754f2---19315770601.pdfIn PDF document text
    • https://www.haievent.com/wp-content/plugins/super-forms/uploads/php/files/8td12q62r35h9q1fgequqfb4j7/38178308631.pdfIn PDF document text
    • http://ahkkpcm.org/userfiles/xarasogozebuzaj.pdfIn PDF document text
    • https://actorconseil.com/files/file/83114458023.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3837dc1925---25937551653.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/mc7b974dmaetvlu5aeh9ga8n5k/lawopukarogowe.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/8ed0281c8fb2bb2ffe60159b886910bf/pamawefuwafijagogexixuv.pdfIn PDF document text
    • http://residencecarlofelice.com/userfiles/files/zopizosedukixupatiximo.pdfIn PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/f8fckr14asn0frijsp98qpn0ei/95561372217.pdfIn PDF document text
    • http://studiotecnicoforace.eu/userfiles/files/fuguvib.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/ogjmbituh29c3d12ueu7mmgov1/50197736218.pdfIn PDF document text
    • https://dnmpaint.com/sdcc/images/file/vetukug.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+make+traxxas+rustler+4x4+fasterPDF 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_off0000f389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF389 19812 bytes
SHA-256: f382305d03494560241177ef19c44fc88a202acb73b1d32d66519a31427a644f
font_01_sfnt_off000125a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125A6 10628 bytes
SHA-256: d631a36e6a4272cb3e188211a468efc1272ea9945bdb582659391490962b99d9
font_02_sfnt_off00013e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E21 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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