Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ed4ef01d72c4c5…

MALICIOUS

PDF

107.9 KB Created: 2021-06-29 01:49:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 3bbe98eb58fbcf76c23c44706168b6f0 SHA-1: dbda6b848d935f7f2f660d067e20d3f5663a6e37 SHA-256: f2ed4ef01d72c4c57ac59ecb67d82251c07ff37dcefee092da3e490eeb3fa746
156 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to lure users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, so the primary attack vector appears to be social engineering via the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9882

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.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/uua6kas8u8vmgtuqvotnuhphid/38170703383.pdf In PDF document text
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/a2764bca49c7447af979133bf08fc970/nokisepomezezogom.pdfIn PDF document text
    • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160729fc901a9c---wuvevaxuzeseleg.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073587499729---25975077369.pdfIn PDF document text
    • https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/vebapaketimutemoxo.pdfIn PDF document text
    • http://nakajima-ya.com/upload/save_image/files/64226085242.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160854a61a78fe---80170110220.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607564bba25ad---junawelolizepisevukor.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16091e18a82b62---dulapadiwuverudiwipeb.pdfIn PDF document text
    • http://canavesiobruno-architetti.it/userfiles/files/70497541807.pdfIn PDF document text
    • http://poltinka.ru/userfiles/file/pirekajamewutalimajubaso.pdfIn PDF document text
    • http://africa-emergence2019.com/userfiles/file/58062160708.pdfIn PDF document text
    • https://banktapeunadana.com/tapeunadana/bank2/admin/userfiles/file/96200915399.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607dcfaa97193---vamul.pdfIn PDF document text
    • http://bajajsports.com/userfiles/file/lafegikab.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b1d7ceb0f---nanekenuzol.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7d368cc81---31009156028.pdfIn PDF document text
    • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/1c7ee2259b0bf79e58587fd3d3da967c/59582215689.pdfIn PDF document text
    • http://minutemen-jrotc.com/clients/84940/File/74730634380.pdfIn PDF document text
    • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/188da605f68d396f210a800a3566dcc3/mojaloboliriwatipis.pdfIn PDF document text
    • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/ea76i92vh6hnb9h70adqa2hh8p/74089109547.pdfIn PDF document text
    • http://urgentcarepb.net/userfiles/file/kulekufomujibugidenuxasa.pdfIn PDF document text
    • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/dapovalekizukarutamabuba.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=download+pokemon+omega+ruby+3dsPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12797 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FA9 18432 bytes
SHA-256: 4b9058ed44e5fac4df087408ad4522df0baafc37978881fda1f7d42bc2534902
font_02_sfnt_off00016fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FE4 11252 bytes
SHA-256: 885b3a3db8e863fb16160ed85227a7e9f4e674335c9630d26549d88a1e5d7dad
font_03_sfnt_off000189e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x189E7 16316 bytes
SHA-256: e456fec5953656cc52705a962b681d07ac9180ff0253770264bd8da0e8caf90b

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