Malicious PDF — malware analysis report

Static analysis result for SHA-256 425442bc2060748a…

MALICIOUS

PDF

351.9 KB Created: 2022-01-24 19:41:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: a923356b4731e33b907e11203d8d7dd3 SHA-1: 8668154cd96155fd8bc06e6c95f058b1a7a3315b SHA-256: 425442bc2060748a746dd722b435ad9c735a140b22541a88e7e8cee40e452075
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6817

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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 http://kimsanghun.com/upload/userfiles/file/20211018142759053.pdf In PDF document text
    • http://telesson.net/_UploadFile/Images/file/bumodusajejumedewunaru.pdfIn PDF document text
    • http://duet-czluchow.pl/userfiles/file/visumavetibeferebowetibu.pdfIn PDF document text
    • http://lahma.pl/_u/userfiles/file/zigenutinetigijum.pdfIn PDF document text
    • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e4dbcc30e7c---redujenarodagetomaza.pdfIn PDF document text
    • https://dolaodong.baohohoanglong.com/userfiles/file/linifetevadinamodo.pdfIn PDF document text
    • http://a-mega.ua/images/uploads/file/nujukotemavajodujokasalo.pdfIn PDF document text
    • https://mimpiindahsatu.com/contents/files/51852067876.pdfIn PDF document text
    • https://dialogueinpraxis.net/files/docs/53826705876.pdfIn PDF document text
    • https://sezam-doors.com/userfiles/files/fajiwofitil.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/tarerukeb.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1618f8527002f2---nolizu.pdfIn PDF document text
    • http://www.dkmodels.net/ckfinder/userfiles/files/5791275165.pdfIn PDF document text
    • http://allivecoat.com/userData/board/file/91739017676.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/bd17b5add2a73c98684950271f4c1170/21303626251.pdfIn PDF document text
    • https://twinslock.com/ckfinder/userfiles/files/furobonom.pdfIn PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a5053186a1f---lajavakofegufamepaxumon.pdfIn PDF document text
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/a285dc25fd0f1a0dc5d9c640ae06ce41/43146386786.pdfIn PDF document text
    • http://mwcapital.net/ckfinder/userfiles/files/66197097580.pdfIn PDF document text
    • https://dodatkireklamowe.pl/web/uploads/files/bodukuwu.pdfIn PDF document text
    • http://cestovni-postylka.eu/userfiles/file/27845838903.pdfIn PDF document text
    • https://kiptep.ru/file/puxikobibune.pdfIn PDF document text
    • https://stiglic.sk/userfiles/file/xepagoxonetivosixinatav.pdfIn PDF document text
    • https://businesslife.com/content/files/18535836068.pdfIn PDF document text
    • https://jordan.si/dokumenti/file/laxuwafeloxifuniji.pdfIn PDF document text
    • http://bitcollege.in/admin/kcfinder/upload/files/sulutikobilizenizunolo.pdfIn PDF document text
    • http://pietrek.com/MARCUS/files/file/lexokewezowaliga.pdfIn PDF document text
    • http://riskhedgetech.com/uploaded/file/19428902861a3509b733bc.pdfIn PDF document text
    • https://venefoil.com/ckfinder/userfiles/files/16654593554.pdfIn PDF document text
    • https://manage4.realtourvision.com/rtv/ckfinder/userfiles/images/files/pifuvag.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614910bb95e72---nosulamozexik.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1617fca412b302---68442178264.pdfIn PDF document text
    • https://reha.bg/content/upload/file/kilujimoxepapekol.pdfIn PDF document text
    • http://radyoislam.com/resimler/files/36783335437.pdfIn PDF document text
    • https://razredna-nastava.net/files/gulexurimojafevefirewilar.pdfIn PDF document text
    • http://pokebarslo.com/uploads/files/nozomogofupi.pdfIn PDF document text
    • http://www.agot.pl/upload/file/walegeviwapu.pdfIn PDF document text
    • http://mexvp.com/ckfinder/userfiles/files/tidadufafur.pdfIn PDF document text
    • https://sharmtocairo.com/userfiles/files/rokexoxirumetejowiten.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/896FEnmJZlk/uplcv?utm_term=coconut+flakes+nutritional+informationPDF 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_off000513fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x513FA 16456 bytes
SHA-256: 2bbf61ff096d0c083d1b162e495745f2501bd564591cbc03ba025d5be190006f
font_01_sfnt_off00053e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E8C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00055530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55530 10720 bytes
SHA-256: 8955500ccf5028340196545530422fffd88e0d68efcd91ca5f1f5dcb2c4c5f32