Malicious PDF — malware analysis report

Static analysis result for SHA-256 726a571d1f03be7b…

MALICIOUS

PDF

370.3 KB Created: 2022-02-03 13:44:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-11
MD5: d8dcf38f98eea6d9600d5089a58adc8e SHA-1: 8ebb4ebe8a58fd9d0d300943f504364dbeca2ac2 SHA-256: 726a571d1f03be7b0c845d6fe09761999215e9d1cd48f0ea408c8a47a972b1ba
201 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3776

Heuristics 8

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://lazav.co.za/XSRYdR1H?utm_term=calories+calculator+app+apk PDF link annotation
    • https://www.nstoplana.rs/ckfinder/userfiles/files/46234122544.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/161047648dce5a---lewabovivizagulubolibupa.pdfIn PDF document text
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/b3def6f5490b9f6cf2ff766903f96c74/77823607795.pdfIn PDF document text
    • http://caratow.nl/userfiles/file/jaxuta.pdfIn PDF document text
    • http://medicare-darmstadt.de/bilder/UserImages/file/gilipatekuviw.pdfIn PDF document text
    • https://alquimia.in/admin/fckeditor/editorfile/56060493744.pdfIn PDF document text
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f11f2a1f7c8---wumunalone.pdfIn PDF document text
    • http://mutitar.com/user_img/files/pagamafuboxapiwo.pdfIn PDF document text
    • http://www.icf-plant.com/files/file/nonuxolukazukik.pdfIn PDF document text
    • http://thermcom.cz/userfiles/file/68612060020.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/nofv869trrnpog1clsasohhj3a/pemabarepebuwoduvaku.pdfIn PDF document text
    • http://hengtongrongshang.com/jingkelun/userfiles/files/20210928051305.pdfIn PDF document text
    • https://hyosung-gulf.com/uploads/file/34616339599.pdfIn PDF document text
    • http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8aa9eece6d---wijinakajag.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16105eeaa9872b---77184397417.pdfIn PDF document text
    • http://baudoinfamily.com/clients/f/fc/fc66627f90e8a365851b026dcf169025/File/taduwurizomukegel.pdfIn PDF document text
    • http://boletin.alicantehosteleria.com/lib/ckfinder/userfiles/files/18206962.pdfIn PDF document text
    • http://www.taimaobi.com/admin/ckfinder/userfiles/files/junewinerer.pdfIn PDF document text
    • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1610ff1b0738c7---33146097306.pdfIn PDF document text
    • http://flamefitnessstudio.com/cewit/images/file/jonekitawa.pdfIn PDF document text
    • http://greensketch.in/userfiles/file/45343681183.pdfIn PDF document text
    • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160deb2ec1e5b0---87299764283.pdfIn PDF document text
    • http://kondicionery-bronnitsy.ru/upload_picture/file/81741282698.pdfIn PDF document text
    • https://nationalshield-uae.com/userfiles/files/rogufulevudeduxufu.pdfIn PDF document text
    • https://mediaskills.rs/files/wifolivadutimik.pdfIn PDF document text
    • https://aanzet.ccinteractive.nl/nieuwsbrieven/berichten/90128207252.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/161a1c5a1e0ac1---33798431720.pdfIn PDF document text
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/c2c84c2284fef4ca84cd97e546ec16f2/56670183819.pdfIn PDF document text
    • http://altus.pl/userfiles/file/bifedipidifina.pdfIn PDF document text
    • http://synhbio.com/upload/files/zatojorewak.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/qrdj6mpc7rg8nqq29ms1n1cnbi/66408575805.pdfIn PDF document text
    • http://www.pro9apps.com/app/webroot/files/uploadimagesfile/riritu.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 extracted file (stream_009_off00057be0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_009_off00057be0.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off00057be0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x57BE0 20588 bytes
SHA-256: d9dca90f6113aa1b5acbf266c9b5830ae79c03fd0ca55eb437f0470dc18e5a97
font_00_sfnt_off0005340c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5340C 18592 bytes
SHA-256: c6fd76c0267c80c9ead03e893443d728e57d2edadd251577f1e7a82eca26b701
font_01_sfnt_off000564c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x564C4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00059e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E9E 10484 bytes
SHA-256: e267f529486a076e2de5d1ef09e8ebcba348bde156c3d8f914e0bf45976bbe53