Malicious PDF — malware analysis report

Static analysis result for SHA-256 1913ea1b6cefabbf…

MALICIOUS

PDF

128.1 KB Created: 2022-03-18 12:51:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 684fe749ff615a2982a9f6841d8ae950 SHA-1: d2b23b7b13e249f49244d435d34f0138da7b3cc1 SHA-256: 1913ea1b6cefabbf06b9c4259503071ead5db0cbbbeef9db0531297ff0e958e1
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://wirut.co.za/XSRYdR1H?utm_term=fidaa+bengali+movie+song++webmusic.+in PDF link annotation
    • http://nhatminhtrading.vn/app/webroot/uploads/files/63139569767.pdfIn PDF document text
    • http://colorfusion.us/admin/images/file/fojuzelevefivutevezul.pdfIn PDF document text
    • https://sabagdasarov.ru/upload/file/zosedep.pdfIn PDF document text
    • http://tko.wavedev.net/img/files/files/55829672488.pdfIn PDF document text
    • http://cvc.ochodnica.sk/userfiles/file/nuwomuzowexudef.pdfIn PDF document text
    • http://clubselectionvoyages.com/images/file/zanasawowubum.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620886bef20f5---siwup.pdfIn PDF document text
    • http://lexxyin.net/files/fckeditor/file/tesaj.pdfIn PDF document text
    • https://lerivagedesmilleetangs.com/caningest/images/file/zilumiturapip.pdfIn PDF document text
    • http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/16303546105.pdfIn PDF document text
    • http://zrdb-drogbud.pl/Upload/file/mugofi.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16212d624ada32---73808945126.pdfIn PDF document text
    • https://niagarablock.com/application/webroot/userfiles/file/78767174886.pdfIn PDF document text
    • https://www.bsff.com/kcfinder/upload/files/vewekagelalitow.pdfIn PDF document text
    • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/49926970593.pdfIn PDF document text
    • https://pielinks.com/UserFiles/file/1625090699.pdfIn PDF document text
    • http://conganbacgiang.vn/app/webroot/uploads/files/xarijeretamogojitaredokep.pdfIn PDF document text
    • https://www.yamamotonouen.jp/js/kcfinder/upload/files/dararobata.pdfIn PDF document text
    • https://muratay.nl/userfiles/file/matibida.pdfIn PDF document text
    • https://boucherienabli.com/uploads/FCK_files/file/3606005375.pdfIn PDF document text
    • http://thepssmi.org/kcfinder/upload/files/34401103018.pdfIn PDF document text
    • http://computerdoki.hu/user/file/jidobiwuzofipofunatot.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/162161c08d00e1---jelowipowonepimag.pdfIn PDF document text
    • http://tecs4.com/intranet/ckfinder/userfiles/files/94200245020.pdfIn PDF document text
    • http://mariamozharova.ru/uploads/files/lojivekolelip.pdfIn PDF document text
    • http://ieclop.pnl.ac.id/asset/kcfinder/upload/files/18171806843.pdfIn PDF document text
    • http://robedecreateur.com/img/files/xaruvulezupurafuvi.pdfIn PDF document text
    • https://konferencia2014.medius.sk/userfiles/file/fazobefafidukuzejodeta.pdfIn PDF document text
    • http://soundspace.eu/Upload/file/52014121195.pdfIn PDF document text
    • https://bedandbreakfastholten.nl/userfiles/file/xilagozopupubuguri.pdfIn PDF document text
    • http://alanurturizm.com/rsm/files/xujajadotogox.pdfIn PDF document text
    • http://studiomanzetti.it/userfiles/files/99697378590.pdfIn PDF document text
    • https://paardenwelzijnscheck.nl/app/webroot/files/ckeditor_files/files/degonoguxifoxilovibep.pdfIn PDF document text
    • https://gemwares.artchy.com/userfiles/file/dapavuxi.pdfIn PDF document text
    • http://eprl.korinthos.uop.gr/openwebquest/ckeditor/kcfinder/UPLOAD/files/doduluvinukegenepivisomob.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/91423802112.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_off00018ee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18EE1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0001a601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A601 10948 bytes
SHA-256: 5da8daa5842f4231cfffc61734014a012afa98ab48231b3a3b0cff119086ac17
font_02_sfnt_off0001bf26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BF26 18700 bytes
SHA-256: 244bb64db3410553adbbef8dd16bd8b1a64f4bb7722bf55ceb1f66e866366c68

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