Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1b0e97574c9234…

MALICIOUS

PDF

464.4 KB Created: 2022-03-06 17:49:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: a5a2b366be10adc6e903ee3b13b57a1c SHA-1: fd5facc8ccf116bfd3ce8073c1ff7237858d694d SHA-256: 5a1b0e97574c9234c81296f9fc476746a26d2a9b1097b0130bdd8127cb3d7c07
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2601

Heuristics 7

  • 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.
  • 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=geotechnical+design+report+template PDF link annotation
    • http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/penap.pdfIn PDF document text
    • https://upsoul.com.br/assets/kcfinder/upload/files/kabagupetirefelunule.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/fd4223f0cfc7d2fca0626a79507fe82e/nosipisinirubuxixas.pdfIn PDF document text
    • https://sadrabfars.com/upload/files/poxafajakikuluxepox.pdfIn PDF document text
    • https://jung.su/kcfinder/upload/files/fuborotus.pdfIn PDF document text
    • http://sladkiy-ostrov.ru/userfiles/files/50821234326.pdfIn PDF document text
    • https://wiercenie-studni24.pl/files/files/fujuzam.pdfIn PDF document text
    • http://gira-classix.su/kcfinder/upload/files/43625241927.pdfIn PDF document text
    • https://codefon2.solar-napkollektor.hu/js/ckfinder/userfiles/files/lizavulibavi.pdfIn PDF document text
    • http://polethique.ch/uploads/files/zelefinosixela.pdfIn PDF document text
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/162098e1897a41---nanivirenimorenapemof.pdfIn PDF document text
    • http://promerilaclama.com.tr/panel/kcfinder/upload/files/14413372852.pdfIn PDF document text
    • https://bk.elbasyacademy.kz/vendor/admin/kcfinder/upload/files/96396012871.pdfIn PDF document text
    • http://xageunion.com/userfiles/file/dosuviwojotafesojejate.pdfIn PDF document text
    • http://manhchenang.vn/webroot/img/files/86248287339.pdfIn PDF document text
    • https://www.rioclaro.com.co/kcfinder/upload/files/64315117405.pdfIn PDF document text
    • https://watertorens.nl/userfiles/file/zemuxodobogowaguzijum.pdfIn PDF document text
    • https://kristaldicarlo.com/userfiles/file/tosasefewotopimamowuti.pdfIn PDF document text
    • http://dj-venci.com/uploads/pages/files/poxidizobepesufap.pdfIn PDF document text
    • http://china-zub.ru/userfiles/file/21740465841.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/161fe1fd8ec655---36239288938.pdfIn PDF document text
    • http://vivaldiskibus.com/FileData/ckfinder/files/20220303_D16C4FE2AB535E7C.pdfIn PDF document text
    • http://plenerowe.kbo.pl/files/file/gazivogexanegiborisa.pdfIn PDF document text
    • https://vikta-fish.ru/upload/files/ludaguzufir.pdfIn PDF document text
    • https://giyimkent.formenemlak.com/upload/ckfinder/files/nalusiverubo.pdfIn PDF document text
    • http://kme-kme.cz/files/file/potoletepafatabu.pdfIn PDF document text
    • http://nirmalapublicschoolerumely.com/userfiles/file/73505889876.pdfIn PDF document text
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/h9mdogsa8dsp2a885p78bj453p/4469389531.pdfIn PDF document text
    • https://greenways.at/userfiles/file/melewexepabirud.pdfIn PDF document text
    • https://brawlcall.com/ckfinder/userfiles/files/73285880746.pdfIn PDF document text
    • http://stihoplet.by/upload/editor/files/67659243746.pdfIn PDF document text
    • https://maggies-handmade.com/UserFiles/files/wividumokejalidasipisar.pdfIn PDF document text
    • http://webursitet.org/Files/file/22726692452.pdfIn PDF document text
    • http://yoyaku.com/app/webroot/js/kcfinder/upload/files/fizudeperotobiwigesa.pdfIn PDF document text
    • http://otohondamientay.com/upload/files/roneluxorefomigaza.pdfIn PDF document text
    • https://sokolzgierz.pl/web/uploads/files/rulinajoxunodof.pdfIn PDF document text
    • https://www.liad-alger.fr/admin/style/js/edit/kcfinder/..%5Cimages%5Ccontenue/files/70314058637.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006bfc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFC5 20908 bytes
SHA-256: 55d44e381a2baac43c0e40187ff90e75cbfe8e1a2ff76b1180c02c6b059ce071
font_01_sfnt_off0006f6c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6C2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00070de4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70DE4 11000 bytes
SHA-256: 9fe96b173e733c4e9ff469f3204402894ec1192972e0d248c7bdb0266baf2d48
font_03_sfnt_off00072711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72711 1668 bytes
SHA-256: 0a4af374cb035e676210909e4790276a619635896d879aefac6ffd5912e9aefa