Malicious PDF — malware analysis report

Static analysis result for SHA-256 88be880b6630b4bd…

MALICIOUS

PDF

404.6 KB Created: 2022-03-04 12:26:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 0c844f0504bde9c4f84a2c07a8497534 SHA-1: f289103bb0b9043ccd6a6caf53e129ed958a0914 SHA-256: 88be880b6630b4bd644520a0ae6e5d13fe4f6e7c19017b950456c782ec1a51f2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6418

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 https://yoyep.co.za/XSRYdR1H?utm_term=civ+6+starting+guide+reddit PDF link annotation
    • https://www.pelicanfinancialnetwork.com/ckfinder/userfiles/files/jevosigufujexaxetumumani.pdfIn PDF document text
    • http://sirindhorn.net/upload/File/lanemowisam.pdfIn PDF document text
    • http://ccemax.com/js/kcfinder/upload/files/85334649858.pdfIn PDF document text
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/1adbb650f39059c282f93575e6409c2d/95493184023.pdfIn PDF document text
    • https://vasekupony.sk/jsc/kcfinder/upload/files/pekojoxetiwerapaberebil.pdfIn PDF document text
    • http://cinebuzz.be/uploads/userfiles/files/fulapemetibobonadasel.pdfIn PDF document text
    • https://www.invidea.it/kcfinder/upload/files/zipolen.pdfIn PDF document text
    • http://ck-buhgalter.ru/userfiles/file/42763823784.pdfIn PDF document text
    • https://www.trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/65171563106.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/nkbmt4c9m8kpj5v0h25stpv267/54817150641.pdfIn PDF document text
    • https://rtvpuls.com/ckfinder/userfiles/files/12482238706.pdfIn PDF document text
    • https://living-stone.lu/userfiles/files/93269417863.pdfIn PDF document text
    • https://www.giromarilia.com.br/plugins/kcfinder/upload/files/jajeninofodakaduwon.pdfIn PDF document text
    • https://ost-fogging.com/upload/files/gepanu.pdfIn PDF document text
    • https://kudusde.org/resimler/files/30594289294.pdfIn PDF document text
    • https://duhocblueocean.vn/ckfinder/userfiles/files/rejirukikafar.pdfIn PDF document text
    • http://mariekevanvlierden.nl/survey/userfiles/files/23506534025.pdfIn PDF document text
    • http://ibookingkr.com/FileData/ckfinder/files/20220303_BF0E772D5D7544C4.pdfIn PDF document text
    • http://conf.gorganiau.ac.ir/kcfinder/upload/files/56132939265.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/14903451807.pdfIn PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/sofamaxulopowodilijet.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/78895549335.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fdc2afaf9d5---lanidasuromaxi.pdfIn PDF document text
    • http://kkc1.org/htdocs/cljr/data/files/18642911838.pdfIn PDF document text
    • https://synodradomski.pl/userfiles/file/97101772548.pdfIn PDF document text
    • http://mensagemcrista.com.br/ckfinder/userfiles/files/29429553415.pdfIn PDF document text
    • http://conganbacgiang.vn/app/webroot/uploads/files/60897888310.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16216696d99d9e---72399935166.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/161f87163b1229---vagivudefirafifitaz.pdfIn PDF document text
    • https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/20095056823.pdfIn PDF document text
    • http://davobio.com/upload/files/26411028161.pdfIn PDF document text
    • http://ljsmelt.com/upload/files/346158381.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/161fe1fd8ec655---36239288938.pdfIn PDF document text
    • http://groupelamiri.com/uploads/FCK_files/file/24699457699.pdfIn PDF document text
    • http://amis-simserhof.fr/kcfinder/upload/files/kukiwutovimadiwozedodefe.pdfIn PDF document text
    • http://yeke.com.tr/public/kcfinder/upload/files/kugeri.pdfIn PDF document text
    • http://andi-nails.oldalunk.hu/userimages/files/69610382481.pdfIn PDF document text
    • http://p-jtech.com/userData/board/file/fumeselageme.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 (font_00_sfnt_off0005e273.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005e273.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005e273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E273 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005f993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F993 10620 bytes
SHA-256: b9e9b8b2c7d560ae2ab2449916310f694d6dd34623e447d157d91ad56bd63172
font_02_sfnt_off000611e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611E2 18076 bytes
SHA-256: 0c4999377d112bb57a93d3de2a41431de34a8ee159a55d99c21b0c84445c6468