Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61c18000eb752d7…

MALICIOUS

PDF

296.3 KB Created: 2022-03-12 23:20:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: a4439974b66d9ae5880af3267780ed98 SHA-1: 8244008d8dbf0bb44fc370e48b6c30cb3373155e SHA-256: b61c18000eb752d788cd6413f9993d576fd8f4d75a0c09a9b7c2a8f161ef3061
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6089

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://colod.co.za/XSRYdR1H?utm_term=bully+scholarship+pc+game+free PDF link annotation
    • http://xn--80aikni6a0b.xn--p1ai/images/file/foxulotuzopopitusanopego.pdfIn PDF document text
    • https://supratrend.hu/images/fck/files/91100845151.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/plct3b18q2lu66fqi1e80jo2p4/6429748781.pdfIn PDF document text
    • https://asid.rw/userfiles/file/vidasixuxipetamo.pdfIn PDF document text
    • https://what-the-pho.com/webroot/editor-uploads/files/baxowegi.pdfIn PDF document text
    • http://dragoniresorts.com/userfiles/33870762654.pdfIn PDF document text
    • http://leaguengn.com/userfiles/file///62193493062.pdfIn PDF document text
    • http://pro-roubenky.cz/UserFiles/File/zuvagat.pdfIn PDF document text
    • http://sv-orhidea.ru/upload/files/92342331734.pdfIn PDF document text
    • http://pradakshinam.com/fck_uploads/file/wujepobivi.pdfIn PDF document text
    • https://europawindow.com/app/webroot/img/main_content/files/ruporoxuzarunotiw.pdfIn PDF document text
    • https://vieclamlaocai.vn/webroot/img/files/35954323795.pdfIn PDF document text
    • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/16207578acc902---tepekuroxevumapilob.pdfIn PDF document text
    • https://alfalahmedical.org/c_panel/ckeditor1/ckeditor/kcfinder/upload/files/befil.pdfIn PDF document text
    • http://terrietanaka.com/library/files/91402169424.pdfIn PDF document text
    • https://aiwcecckolkata.org/FCKeditor/file/taxarejefazadofobunanogi.pdfIn PDF document text
    • https://nada70.org/userfiles/file/59190779328.pdfIn PDF document text
    • http://rhythm-thailandagent.com/attach/file/zanenokotizedenevitowuse.pdfIn PDF document text
    • https://pensiuneavalentina.ro/app/webroot/file/93948248509.pdfIn PDF document text
    • http://falconartistmanagement.com/ckfinder/userfiles/files/dexezatonalif.pdfIn PDF document text
    • https://hotararicedo.ro/files/files/vafixepesisifuwesosusejiv.pdfIn PDF document text
    • https://holcom-solar.com/webroot/img/files/12239200107.pdfIn PDF document text
    • http://unleadedcoffee.cz/soubory/wiruvosider.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/161fddf6107fa5---13969691557.pdfIn PDF document text
    • http://mentoslaci.hu/admin/kcfinder/upload/files/mumasezawimidowe.pdfIn PDF document text
    • https://nusbetaja2.com/contents/files/91110913825.pdfIn PDF document text
    • http://joeun-it.com/userData/board/file/ravunikipikisupim.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1621400dbbfc95---26483341919.pdfIn PDF document text
    • https://confidence-ist.com/ckfinder/userfiles/files/tizirezo.pdfIn PDF document text
    • https://www.studiorosaliabusco.it/ckfinder/userfiles/files/76044688640.pdfIn PDF document text
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/90671322881.pdfIn PDF document text
    • https://www.kidilangues.fr/js/kcfinder/upload/files/dapukorupojixufesudire.pdfIn PDF document text
    • http://kimura-shihoshoshi.com/userfiles/file/nezevimiduvadi.pdfIn PDF document text
    • https://bticino-rozetki.su/kcfinder/upload/files/woxepupemed.pdfIn PDF document text
    • http://agro-vostok.ru/userfiles/file/59683541785.pdfIn PDF document text
    • https://www.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/30905381240.pdfIn PDF document text
    • https://marketlayer.com/assets/kcfinder/upload/files/85912882969.pdfIn PDF document text
    • http://harckocsik.hu/userfiles/file/vebikuze.pdfIn PDF document text
    • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/72285358791.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620addb49a348---97743965329.pdfIn PDF document text
    • http://crm333.com/documentos/file/14276275799.pdfIn PDF document text
    • https://ud-hobby.com/images/Upload/file/varevomugewomigugijefe.pdfIn PDF document text
    • https://hainescentreasia.com/images/file/8664829795.pdfIn PDF document text
    • http://thecpg.org/kcfinder/upload/files/31723527536.pdfIn PDF document text
    • https://profession-your-dr.com/uploads/files/202202151414342436.pdfIn PDF document text
    • https://acv-verdun.fr/kcfinder/upload/files/bodavibusasumuteje.pdfIn PDF document text
    • https://xn--lenachatka-57b.pl/uploaded/file/92330739892.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f971a895ad1---36529877769.pdfIn PDF document text
    • http://webmba.fr/client/logo/file/45491559939.pdfIn PDF document text
    +8 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00042db4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42DB4 19148 bytes
SHA-256: 55e6d7415f89973193e6c76b05138af9797b9e6e3214d395ef6959d34c889cbe
font_01_sfnt_off00045fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45FDC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000476fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x476FE 10992 bytes
SHA-256: 1c9b767d08c8a7ec68e5971349432501fd144772d114aa9389415368d0387f0f