Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a2edbb950fced4…

MALICIOUS

PDF

321.0 KB Created: 2022-02-15 23:21:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: 71d3b0a17e11e9e263a6d2c3227adceb SHA-1: 9a426417cf876f0f1c957b558702259b4b861ec0 SHA-256: 18a2edbb950fced458cbbfaa7ce47d9d1763837a0764cf4ab6cafe9a3eb571ab
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6324

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://cafij.co.za/XSRYdR1H?utm_term=abdal+hakim+murad+books+pdf PDF link annotation
    • http://nb-magnet.com/upload/files/88468398393.pdfIn PDF document text
    • http://spc1991.com/ckfinder/userfiles/files/balewada.pdfIn PDF document text
    • https://liguecasa.mmsfoot.com/stock/file/98455654090.pdfIn PDF document text
    • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16107326c5f925---godilinipotiwu.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152548268ff0---gosupisekirezoto.pdfIn PDF document text
    • http://ccforum.kr/uploads/file/1634601984.pdfIn PDF document text
    • https://varoslod.hu/kcfinder/upload/files/87064323247.pdfIn PDF document text
    • http://distant-property.ru/fck_editor_files/files/zapelekotifidajopowe.pdfIn PDF document text
    • http://anhuizhkj.com/upload_fck/file/2021-9-4/20210904230526304219.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139891a8a6d8---wisujirutazaminexozukab.pdfIn PDF document text
    • https://paixaodecristopi.cinemadossertoes.com/kcfinder/files/degugowegexemuno.pdfIn PDF document text
    • http://podolsk-kondicionery.ru/upload_picture/file/63511725868.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16162240fde6b9---8427364382.pdfIn PDF document text
    • http://fittbikese.hu/files/file/murikivu.pdfIn PDF document text
    • http://kimwendelldesign.com/ckfinder/userfiles/files/pinizugosapokajefawufake.pdfIn PDF document text
    • http://win-sonic.com/ck_imgs/files/77244478893.pdfIn PDF document text
    • http://thaoduocquyhiem.com/userfiles/image/file/16173456557.pdfIn PDF document text
    • http://lotusromeo.fr/app/webroot/files/userfiles/files/93002488629.pdfIn PDF document text
    • https://namkhoasaigon.vn/web/images/files/galepeduga.pdfIn PDF document text
    • https://chilepools.com/contents/files/rezobubupunazil.pdfIn PDF document text
    • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161959d15cee9e---tepibovisoz.pdfIn PDF document text
    • http://gencatakan.com/upload/file/84106085678.pdfIn PDF document text
    • https://everywheregenes.com/uploadfile/qu26_qu106_com/files/45686979661.pdfIn PDF document text
    • https://feng-shuiworld.com/userfiles/file/87108610426.pdfIn PDF document text
    • https://atvatextile.com/upload/ckfinder/files/62076120499.pdfIn PDF document text
    • http://aroma-es.site/yamituki-n/uploads/files/warotaretezalaxofolup.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/gaputebuloxol.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619fc397f042c---88033529158.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1618cb6085968a---wukuzirevezopitobatona.pdfIn PDF document text
    • https://allmassage.net/upload/file/20210909170237.pdfIn PDF document text
    • https://condominiobrisasdelnorte.com/userfiles/file/47350316912.pdfIn PDF document text
    • http://topimmigrationlawyer.org/ckfinder/userfiles/files/29856975984.pdfIn PDF document text
    • https://dtd.com.pk/ckfinder/userfiles/files/76847086361.pdfIn PDF document text
    • https://bandotrading.com/uploads/file/kujitolosetezuna.pdfIn PDF document text
    • https://hongdung.vn/ckeditor/images/files/62429945923.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/62146191190.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_off00047c15.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00047c15.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047c15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47C15 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_01_sfnt_off000491fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x491FA 10740 bytes
SHA-256: 805e5576f6aba38c675b163c65f2dd5285dcee92de8fad24634bec24b624b5dc
font_02_sfnt_off0004aa5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA5C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off0004c177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C177 19328 bytes
SHA-256: 41b7628329d29416d2304a10414933807cab190491942ba73781e0f97d78d9ee