Malicious PDF — malware analysis report

Static analysis result for SHA-256 875b8545291b8a2a…

MALICIOUS

PDF

361.6 KB Created: 2022-03-28 02:47:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 0838e1a7e3f38ebbc732c19f39b38b22 SHA-1: 6ecb1767121be709aad2804ce3d38b8252f9c3dd SHA-256: 875b8545291b8a2a5c4cee56b742c8ef9dd35d49275306d3ed9bc9b705a82627
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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://wirut.co.za/XSRYdR1H?utm_term=galaxia+la+picosa+guatemala PDF link annotation
    • http://farashimirooz.com/files/66387324601.pdfIn PDF document text
    • http://yoyaku.com/app/webroot/js/kcfinder/upload/files/70214707443.pdfIn PDF document text
    • https://demideopool.ro/ckfinder/userfiles/files/diravokewibofozokutu.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/9rvj7tl4sqk3975epam5a9f16b/napogizidubajal.pdfIn PDF document text
    • http://kbidc.kr/upload/editor/file/1646837846.pdfIn PDF document text
    • https://www.vconsole.com/ckfinder/files/vapemaz.pdfIn PDF document text
    • http://cutskytools.com/d/files/86128428934.pdfIn PDF document text
    • http://msslink.ru/userfiles/files/nofomaviwiko.pdfIn PDF document text
    • http://www.2m-france.com/img/uploaded/file/talegosup.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/a0f7ef628c1ca95f0d9da1946ef0c0d1/balanuwape.pdfIn PDF document text
    • http://nextgenship.net/upload/file/20220304164637106134.pdfIn PDF document text
    • http://yljinbiao.com/admin/upFile/2022-3/file/25032362508.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623ea2dff151b---bepiwogozogulipalov.pdfIn PDF document text
    • https://sibservis.com/ckfinder/userfiles/files/lupikopokesavibi.pdfIn PDF document text
    • http://harlit.com/upfiles/file/ganepebedumotivu.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f8b6aa24ced---valowixamiju.pdfIn PDF document text
    • http://ed-union05.ru/files/file/13346212236.pdfIn PDF document text
    • https://tajeer.co/userfiles/file/rovininusiriwilojodafaxix.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1623723e28b4ca---15660575028.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621d7ed0b9198---vigubotudixexemad.pdfIn PDF document text
    • http://grafitym.kz/files/file/lefab.pdfIn PDF document text
    • https://www.groupe-coelho.fr/ckfinder/userfiles/files/44012561067.pdfIn PDF document text
    • http://ty-int.com/files/files/gazifukesepavifokafinaxel.pdfIn PDF document text
    • http://lindendirect.com/ckfinder/userfiles/files/lexurazerajiriwaxavasifef.pdfIn PDF document text
    • http://samtekelektrik.com/files/33068449881.pdfIn PDF document text
    • http://www.deco-interieure.com/userfiles/file/44212044475.pdfIn PDF document text
    • http://professionalcsali.hu/admin/ckeditor/kcfinder/upload/files/4041754844.pdfIn PDF document text
    • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/ca9031bcbd3ba67fbce4dc7ced5f42b3/24057165.pdfIn PDF document text
    • https://dkglobalrecruiters.com/admin/public/ckeditor/upload/files/44778377291.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1622e51dd2d469---60654733699.pdfIn PDF document text
    • http://www.cemeba.com/uploads/ckfinder/files/20989586229.pdfIn PDF document text
    • https://cbrn.tj/nrsa_system/ckeditor/kcfinder/upload/files/xuwowugagemokisilemepa.pdfIn PDF document text
    • http://be-now.pl/userfiles/file/xixexaroti.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_off00053819.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00053819.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53819 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00054f34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54F34 18760 bytes
SHA-256: 1274718fc56e7e5c48418c6bee921167f74f7991cda1ff94c45faca908d1978a
font_02_sfnt_off00057e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E35 10756 bytes
SHA-256: 1e7f350a3c5a146c8723ca05738c16d9f85d9d07e760ca3a1145651cd9a8d65f