Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a02a52d98cbb7a…

MALICIOUS

PDF

509.3 KB Created: 2022-04-26 02:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: def9b5fc00d3ddcaab799563818950df SHA-1: d482042f6914b47118521a2332962b6ca17048c1 SHA-256: 18a02a52d98cbb7a32b4886f1d5876f33a5865b89731a8ba17994ea0cdeaa805
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5432

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://loheb.co.za/XSRYdR1H?utm_term=converting+feet+to+inches+worksheet PDF link annotation
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/162016af6d8f44---zopokuxosinoliborom.pdfIn PDF document text
    • https://databaze-zdarma.cz/userfiles/files/tosovaviwakikepa.pdfIn PDF document text
    • http://clearspace-design.com/CKEdit/upload/files/82433440829.pdfIn PDF document text
    • https://weishinclinic.com/uploads/files/202203101818339593.pdfIn PDF document text
    • http://qwerty.pl/_data/file/zugamo.pdfIn PDF document text
    • http://onishi-kyosendo.jp/archive/95580081213.pdfIn PDF document text
    • http://tecsun-moscow.ru/docs/file/53869045561.pdfIn PDF document text
    • http://adamstore.medianet-shop.de/userfiles/editor_files/file/lowifibo.pdfIn PDF document text
    • http://hidrometa.com/images_upload/files/68624776567.pdfIn PDF document text
    • https://parc-hotel.info/file/mozabanerixubutegotasavo.pdfIn PDF document text
    • https://ledobosu.weebly.com/uploads/1/3/1/3/131383424/511f5c94e06c.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1620cd9118554f---29151585322.pdfIn PDF document text
    • http://wecans.net/_UploadFile/Images/file/mejobasaderadoguxegi.pdfIn PDF document text
    • http://syntra.pl/userfiles/file/79026073540.pdfIn PDF document text
    • http://gzichina.com/ckfinder/userfiles/files/pimubulikuwuxibokel.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16260f362304fe---10581865111.pdfIn PDF document text
    • http://brette-animation.com/userfiles/file/99138932351.pdfIn PDF document text
    • https://tvmreza.tv/ckfinder/userfiles/files/botavulugix.pdfIn PDF document text
    • https://gotagifegu.weebly.com/uploads/1/3/1/6/131607164/5701306.pdfIn PDF document text
    • https://lefutolemisu.weebly.com/uploads/1/3/4/7/134711730/dowizufobaxezub.pdfIn PDF document text
    • https://hopadive.cz/ckfinder/userfiles/files/3596409029.pdfIn PDF document text
    • http://rovitek.com/userfiles/file/guduzatomijewatokivow.pdfIn PDF document text
    • http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/47988238996.pdfIn PDF document text
    • http://worldplastsolution.com/ckfinder/userfiles/files/65772450201.pdfIn PDF document text
    • https://ovistar-dz.com/ckfinder/userfiles/files/82213771979.pdfIn PDF document text
    • https://finest.ccmgs.it/docs/file/99742052044.pdfIn PDF document text
    • http://dinskayarealty.ru/media/file/mivoguwazubusisogibe.pdfIn PDF document text
    • https://komodovo.ru/upload_picture/77983716912.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_off0007864f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007864f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007864f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7864F 10680 bytes
SHA-256: 15367a8879f6e11c4894b0d2e027c85960b581243a30ff6df0bb5bfd3d9ea4e6
font_01_sfnt_off00079ede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79EDE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0007b6f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6F0 18020 bytes
SHA-256: ec02605acd3825a0ea2c06f9786e9cc5e3ad0ee81aff3529d0ae01368de75913