Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b576377d90e0a8…

MALICIOUS

PDF

90.7 KB Created: 2021-10-09 17:21:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 33af99ec4a65c87b3d531e7b936669f4 SHA-1: a281c09519d24b8d1172520c775eba521c711bc7 SHA-256: 72b576377d90e0a8c6c19fe17613b6410aa9444a0eed32b5d79a05a1a7874d7a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://kawanmto.org/contents/files/35606129684.pdf In PDF document text
    • http://rileyillustration.com/images/agency/files/jilujik.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/se9g0m1571ejo6i081ps9pcgit/31888511712.pdfIn PDF document text
    • http://www.rodnolespropertymanagement.com/siteuploads/editorimg/file/19865810607.pdfIn PDF document text
    • http://achwvs.love-mrt.com/upload/files/37835437709.pdfIn PDF document text
    • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/cnptt53hbqhu2mlpdig4vsuvt5/bugemivutobumogigipemed.pdfIn PDF document text
    • https://crownprolaw.com/userfiles/Proj_Name/files/86141955687.pdfIn PDF document text
    • http://ventilatoryzlin.cz/images/file/77002508931.pdfIn PDF document text
    • https://uangraja.com/contents/files/rodowivajiwa.pdfIn PDF document text
    • https://raljob.com/userfiles/file/tovosawajozutasimuwogijiv.pdfIn PDF document text
    • http://lingvastar.z-i-g-z-a-g.com/userfiles/files/keniwumofojusur.pdfIn PDF document text
    • https://soi.icami.mx/ckfinder/userfiles/files/rolaruzekopozefokekixava.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/pd0qdml6qbj7rcbp1ui7bo34dk/mebalodigupo.pdfIn PDF document text
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/vgso56ten95tecrb70ch67lkhv/7808230670.pdfIn PDF document text
    • https://impulsa.mantareys.net/uploads/plantillas/files/38108104377.pdfIn PDF document text
    • http://chikatere.com/Upload/files/mepuwirejapivopile.pdfIn PDF document text
    • http://shacklefordlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/digexugom.pdfIn PDF document text
    • http://venusland.vn/app/webroot/img/files/81063267343.pdfIn PDF document text
    • http://etkenkalip.com/files/zosazez.pdfIn PDF document text
    • http://union-montage.pl/userfiles/file/71984229571.pdfIn PDF document text
    • https://principesgs.com/userfiles/file/wugifiputesemi.pdfIn PDF document text
    • http://vinhhangvien.com/upload/files/48779577647.pdfIn PDF document text
    • http://dieutrimun.myphamkangnam.vn/webroot/img/files/70985437842.pdfIn PDF document text
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1615a62dc1b668---tatupusikutamira.pdfIn PDF document text
    • http://alexdisinfestazioni.com/userfiles/files/gatakazuveladu.pdfIn PDF document text
    • http://www.badischer-kunstverein.de/ckfinder/userfiles/files/guwaxodenijelenug.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=drinking+protein+shake+before+bedPDF link annotation
    • 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF925 19964 bytes
SHA-256: e7e8d48fb4a62ca20e052d6f914e14942c0c3f4e54d5cb884e7650e907874d37
font_01_sfnt_off00012bdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BDC 10964 bytes
SHA-256: b392dd97e37a07bccad750fb96e8000d7f508a43348d78a8385993ebdf4ebd63
font_02_sfnt_off000144d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144D0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1