Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b5f8542b9fd399…

MALICIOUS

PDF

77.2 KB Created: 2022-04-12 13:56:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 85cfac41164757166e00fd9b4837160c SHA-1: 4591779d5fb35ccadb19b8d6c10276316c5b3c18 SHA-256: 72b5f8542b9fd399d8c48154c4ce60112a1d8aa900b61e22260dce6be0cd4d09
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fecuq.co.za/YmrXLWy8?keyword=why%20does%20my%20cordless%20phone%20say%20no%20power%20at%20base PDF link annotation
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/16229ecd95b850---toreguma.pdfIn PDF document text
    • http://www.sport-konyv.hu/userfiles/file/dujigonegikevarisabu.pdfIn PDF document text
    • http://pujcovnanaradi-tvarozna.cz/userfiles/files/67767436059.pdfIn PDF document text
    • http://vagtteam.dk/userfiles/Files/zodujonagunizizel.pdfIn PDF document text
    • http://ceemafor.com/catalogue/upload/document/87498256333.pdfIn PDF document text
    • http://sgadsahodayatarntaran.org/sahodyatarntarannew/userfiles/file/jojanisarotelawalak.pdfIn PDF document text
    • http://garant-fond.ru/ckeditor/ckfinder/userfiles/Images/files/43935300940.pdfIn PDF document text
    • https://www.assofmt.org/ckfinder/userfiles/files/figomunidepo.pdfIn PDF document text
    • http://zuche0551.com/upload/file/27400450156.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16206955a4a23b---tafutulug.pdfIn PDF document text
    • http://anapro.com/ckfinder/userfiles/files/rufasexen.pdfIn PDF document text
    • http://ramenzoni.eu/userfiles/files/gutawozugofalonaxo.pdfIn PDF document text
    • https://textosolutionslinguistiques.com/upload/editor/file/30525567625.pdfIn PDF document text
    • http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/92372127614.pdfIn PDF document text
    • https://www.piramideidiomas.com/ckfinder/userfiles/files/lurawekilori.pdfIn PDF document text
    • http://dagmare.de/userfiles/file/zenevemewenidatigakewap.pdfIn PDF document text
    • http://ttmplus.com/userfiles/files/rapekusepupux.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/51514f23e9377b6dd51ba4331bc7b1ec/rusevoluxudugisad.pdfIn PDF document text
    • http://taaltoetsvo.nl/userfiles/file/zefawaworirekegowek.pdfIn PDF document text
    • https://towa-aaa.jp/userfiles/file/kilazezurutis.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 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_off0000c5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ddc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC8 11020 bytes
SHA-256: a1226795e64bc543daee8f1e868f19c050dfa31de53671e8468544cf94fb7bbc
font_02_sfnt_off0000f70f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70F 17476 bytes
SHA-256: bb2d8b30c951736da613c2a641aba0d3c273cfcd3d3ad801fc6e6c0d1619e366