Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bce652f494bbac…

MALICIOUS

PDF

68.6 KB Created: 2021-09-25 03:14:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 16a8beb1108fa5977214dee6b2f41405 SHA-1: dc4a9eb48a4aee48181622d498214b69f45f90ae SHA-256: 72bce652f494bbace110421fc3af594de0dc086fb8c1598ea2fdab503633802f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 http://bangkokmagnetwire.com/ecodev_test/image_system/files/zunefugebulijujad.pdf In PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132b482f364c---perazutizalukegibijus.pdfIn PDF document text
    • https://ciiinnovationsummit.com/ci/userfiles/files/milutez.pdfIn PDF document text
    • http://massvt.sk/editor_uploads/system/files/53842515299.pdfIn PDF document text
    • http://stickerbarcode.com/file_media/file_image/file/visefax.pdfIn PDF document text
    • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/1dab43d4c47907b1bb0338bf6ceee346/8199199118.pdfIn PDF document text
    • https://bela.geekers.tw/upload/file_folder/file/52939597610.pdfIn PDF document text
    • http://delve-cr.com/uploads/pufos.pdfIn PDF document text
    • http://svaz-podnikani.cz/files/file/wubuvexakekinaxufokajak.pdfIn PDF document text
    • http://gmei.lt/ckfinder/userfiles/files/ximevuwajenib.pdfIn PDF document text
    • http://kredoteka.ru/uploads/file/25068262468.pdfIn PDF document text
    • http://euroteam.vn/ckfinder/userfiles/files/35255130673.pdfIn PDF document text
    • http://doremimarlikinsaat.com/userfiles/file/7913636225.pdfIn PDF document text
    • http://www.zdravotechnika.com/ckfinder/userfiles/files/gatasugikibedulimeralil.pdfIn PDF document text
    • https://praktijk.zorglink.nl/ckfinder/userfiles/files/33787192441.pdfIn PDF document text
    • http://diennuocdanang.com/uploads/image/files/8072120325.pdfIn PDF document text
    • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16142c3ec52eef---soxozam.pdfIn PDF document text
    • http://autoscuolecasetta.it/userfiles/files/43021658504.pdfIn PDF document text
    • http://wenxuezj.com/images/File/sujiloketudinalezanag.pdfIn PDF document text
    • https://publicbridge.pl/userfiles/file/veriguze.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=gameboy+emulator+download+for+androidPDF 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_off0000aea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEA0 10828 bytes
SHA-256: 2e978840c5063362aff5ec725440ef02bf52de572026643d56a82dbdd0eaefca
font_01_sfnt_off0000c7a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7A7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000dfb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB9 14760 bytes
SHA-256: 644b99d7270fb4d8ae52f67f8034c3b6971247fe44aa29fb536c5dc29cbaff5a