Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd396ac221c2091…

MALICIOUS

PDF

87.7 KB Created: 2021-08-14 23:13:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 1a7904e89ce8e361db7325bb546657e1 SHA-1: d750c822278027e8a9a95da58287ce67a7479d88 SHA-256: 3dd396ac221c20913dbe2360d64ec33e4d254c2ab01e3e9b6d2d87345f2aab2b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

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://inwebjor.ru/uplcv?utm_term=how+to+take+divorce+in+islam PDF link annotation
    • http://www.groupementpecheduloir.com/ckfinder/userfiles/files/fogat.pdfIn PDF document text
    • http://donkaew-furniture.com/ckfinder/userfiles/files/kalumijetukenazobufuzu.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070928f39b33---soguzo.pdfIn PDF document text
    • http://jpbullies.com/clients/2/2c/2c827f09d77a589c2c5c7da8c033a3f4/File/kopogavojegokepewed.pdfIn PDF document text
    • http://webursitet.org/Files/file/82459637748.pdfIn PDF document text
    • https://taxfirma.com/userfiles/file/sajuxakutebajokokiza.pdfIn PDF document text
    • http://jrjohnsonfamilyreunion.com/clients/0/09/090f04f22b165063c0e57546eb93b169/File/97729110687.pdfIn PDF document text
    • http://sehs67.com/clients/e/e0/e078d4d0076166a7bb489ca3b3a583ab/File/tobavobimajalas.pdfIn PDF document text
    • https://matras-matrasych96.ru/admin/ckfinder/userfiles/files/30190681827.pdfIn PDF document text
    • http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/guluwexevujabikapijol.pdfIn PDF document text
    • https://bahamianbrewery.com/ckfinder/userfiles/files/66841606630.pdfIn PDF document text
    • https://upchealth.net/wp-content/plugins/super-forms/uploads/php/files/9a04937826ac6c169955b8530edaaed2/jurej.pdfIn PDF document text
    • http://rallyteamwalraven.nl/file/36747345675.pdfIn PDF document text
    • https://beauty-full.ru/uploads/files/tofomijoj.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/rarimununigexina.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/lksaef9psinjge83l9c1lm5g0d/90353117932.pdfIn PDF document text
    • http://abwbaltimore.com/uploads/files/93773101525.pdfIn PDF document text
    • http://xinyuemu.net/assets/202106/files/20210616172155114428.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a2bf05b68f5---30609422043.pdfIn PDF document text
    • http://tangiahoang.com/skinkorea/Images_upload/files/vezonopowalulovikegipaxe.pdfIn PDF document text
    • https://k-newsletter.com/ckupload/files/xuvetuvabuxol.pdfIn PDF document text
    • http://kehlux.lu/userfiles/files/nukamekubuwapozipepu.pdfIn PDF document text
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16091348cc51a0---kikuwitigigajaxenisudo.pdfIn PDF document text
    • https://protectname.xyz/whoisprivacy/userfiles/files/pumatulilerutunivatirasup.pdfIn PDF document text
    • https://majorsagilekvaros.hu/uploads/file/60312871626.pdfIn PDF document text
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160893fbb043e5---77834037820.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_off0000f2dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DD 16972 bytes
SHA-256: 2525fbd180e504fb7660780ea463f235b1a02e4aa58866f754346bcf5c3cde98
font_01_sfnt_off00011f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F10 10768 bytes
SHA-256: c3e276a733cb76122471b89fc98e63f16164ca06605010835425d0aa1cd664f2
font_02_sfnt_off000137d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137D6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1