Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b49d559fb1ba8f…

MALICIOUS

PDF

154.5 KB Created: 2021-12-06 23:08:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 89a11cd8fbe348118af2cd233075c6c3 SHA-1: 959a047de40570d6c41395275cb32bd92e2e29d8 SHA-256: 72b49d559fb1ba8fea36933d20fe888da843b9498e6f222793c57cb239793ce7
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9518

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://manu-transport.com/documents/file/piruxaxusutobubimat.pdf In PDF document text
    • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/c1ec4a6b466095e18ff46dd4787a0b04/35118557369.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16162dc9202429---xegunuzetedakuruxowu.pdfIn PDF document text
    • http://women-for-marriage.com/ckfinder/userfiles/files/27133236191.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1619442f2ef150---89119727112.pdfIn PDF document text
    • http://awarelaxcentrum.cz/user_files/file/22090161028.pdfIn PDF document text
    • https://pelletier-tp.fr/ckfinder/userfiles/files/63253531080.pdfIn PDF document text
    • http://simonide.org/userfiles/file/87144934538.pdfIn PDF document text
    • http://pietroquatriniarchitetto.eu/userfiles/files/47891440418.pdfIn PDF document text
    • http://terredellamagnagrecia.com/userfiles/files/32288138257.pdfIn PDF document text
    • https://gestionarival.com/userfiles/file/fodujabo.pdfIn PDF document text
    • http://flex-link.cn/uploadfiles/files/21598162610.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616c55ab7f569---dupumulaseregepozaminize.pdfIn PDF document text
    • http://vivatbacchus.hu/files/file/zokaxav.pdfIn PDF document text
    • https://belretail.by/ckfinder/userfiles/files/36190876913.pdfIn PDF document text
    • https://digitaluzaktanegitim.com/calisma2/files/uploads/zudaniberanixolexexun.pdfIn PDF document text
    • http://sparan-art.ru/ckfinder/userfiles/files/nekozibosa.pdfIn PDF document text
    • http://markone-tools.com/upload/files/63655611536.pdfIn PDF document text
    • http://andrelandberg.com/userfiles/file/3073960211.pdfIn PDF document text
    • https://festival-bg.com/media/ckuploads/files/piwizu.pdfIn PDF document text
    • http://japanbizkorea.com/userData/ebizro_board/file/dopup.pdfIn PDF document text
    • http://auburn-companies.com/userfiles/files/98440647573.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619fbd58774e3---rowidejigofobowaxatuxuf.pdfIn PDF document text
    • http://zbraneklapka.cz/ckfinder/userfiles/files/zewuvolo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/Z3ufxtS7Wvw/uplcv?utm_term=modelo+de+base+de+datos+relacionalPDF 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_off0001fdb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FDB5 10496 bytes
SHA-256: 0fff28d42b5dcd13b3dfacff9e504fab6c0b08523e8d3972218fe6543836ce50
font_01_sfnt_off000215ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x215AD 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00022c4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22C4C 18164 bytes
SHA-256: 6bb3d0cc67fe563126082a42061189388c126c50d3eb79848ee7f0d9037707d2