Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7a593b9ccf0fbc…

MALICIOUS

PDF

81.0 KB Created: 2021-09-29 05:51:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 434f0f6d77b16ee78ee5207daf69543c SHA-1: 03838f87a4f17362ddf60c24fec7a354d31bd07a SHA-256: cd7a593b9ccf0fbcad60f6b299d35102cfd480e4a09edb88adc81128b26d0e5b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9780

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://kme.pl/global/app/webroot/uploads/file/16323003922325.pdf In PDF document text
    • http://agavietnam.com/img/files/gobelux.pdfIn PDF document text
    • http://radtel-sport.pl/userfiles/file/30157519414.pdfIn PDF document text
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/3isr06auknc1lj4q2pjmlurslu/63722870333.pdfIn PDF document text
    • https://nutstudio.it/userfiles/file/98697633843.pdfIn PDF document text
    • http://gandolfiarchitetti.com/userfiles/files/9972499880.pdfIn PDF document text
    • http://kirsanov-maslo.ru/uploads/relotezanimiwalibiwarubip.pdfIn PDF document text
    • https://catequesisnavarra.org/guiarte_userfiles/files/jajugereduv.pdfIn PDF document text
    • https://eijo.in/ckfinder/userfiles/files/77583634528.pdfIn PDF document text
    • http://abwlargo.com/uploads/files/72752048277.pdfIn PDF document text
    • http://veterinariacasettamattei.it/userfiles/files/44091565504.pdfIn PDF document text
    • http://tuvanluatdanang.com/upload/ck/files/17022350639.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161489f8dd8a75---zixugaruputi.pdfIn PDF document text
    • https://www.asoriofrio.org/ckfinder/userfiles/files/69438542415.pdfIn PDF document text
    • http://ausietech.com/images/file/55169776647.pdfIn PDF document text
    • http://adabaskimerkezi.com/upload/file/terogi.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1614b1572be06c---tufazapamezegopo.pdfIn PDF document text
    • http://boldogelet.hu/media/risugegunajigu.pdfIn PDF document text
    • https://mytopics.it/uploads/file/vuvexezibopabufusuroruz.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613a6ca9b2026---femeweporinikoru.pdfIn PDF document text
    • http://dade666.com/userfiles/202109file/2021091123140470554.pdfIn PDF document text
    • http://statsale.com/data/upload/ck/files/72704259689.pdfIn PDF document text
    • http://areaengineeringsrl.eu/userfiles/files/fozovejimimobozozag.pdfIn PDF document text
    • https://umartravel.com/files/lodupim.pdfIn PDF document text
    • http://angel-conference.org/upload_fck/file/2021-9-4/20210904213153755064.pdfIn PDF document text
    • https://profix.fr/ckfinder/userfiles/files/80024497202.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=android+nas+music+playerPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB5C 19664 bytes
SHA-256: f96862514635f7a62cc4daaffed746b3991b9dd24ee0b45dea6adb8a2e7b9d5d
font_01_sfnt_off0000eeae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAE 10772 bytes
SHA-256: 649430a577521761c9fd0c1fbcc6296c8cd5384767e56427ce66fd4c7bcd9d8c
font_02_sfnt_off00010772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10772 16188 bytes
SHA-256: 800554d3d6320da9c8ab21a3ad3d270f40e7a92360d7538c059d647d952d1d34
font_03_sfnt_off00011d28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D28 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1