Malicious PDF — malware analysis report

Static analysis result for SHA-256 02dac4a377e4e2aa…

MALICIOUS

PDF

111.0 KB Created: 2021-06-26 09:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6a423ae52f1af619ec6f56fea67ca194 SHA-1: 674623d7690909b389526ec248b9f97408abeb63 SHA-256: 02dac4a377e4e2aa094f0897723250243e18129deefd6ff4f51d455f08c2522e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identify it as a PDF link farm, with many URLs pointing to compromised CMS uploads and disposable hosting. The document body is unreadable, but the presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest the document's purpose is to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://crysiq.ru/uplcv?utm_term=examples+of+cooperative+learning+in+science PDF link annotation
    • https://stopserv.ru/files/file/43466209004.pdfIn PDF document text
    • https://acronimocostanzo.com/userfiles/file/pevoxejebaviruluzexowe.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1609793b88eb95---75076765834.pdfIn PDF document text
    • https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/ljudrspcbus4lm55lk25kjdh2s/kunefarebawopokevex.pdfIn PDF document text
    • http://bodegaadrover.com/userfiles//imagenes/23541631818.pdfIn PDF document text
    • https://michelbarbot.com/upload/files/jibekilewadetevufiru.pdfIn PDF document text
    • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607be052498b6---96965216726.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d08938acfb4---gijikefusatin.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160710f81e43c2---56821620292.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607a154beb1df---zolubewe.pdfIn PDF document text
    • http://emaaravm.net/upload/files/zekavoveval.pdfIn PDF document text
    • http://granitemountainranch.net/userimages/wotexedunozisezogadizagew.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/7ee4658d9846f14464b168fe08a1a3e7/bejosemezuwakifeta.pdfIn PDF document text
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607132213060f---80993754380.pdfIn PDF document text
    • http://haphadoor.com/upload/files/wexelutanebigofeketuw.pdfIn PDF document text
    • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/34ef34941556593547abd2cf0341b22c/loxusolejulajodoz.pdfIn PDF document text
    • http://rotang.net/userfiles/file/nuxogafedobugid.pdfIn PDF document text
    • https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/3fb8655a154438857552ab8c9e72837e/zotizakoxuxukujuje.pdfIn PDF document text
    • https://roweryelectra.eu/app/webroot/uploads/file/16199507070688.pdfIn PDF document text
    • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160ae438d73c59---90523467886.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16076abb7ca611---xiwozeto.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160cf1e3da93ce---sozunawas.pdfIn PDF document text
    • http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4628a1f6c4---furifexaboxazizutop.pdfIn PDF document text
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad939a29ebe---91684715218.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_off00014eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EB9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000166d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x166D0 10972 bytes
SHA-256: 21522e58ec069ae4bc1e1cd98c4b26649e3c94addfd5b76bb7335056e0bb9922
font_02_sfnt_off0001804f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1804F 18036 bytes
SHA-256: 05406572c0fc64a2345f0b518480dbb0c0ad21e5962910959a0105342518f4a1

Open this report in the interactive analyzer, or submit your own file for analysis.