Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ea0bc7fac22ad8d…

MALICIOUS

PDF

84.1 KB Created: 2021-07-08 06:30:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ea5e588c03b2bcb50899d832b20d5297 SHA-1: 9cb8eb8601316f3cf03588c5cc20aa52abea7e77 SHA-256: 8ea0bc7fac22ad8d93aaf210708f58d972246553b4bf65c190056a38a5b7c54c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting it functions as a link farm. The presence of these links and the overall structure indicate an attempt to direct users to potentially malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://wastran.ru/uplcv?utm_term=how+to+get+marker+off+of+fabric PDF link annotation
    • https://stmarys-perthamboy.com/upload/File/wovozotokiwufef.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/8mp43q20eoi2kgcch04dbhqjdq/forezobanusezodamok.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aaac54efcb7---46698658648.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac52fa33a3---26642147090.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160961a941f157---19642576184.pdfIn PDF document text
    • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb36128f50---9872470824.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/2ab4159ed1a6d063d7f6c5c00503da61/sefixur.pdfIn PDF document text
    • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/8qh87f90hknlsug8u5rikrubk7/74030527866.pdfIn PDF document text
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160c51f04b8205---nonifajugomod.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088e8820824a---31909022239.pdfIn PDF document text
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16099e8be024f0---moxabivoberot.pdfIn PDF document text
    • https://mojer.bg/files/24664491120.pdfIn PDF document text
    • https://vansuloi.com/uploads/userfiles/file/tuvefimudatisenusepiwifu.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f646e85f7f---keretisupimedipigu.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/ff54dc92a19b9a157ef20f057f2ea750/10988042211.pdfIn PDF document text
    • https://hagepoorter.be/files/files/gikazefenozimegunolidu.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/sobuwagatigivezeba.pdfIn PDF document text
    • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c776e184e3b---wumopan.pdfIn PDF document text
    • https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/94232429374.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe7ea973c7---87786845477.pdfIn PDF document text
    • http://patrick-vallot.com/upload/files/gudagizegawedukejaw.pdfIn PDF document text
    • https://giga-tronics.com/userfiles/files/kamewawezoroge.pdfIn PDF document text
    • http://yonseri.org/userfiles/files/99183960168.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/14343fdcae1fa74acc97a440f21c6806/35014177412.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_off0000e770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE770 16624 bytes
SHA-256: 86698f84d3c45cd0c372ff2276d2966e405c0ed98d6bfcaf1c22c9b822b752e1
font_01_sfnt_off00011290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11290 10672 bytes
SHA-256: 2584437a8a1871456ca7e7d9a7df5e3f259db6619bee3c31b61cef891f03dc85
font_02_sfnt_off00012b1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B1F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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