Malicious PDF — malware analysis report

Static analysis result for SHA-256 94de97eb32c94713…

MALICIOUS

PDF

87.1 KB Created: 2021-06-26 05:11:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: aba00bce0063d5eace8634f8476c4128 SHA-1: aa1b5765158439ba42772895ab0ed3d2aba32a7c SHA-256: 94de97eb32c947130a8f422eff42ce5dd5641f0daae140ecd8255b6074c613c1
156 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous URLs, many of which are hosted on compromised WordPress sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. The presence of multiple links on potentially compromised infrastructure suggests an attempt to obscure the true destination or leverage existing vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/v7gid79g5ibr5uvrhpb04er898/24795815165.pdf In PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/u91up1hov0d2mrhmhsi03hurqk/5452960697.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/c8cdf04d2b8ee4f1569d33ebcb79cccc/sadenelofaseran.pdfIn PDF document text
    • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ba3c9110890---sulaxare.pdfIn PDF document text
    • http://hoteldanang.vn/uploads/images/files/93360025711.pdfIn PDF document text
    • http://trendymamy.pl/userfiles/file/77817815827.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/069abb5ebf1b59494f9d3c194103bd68/24670295579.pdfIn PDF document text
    • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/052571928df2e5d22d2a567aea4dc974/nakokejivamet.pdfIn PDF document text
    • https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/cauc3orb6hgjqbu4bho6prhkfr/79418146616.pdfIn PDF document text
    • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608803d0a2606---pixonufuwila.pdfIn PDF document text
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/d057453c048302d01dcdc7aec550232a/xuweruvelufij.pdfIn PDF document text
    • http://skyfestival.kr/ckfinder/userfiles/files/fokelitamam.pdfIn PDF document text
    • http://matstravel.ru/userfiles/file/66999750037.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/3gg72bnt7ve2htn2p682dpe9l1/solumevupekukenuramen.pdfIn PDF document text
    • http://divorcefinance.nl/uploads//file/71097702352.pdfIn PDF document text
    • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/12b3piotg0b825v1gq6k36ujnj/24613462777.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/0ud93es3sft0debsja1ppmc7e0/jubovozadu.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1608d5c9381447---61658129940.pdfIn PDF document text
    • http://africanhairbraidingsalon.com/userfiles/file/gefapavev.pdfIn PDF document text
    • https://amatnieks.com/pictures/image/91476338685.pdfIn PDF document text
    • http://sacoorhealth.pt/site/upload/file/sobuxobixudavi.pdfIn PDF document text
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/19jh4euinfd5f3erf33169vmq3/20775615874.pdfIn PDF document text
    • https://satybharat.com/ci/userfiles/files/91190792853.pdfIn PDF document text
    • http://bogelaipigeon.com/upload/file/magotomutafixamobimevu.pdfIn PDF document text
    • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/4adb11ad907aa14554a48980d7e3c5c3/16276865031.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16086bcdef0c6d---41416598470.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b6a2e7b9cb5---tixapiko.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=giving+to+the+poor+is+lending+to+godPDF 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_off0000f036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF036 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10848 17200 bytes
SHA-256: acb503711d81f6e13ba40a4ef22934307f61972c3fed37df4939adbd7194eb63
font_02_sfnt_off00013509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13509 10616 bytes
SHA-256: 555242908b4b19e20a567d026f0d351a18dc1d1c598c1237f5119e364a0abb85