Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3841250116f28c…

MALICIOUS

PDF

83.8 KB Created: 2021-08-26 09:17:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: ed4e54c1c7d37f2d43764fd6d1d10399 SHA-1: 55b15ab3fed6b2300b670458129ad5b29073eddb SHA-256: 0d3841250116f28c4fa73d061cc7383b7c2fb3fa4bb6b6d02cdf5109df8f961b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9902

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://griby.biz/ckfinder/userfiles/files/66542820173.pdf In PDF document text
    • http://studiolorenzino.eu/userfiles/files/dipusadavumalugedufefo.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075814bac11c---58920382877.pdfIn PDF document text
    • https://bulendengin.com/upload/ckfinder/files/75460846797.pdfIn PDF document text
    • http://christopherspubandgrille.com/userfiles/files/jadedawuworunijewodusapis.pdfIn PDF document text
    • https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/9aef4e9f03ff9c0f9e847d7be9248038/gilowowiwapetuxiv.pdfIn PDF document text
    • https://studiopros.com/userfiles/file/In PDF document text
    • http://bannermaul.com/userData/board/file/9836609116.pdfIn PDF document text
    • http://21cedu.com/pds/userfiles/files/kojasunuwe.pdfIn PDF document text
    • http://k1a.ru/images/files/file/rexikobave.pdfIn PDF document text
    • https://bosgo.mn/uploads/files/jaware.pdfIn PDF document text
    • http://tuclubcr.com/campannas/file/91462853021.pdfIn PDF document text
    • https://metnar.pl/web/uploads/files/24918430923.pdfIn PDF document text
    • http://bbpcosmetics.com/admin/upFiles/2021-7/file/zedoxejanolozatu.pdfIn PDF document text
    • https://monyetmesum.com/contents//files/32120152334.pdfIn PDF document text
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160793b9c90385---watawotipadafivebekag.pdfIn PDF document text
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16078a676f29e9---wedifiwizine.pdfIn PDF document text
    • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/ad8e979788538b10ffdb32e79485d472/medikujuk.pdfIn PDF document text
    • http://bogelaipigeon.com/upload/file/33082431405.pdfIn PDF document text
    • http://forglass.sk/userfiles/file/sijexilikebupiginijum.pdfIn PDF document text
    • https://infrastone.com/userfiles/files/66776814620.pdfIn PDF document text
    • http://heibldr.hu/FCKfeltoltott/file/10500327103.pdfIn PDF document text
    • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/ppq9e0r1uied5836vphkmcjstk/12480334071.pdfIn PDF document text
    • https://laatuwhuisweerstralen.nl/upload/file/57337977002.pdfIn PDF document text
    • https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/8bf33ab1137e46518b9a6a65afc95a5e/6292254607.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607cee789f4ea---33763431934.pdfIn PDF document text
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/90a5722a727afd1497df5bf21bdd0255/fuzasavupibutawekonofil.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=aden+and+ariahPDF 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_off0000e5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B1 9896 bytes
SHA-256: d42eaf07d9653547cc6011a77b519a521ead885b4385950522b9afb568fc3f7c
font_01_sfnt_off0000fb5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB5A 17392 bytes
SHA-256: fea483503b1bb9709ae66b4a7d104e30553d3631b40494ae2634d0ceed86198e
font_02_sfnt_off0001286f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1286F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1