Malicious PDF — malware analysis report

Static analysis result for SHA-256 20fe7ce33356e9a6…

MALICIOUS

PDF

99.3 KB Created: 2021-07-19 00:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: efa11444c5a20e64a53f045d692893b6 SHA-1: 7a780cfbc3f441f6eca7813baa8a1269325807b3 SHA-256: 20fe7ce33356e9a6c386d55cc5249411db72d2e429dbe0e49daa88ed94f33592
196 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of an advance-fee scam, presenting a lure related to lotteries or prizes and parcel delivery requirements. The document contains numerous links to external PDFs hosted on compromised CMS upload storage and disposable hosting, suggesting an attempt to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa4d847025---65925700311.pdf In PDF document text
    • https://kme.pl/global/app/webroot/uploads/file/16254074597941.pdfIn PDF document text
    • http://youandisagenix.com/ckfinder/userfiles/files/39189164434.pdfIn PDF document text
    • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/robapovuwakegawujowaviziv.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/a50ad9bb4d20a2d86c19b7f19b66de03/42187461990.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/lilurew.pdfIn PDF document text
    • http://ediljolli.com/userfiles/files/gorulagajinake.pdfIn PDF document text
    • https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/d01b216aeb425e565f9deb304296df38/3050685393.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b3a4dfc78---mawivugunotigopebuvek.pdfIn PDF document text
    • http://5m-tti.com/uploads/image/files/wopivuzoruwaxixi.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160983157c75b9---lenepifasoz.pdfIn PDF document text
    • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081c821ce189---wolizatuwogis.pdfIn PDF document text
    • http://tumwebthailand.com/ckfinder/userfiles/files/zifipovesugogov.pdfIn PDF document text
    • https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/0mb92cks172q6vjnhqomg3fq9p/ludumagumatebudomom.pdfIn PDF document text
    • http://apsons.eu/files/file/47103339511.pdfIn PDF document text
    • http://petersonspann.com/clients/3/32/32c4b2f41fa698b5b938e848169c8dcb/File/pozawamuwosudi.pdfIn PDF document text
    • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/fa5e38003361652c880e46cde18950cc/55601732503.pdfIn PDF document text
    • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16092fcd7b8802---83857681985.pdfIn PDF document text
    • https://edu-mate.kr/_UploadFile/Images/file/41016366479.pdfIn PDF document text
    • https://ofertaromania.ro/ckfinder/userfiles/files/delokopaxelinivariwo.pdfIn PDF document text
    • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1a7d7749e21472ec04bdb0bd96fcfb10/goxugotowo.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/06433d2a72c302df8d97b31a0dcdd0fd/lunekob.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cdf5bda4a71---posuwumukeserunutapes.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=billy+shears+todayPDF 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_off000123e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123E6 10408 bytes
SHA-256: 75f2a11ff9152e6c4d5ad6e2c163a305f48ee3ae02e086f95afeb291755590da
font_01_sfnt_off00013ba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BA2 17084 bytes
SHA-256: de39d55b7ae8f9db43a485a2a55a68b4aebc7c9dd94c83e44a83f5d183080c0f
font_02_sfnt_off00016812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16812 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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