Malicious PDF — malware analysis report

Static analysis result for SHA-256 68501d69ced4b141…

MALICIOUS

PDF

74.6 KB Created: 2021-07-02 14:53:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: baf0850be76d7b9c047cde62d9cdc238 SHA-1: 0b4855ffd2bf17e9b71574abef528a405d468f03 SHA-256: 68501d69ced4b14140feb86fb876610d6d985d39c4b3dfd1e6f463ff19b87fbe
156 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the presence of multiple compromised upload URLs is a significant indicator of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9840

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://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/df620c3c378e193191a2841f11f95c70/88489816182.pdf In PDF document text
    • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d190308cb12---fulilewavupevez.pdfIn PDF document text
    • http://goldenbaycruisesagent.com/userfiles/file/jekufuri.pdfIn PDF document text
    • http://logtech.cz/foto/Image/file/midadox.pdfIn PDF document text
    • http://dongsachhanoi.com/webroot/img/files/37888866300.pdfIn PDF document text
    • https://seerupit.dk/assens/file/39618317054.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc662535ae---doneviwanapiso.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/h239af4bs7qpiove8ve1oemtcc/72619520060.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/30fab24cddcdf8cc20e66a23fe3241c0/17938780457.pdfIn PDF document text
    • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc26d6b4b0---37736130707.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a27e5e2e2ec---49588015418.pdfIn PDF document text
    • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/c6934238784f35667c3d1f89d2b52d4e/bebinugamejax.pdfIn PDF document text
    • https://kaptenhoki.com/contents//files/5678154984.pdfIn PDF document text
    • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086707ad8b94---rijidunagexupifefarej.pdfIn PDF document text
    • http://cpbnatation.fr/fckeditor/userfiles/file/60600648149.pdfIn PDF document text
    • http://csc0351.com/userfiles/file/20210702020850_7sm5tb.pdfIn PDF document text
    • http://101-games.ru/images/uploads/files/nudukiwopafe.pdfIn PDF document text
    • http://rogo-rotterdam.nl/files/42489721544.pdfIn PDF document text
    • http://albatrossmrn.com/konadnew/userfiles/file/pukunuvofewaveg.pdfIn PDF document text
    • https://feldmann-spedition.de/pics/userfiles/file/45207528670.pdfIn PDF document text
    • http://geriatriccarenewjersey.com/userfiles/files/38724174092.pdfIn PDF document text
    • http://exhibitionchannel.com/upload/37835274516.pdfIn PDF document text
    • http://www.makattakasinti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1910ccbed---91520835071.pdfIn PDF document text
    • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/7a3voig7h2t2boino1muihh8jc/95233507435.pdfIn PDF document text
    • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/8rq9isssgrq4opdt9298r3b31g/75696145938.pdfIn PDF document text
    • http://cocoal.com/uploads/file/jusowanivofevika.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=party+wizard+clash+of+clansPDF 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_off0000c14e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC14E 10704 bytes
SHA-256: ba8f41e16b7fabc65fd917d9770f12207deeb6bc4ea12f326760c2d049835625
font_01_sfnt_off0000d9e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E2 16576 bytes
SHA-256: aef68c2858dd143097f3b1ebbbc92634273b37ed95192db38603a45b643950ee
font_02_sfnt_off00010504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10504 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1