Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e3dd392424ad539…

MALICIOUS

PDF

86.7 KB Created: 2021-07-09 03:01:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 608f68c855f10518bb91e5f9a0ce0fd7 SHA-1: d75e1bfb9a75e1105366f833be75e4f7116c9056 SHA-256: 5e3dd392424ad5397f0927b25d1cc5c9c0c2adbb385a8cada0f66c64294f4053
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external links, many pointing to compromised CMS upload directories or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is likely used to facilitate the redirection to these malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://capesociety.ca/uploads/files/46646553529.pdf In PDF document text
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/1ef0ad2abcc557cb500482a8fb792e3a/25264315148.pdfIn PDF document text
    • https://its-bulgaria.bg/files/file/joramokef.pdfIn PDF document text
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/2k04nvbu451uaeastiki8bp1if/72441676568.pdfIn PDF document text
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/292770cc91e71c97aa0702ac3d29a871/zofujitozavazabefirereto.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/7522bb33c56cff22997dcb588c884d05/64429069615.pdfIn PDF document text
    • http://mackyz7automotive.com/js/upload/files/bovoretevuwalu.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160878b71d0f22---4969357690.pdfIn PDF document text
    • http://jedwines.com/cmsCart//upload/file/xefuvoxifoxog.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096f333d874f---91313813357.pdfIn PDF document text
    • http://autohondl.cz/userfiles/file/movixedazowukabuxojaxen.pdfIn PDF document text
    • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d35cc7f69e---zojivusagevoj.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0e2c07381---miwizijigipokig.pdfIn PDF document text
    • http://angelojrobles.com/admin_initial_test/userfiles/file/89216557647.pdfIn PDF document text
    • https://la-klamm.org/Files/files/pudepikirojirekepisowexig.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160855de1ac6fa---bidanikotuwojogo.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/459f0bffe96eeb78c2ba106fd445695b/kizubiweloveboduf.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/bh8u29tc75f4pdn39ie5361k9v/71111795623.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e0c946f1d94f044cbf07f4c3f8fa8616/liravitagodidadag.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c887cdf2a76---43310666235.pdfIn PDF document text
    • https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/2665e4da8a53974811a3108bae5d91d5/fekotaxoxirowifogurapeg.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/vudalafibawojobigedagova.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5a3019b35---95780066887.pdfIn PDF document text
    • https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/07c4f67a9ecb2d08e33c372d687fde4a/34728914051.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=how+much+minced+garlic+equal+1+clovePDF 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_off0000f110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF110 10992 bytes
SHA-256: f9c99db5a100213cc6d41ebd235e46f9c4d53b784dcfe5ee54a2c5f49f5a5b46
font_01_sfnt_off000109d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109D6 16940 bytes
SHA-256: c62e7d642beeb21b06a476023a666872c9e4596bf62aa35f57b4101f78312062
font_02_sfnt_off00013561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13561 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1