Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1a710b75976769…

MALICIOUS

PDF

91.2 KB Created: 2021-06-30 16:43:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 9e1d09eb123926076267a22590bb6929 SHA-1: 489f907c94d19b718f387dea20269260d05228d6 SHA-256: ea1a710b759767690251597fb3a60eb299616282068cb2ecc549bba0b54ff8bd
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links, many of which point to compromised WordPress upload directories, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the nature of the links and the detection results point towards a phishing or credential harvesting attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0cf85e98a---zemolimatejimofuzoruzon.pdf In PDF document text
    • http://ketnoikienthuc.com/upload/files/89825692544.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/22eb10aa5ff4f75c7b28753138858806/65534918225.pdfIn PDF document text
    • https://baptistfriends.org/media/danibutetefabawe.pdfIn PDF document text
    • https://parklanehotel.asia/userfiles/file/5399392126.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/8f40f0c04be0365f716f8636e32a0e6d/21517563121.pdfIn PDF document text
    • https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094a7c887df4---23562150566.pdfIn PDF document text
    • http://foto-preiss.at/upload_files/files/3789535754.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160bcd2591ca84---futeziwisudumelunog.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16075c6cd2bd15---gixipifupezelopafa.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097e34c5f3a1---fazawajetivori.pdfIn PDF document text
    • https://aimhc.com/userfiles/file/45531238718.pdfIn PDF document text
    • https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/uqqh0qul8amhdaaidnqs35oqta/jawibimovagogomesu.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce62d5b011b---zegamisarutogirovajulas.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/jilokusudaxaloxotiluri.pdfIn PDF document text
    • https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/01c05dba755a9773896155df69309fa7/vitotatabi.pdfIn PDF document text
    • http://www.multigacos.com/admin/uploaded/fck/file/98595642657.pdfIn PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/4a2c3c47c748rkbkf0s2h76fb3/pemunerowubimanumemezixu.pdfIn PDF document text
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/6augh4p802a4tiin7h1rfn49o0/47530758168.pdfIn PDF document text
    • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/u30a6vq5ov3uddpttqvogplsfl/6515851021.pdfIn PDF document text
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/360eb2f7765df2013d64799ed5580c81/92044970840.pdfIn PDF document text
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/bd3bf2d8e12fd66913afc60bcaedd442/fubijokofodidujokogixi.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/8674c4e0d37755dc8a71bcb953946e1c/dowanezewixolose.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ac68c1885bc---91351505490.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f58027f7e2---kexefage.pdfIn PDF document text
    • https://hanurichurch.org/ckfinder/userfiles/files/65999578547.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=best+read+the+bible+in+a+year+appPDF 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_off000102aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102AA 10676 bytes
SHA-256: b3d19fd08364bc46fbc5d0216ee4ab392acd3f29e76b01949b3bcea3498a78db
font_01_sfnt_off00011ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AD7 17084 bytes
SHA-256: a382d7f8dc0cdcc3492954f2b6a2faf549760aff26402adc206d12340f0093d2
font_02_sfnt_off0001475f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1475F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1