Malicious PDF — malware analysis report

Static analysis result for SHA-256 057d7c92eb150bc0…

MALICIOUS

PDF

65.4 KB Created: 2021-06-02 16:13:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 349358075d4e13f893cf07f69208039c SHA-1: 34315751d3fd1801d9d09ddf1f3d0f004c2d6894 SHA-256: 057d7c92eb150bc00ddca59a0d7a8ae85e95922ea87d1092192f7e22b1308e98
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm to distribute further malicious content or phish for information. The document body, though heavily obfuscated, appears to be a lure related to a 'biblical dictionary'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9819

Heuristics 5

  • 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
  • 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://garglob.ru/uplcv?utm_term=diccionario+biblico+catolico+le%25C3%25B3n+de+four+pdf PDF link annotation
    • https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/d8b56adacb2135db31047823adecd967/xusikafukafa.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd1fb7bce7---zivude.pdfIn PDF document text
    • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bdebc078cb---56267674351.pdfIn PDF document text
    • https://akapacha.com/userfiles/file/zuguwufimapegavetafixux.pdfIn PDF document text
    • https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/b395e3cfb6c002733549201e95c9ae65/44326393434.pdfIn PDF document text
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1a9d32fa0---rufolirupiwewimodogum.pdfIn PDF document text
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609630f776607---377546828.pdfIn PDF document text
    • http://sxhk365.com/uploads/file/%5C/tubulidevaxuv.pdfIn PDF document text
    • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/db85aa2db9721d33013c6db3f0aa037f/wopowuvomigoliwopo.pdfIn PDF document text
    • https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/b7f6cd758cd0a819cd941cd72aa328d1/dazumanuxuxakewutafev.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/av1dee9p8sdgmiqi76oj7i53n6/dezuximixowolug.pdfIn PDF document text
    • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/da2176e1c6feac6f809174bee3e0070e/sagawagafabovizutusajabop.pdfIn PDF document text
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160775186e2ea6---zitawamuwerejamunolita.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD386 5244 bytes
SHA-256: b1b1d05d03748082d6d6848d9ff373c73e34592083af2b59eb5353400b5156d9
font_01_sfnt_off0000e52f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52F 12520 bytes
SHA-256: 94c4b7d67e3e12f2aeabfd9bce082e0e7d70c9cabd7b6103d4e7d5cdfc17f705

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