Malicious PDF — malware analysis report

Static analysis result for SHA-256 69204c4c8eba1453…

MALICIOUS

PDF

83.3 KB Created: 2021-06-26 21:38:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: cf782176270f5d4964bd91675121cebe SHA-1: 8311d46ae437f818313c6cefe69e1e88bfffd463 SHA-256: 69204c4c8eba14531259c203f6a25f69c904429f0409ef50139f1761d51f456b
176 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating it is likely a phishing or malware distribution lure. It contains numerous embedded URLs pointing to compromised WordPress sites and disposable domains, suggesting a link farm designed to redirect users to malicious content. The file's structure and URL patterns are consistent with efforts to obscure the ultimate destination and evade detection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://nomylo.ru/uplcv?utm_term=pdf+to+word+converter+online+free+editable PDF link annotation
    • https://larustt.com/upload/ckfinder/files/wulakabiku.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af8a96ac689---39761435485.pdfIn PDF document text
    • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/33pbntbdfd01qcgggt0fp68s2n/banopuwosidovepuxu.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/5ea6e26835d17e740f7a59c422e57601/95008796703.pdfIn PDF document text
    • https://gawwaclsc.com/app/webroot/upload/files/35540704689.pdfIn PDF document text
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/87f6d95877a4b25ded2941d4a592072b/lupokuvigenowediwedegip.pdfIn PDF document text
    • http://bigsvatcharasith.com/userfiles/file/23883580376.pdfIn PDF document text
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b3c0899e0---958131425.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed2e63a50b---fivor.pdfPDF link annotation
    • http://jevades.com/aircraft/fckimages/file/65498390384.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/ohkk8gtmicgnelgc1kudrv5om3/16559615392.pdfIn PDF document text
    • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2a658a833---83369240333.pdfIn PDF document text
    • http://bbfederico2.net/userfiles/file/rowakitema.pdfIn PDF document text
    • http://bjjiffy.com/upload/deratij.pdfIn PDF document text
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608122462a3e0---tadasilot.pdfIn PDF document text
    • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/999dbbc6e305149888bce4ea8dd7c453/merudawewozaruzilodoseji.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/nck52trgqf51f76aed2q01thcr/24507604621.pdfIn PDF document text
    • http://zonazero.es/userfiles/file/vuzujanumolapozupum.pdfIn PDF document text
    • https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/13fbc9b08d32ebe3855cff84a6145e0c/44201565768.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072d3e38a03a---zireselas.pdfIn PDF document text
    • http://webinaris.org/ckfinder/userfiles/publics/files/54204518200.pdfIn PDF document text
    • http://zamokugrofa.sk/admin/fckeditor/file/fekowoxapusas.pdfIn PDF document text
    • 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_off0000e444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE444 10592 bytes
SHA-256: 3cff1871315433e0942e1acad3cc61e98fb3ed8f0bd403810a750c4ae2378224
font_01_sfnt_off0000fc9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC9D 16720 bytes
SHA-256: 90f4337da082380929226a6e3a087b7f2f1580d4a0c152e470842204fb240984
font_02_sfnt_off000127e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127E2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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