Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a6ca12bf913b08…

MALICIOUS

PDF

89.1 KB Created: 2021-07-04 02:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 0be568de207cd23da845f2a3473d99e7 SHA-1: acf5bf40a90bb469a5d4e3497c7fa0f604a71138 SHA-256: e4a6ca12bf913b08eff2dd9d9d5418d1ea16cbd0f0daa3eb19e1d808972fe1df
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to compromised WordPress sites, suggesting a link farm designed to host and distribute malicious files. The presence of a 'download button' lure and ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates a phishing attempt aimed at tricking users into downloading malware. No scripts were extracted, but the overall structure points to a malicious document delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

Heuristics 8

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/af46591ebaefec797304b98ca13b0307/puzetazefur.pdf In PDF document text
    • http://englandmatchshirts.com/assets/file/59843860127.pdfIn PDF document text
    • http://ipceurope.eu/assets/file/54658077374.pdfIn PDF document text
    • https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/4898f59826df54f3e1f1f83465f09b7d/bikonegudi.pdfIn PDF document text
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609111c3270af---833985187.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f43a3ad9bd---53264601141.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/pbpc38jfhml8anivu7vlgrqm84/27461851689.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff7269f8a6---11503715277.pdfIn PDF document text
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160745e0ec60f7---32724137980.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b08155e9a00---valagifologikozojuzifupol.pdfIn PDF document text
    • http://maihome.hu/admin1/file/sejijozusadefokaliruge.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/d1c9142550c6ad30bb755e3065438004/kimebepisurapifofovirazi.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/t4l1ourgm5p7noruq74q2d0dj2/wezag.pdfIn PDF document text
    • http://newdimension.su/userfiles/file/18169877344.pdfIn PDF document text
    • http://chelseacarpet.com/ckfinder/userfiles/uploads/wopuvasesaxufeworutiges.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5682f1513---leved.pdfPDF link annotation
    • http://renovator.cz/files/file/94704150171.pdfIn PDF document text
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa36530ba8---mepokimekibatudof.pdfIn PDF document text
    • https://beautyyaurient.com/editor_upload/file/juwapipubiserobebupadum.pdfIn PDF document text
    • http://dentalclinicbangalore.com/uploads/65241690350.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/5590c9fd3d2045d17fdba499becc4446/mitotu.pdfIn PDF document text
    • https://amoslodge10.org/ckfinder/userfiles/files/liwol.pdfIn PDF document text
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0e9f5dfec5---vetokidedudojatevivafapik.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=endarterectomy+with+patch+angioplastyPDF 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_off0000fa3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001124e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1124E 16508 bytes
SHA-256: 3d60a2811700ba6e3c1cb9c13ad81d41e9de90bae97c6c426b6da5bfc5e24d70
font_02_sfnt_off00013d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D1E 11144 bytes
SHA-256: a838caca802fb9fbfc804113ac5cf0fb66818f15b25625269dd5ca77244b3f63

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