Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e934ca5bed115bd…

MALICIOUS

PDF

84.9 KB Created: 2021-07-02 22:46:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 19d67ac3e4757f68ddc82451020d0928 SHA-1: 9ca2910ac394212d268b4811f29980a18058c08d SHA-256: 2e934ca5bed115bd2f4b218b8bcfe4cb6771aa5ec619afc09e096d6f167eafc7
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to websites that appear to be compromised CMS upload directories. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The file's structure as a link farm suggests it's designed to redirect users to malicious sites, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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 https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c798578189b---soxudokunanovesixutiwi.pdf In PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160cdcfbfaff48---zivuselaworofutit.pdfIn PDF document text
    • http://polyacer-ecp.com/userfiles/files/20210629_225848.pdfIn PDF document text
    • https://actor-conseil.com/files/file/10167747286.pdfIn PDF document text
    • http://slstudio.it/userfiles/files/10101858799.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/gj19u3v59pnl44csmmb5o5adk1/magedujorulebamudipivef.pdfIn PDF document text
    • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a81b1765c18---29664329447.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/osb3gfs1v51lgsbe860048h81q/xaladamevepeniwaja.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/28c99676b6d43b1acad39228dbeb3e04/66476961315.pdfIn PDF document text
    • http://bindashnews.com/userfiles/file/zoladijelomukatale.pdfIn PDF document text
    • https://nanosoft.mn/images/content/File/41591302591.pdfIn PDF document text
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160c2b04b50a97---38862301892.pdfIn PDF document text
    • http://rainbowcaterers.in/userfiles/file/lepoxivugumigulifive.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/odeuj8b7lqoi8flf8b31fm27o7/58211641186.pdfIn PDF document text
    • https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/baf931d5a8aaba42e121e671312cc3aa/20512155399.pdfIn PDF document text
    • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/550efd2042b4e9f09db817f8754ed839/64744872518.pdfIn PDF document text
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/08f5f9fba2aaf55f6726c08d61025fa5/muximodigimijedozu.pdfIn PDF document text
    • https://sonarmusic.hu/up_image/file/16303409932.pdfIn PDF document text
    • https://mimpishio2bet.net/contents//files/20034636077.pdfIn PDF document text
    • https://travelsafeway.com/userfiles/file/zemibabozekibedepa.pdfIn PDF document text
    • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16091a1650a7c0---19170949160.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/lepiflt9bvc66ucj3lbvimh56a/worewamanabome.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/99261658366.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/56765d1f75a3b6fdfc3e80a6ab495116/vapikatinitobapona.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=seriously+good+homemade+coleslaw+recipePDF 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_off0000e7fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7FB 11132 bytes
SHA-256: add5d98a55e69ae4f4da1a00b8253bd04b5922bb769e50fccd962f0761ce0a1e
font_01_sfnt_off000101ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101CE 16948 bytes
SHA-256: 1185581b78d669199e74da7ed12a59d042f32b59086849a3d2b12042e657839c
font_02_sfnt_off00012dfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DFD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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