Malicious PDF — malware analysis report

Static analysis result for SHA-256 425386a02613e142…

MALICIOUS

PDF

77.0 KB Created: 2021-09-03 10:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 1d992f61e844a1b328747d8aa761e7bc SHA-1: 20ce3fb44dfd41fde6c16d3b356fdff340a8f757 SHA-256: 425386a02613e1422f6b75b251003e7431bfa9c89de30118f399ab3a68db7743
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://holzbau-napetschnig.at/lofarelirexugulafulu.pdf In PDF document text
    • https://ozsersogutma.com/upload/files/pipiduxutexabo.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/0020ded40d64efbb4db2233d766a235e/rubokixe.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16085e6ce055b2---vazamixafetini.pdfIn PDF document text
    • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/0bkugkdcgrg6lmic8busfdne11/11216342270.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a3c6c972e---97446823296.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16085dd0d0c5ab---xitinalilisuzura.pdfIn PDF document text
    • https://sikanderajam.com/Robinson/ckfinder/userfiles/files/17323864243.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160882c737f201---wivumuge.pdfIn PDF document text
    • http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d7648c4f7---99755977368.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3cc07426e2---69099287269.pdfIn PDF document text
    • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/42ef079f7b5505a5cb03653a135dfc29/23672255237.pdfIn PDF document text
    • http://etre-belle.su/images/file/puwevifijirijefujitovi.pdfIn PDF document text
    • http://euromarkcreations.com/new/fck_img/file/94975454876.pdfIn PDF document text
    • http://954move.com/clients/4890/File/18647445506.pdfIn PDF document text
    • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/328aa10fbd1c95a8d643414b69218be0/pafajarekigit.pdfIn PDF document text
    • http://neoneofitou.com/ckfinder/userfiles/files/67662811996.pdfIn PDF document text
    • http://bollywoodsalonskokie.com/admin/images/file/61048741700.pdfIn PDF document text
    • http://tanriovermensucat.com/uploads/genel/files/13525823114.pdfIn PDF document text
    • http://techniq.ae/admin/uploadfiles/file/32817956541.pdfIn PDF document text
    • https://fishboat.hr/files/waregewimevomowa.pdfIn PDF document text
    • https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/c7113a1fb4db2d245816e0fe2f92399e/befuzibebipimenujekuvonob.pdfIn PDF document text
    • https://zemiigori.com/uploads/file/loxalafaxujiratolopomeze.pdfIn PDF document text
    • http://sampsonancestry.com/clients/d/d9/d9bd9208c4e45de01aa31840e3a8c66b/File/94490290826.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=lg+blu-ray+disc+home+theater+system+manualPDF 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_off0000c7f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7F8 17272 bytes
SHA-256: db18b7e88ced6f45deb1001de7867ff09a16aed9870a3bba5259f6767771b729
font_01_sfnt_off0000f4c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CDB 11160 bytes
SHA-256: 9fac9b68a63a5676329dc7a567215663c1525fce27a69e7aafec239f380593bb