Malicious PDF — malware analysis report

Static analysis result for SHA-256 4459d58586ea5e3c…

MALICIOUS

PDF

77.5 KB Created: 2021-08-01 18:44:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 0d6a8a547a75ad8eeb75268b1ff0d059 SHA-1: 32779a7ea4af9484875af6ec6a5825424757fa9c SHA-256: 4459d58586ea5e3cf245111604e2e9944ab8305687f41a4ab2fd5db247410e64
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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://crysiq.ru/uplcv?utm_term=salo+a+los+120+dias+de+sodoma+online+subtitulada PDF link annotation
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbec697aab---90191245270.pdfIn PDF document text
    • http://apcmagon.com/userfiles/kegoxe.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//63356611088.pdfIn PDF document text
    • https://dagvandearchitectuur.be/_files/file/49380501274.pdfIn PDF document text
    • http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/80432345722.pdfIn PDF document text
    • http://4grd.com/cmsimages/file/zokun.pdfIn PDF document text
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/4bc9cc1885bfc6c1f8c65e4d8ff398d2/74903168990.pdfIn PDF document text
    • http://moda-minulosti.cz/docs/momin/file/nekawotenulelexerosagavam.pdfIn PDF document text
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/3904b904531b51d9e069437434d4a17d/mufisiruxemugidu.pdfIn PDF document text
    • https://affordans.com/ckfinder/userfiles/files/fetugef.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16094a149c8a26---68041548251.pdfIn PDF document text
    • https://reparationmobile.net/userfiles/file/gikasukupe.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5d43376fd5---1679714226.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16106a66508988---xofuwabaworu.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/abe407cdb1f088bf99646de9da1de415/57731399184.pdfIn PDF document text
    • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609107659a7ce---punogalunovufikiduk.pdfIn PDF document text
    • http://vandervalk.reviews/app/webroot/files/userfiles/files/71359021833.pdfIn PDF document text
    • http://fairway.cc/images/blog//file/pujekixeki.pdfIn PDF document text
    • http://labonguyenhoang.com/img-chamthi/files/mizajaliluk.pdfIn PDF document text
    • http://indovinandoilmondo.it/themes/userfiles//files/6198386045.pdfIn PDF document text
    • http://aelma.com/sites/default/userfiles/file/naxos.pdfIn PDF document text
    • http://strandedtattoo.net/file/vukabepujefepujujik.pdfIn PDF document text
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608b8f9d1937b---retotagujedexipafipeb.pdfIn PDF document text
    • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608ecdb377999---lonemezuj.pdfIn PDF document text
    • http://bawaconstructions.com/editorData/file/xitebiwulavekotofibedoxu.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4cf7e738992dd1e7338d4ad768c8f1a3/tekanekagabamu.pdfIn PDF document text
    • https://mygoaltv.org/ipp/images/uploads/files/levex.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_off0000cb8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB8F 10920 bytes
SHA-256: fc7a04c8e353e51ddaabc9b9379994f2e19dc23f339f769b7c9d661c4c9ffd43
font_01_sfnt_off0000e4d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D5 16548 bytes
SHA-256: e04d05fe8e3541354e7469ca9e7e26c7c312a1aaf681a20c5a5ca19b8aee254a
font_02_sfnt_off00010f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F84 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1