Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f5e44b7f980aa7…

MALICIOUS

PDF

274.1 KB Created: 2022-02-02 20:20:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 36b65857aee2e46ee15c776686b2121d SHA-1: 0e49e60fe2d8985337c1dca63971945689592ec3 SHA-256: a4f5e44b7f980aa719fd8528f889197fdc9db9531573ddcaf5d70c790eb37f74
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9082

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=adobe+illustrator+cs6+pdf+myanmar PDF link annotation
    • https://ottopianos.nl/files/metiw.pdfIn PDF document text
    • https://bocrangsuthammy.vn/upload/files/nifowaxonid.pdfIn PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/434f92bde85929c030b7f1757e52c149/balarafewapemevobo.pdfIn PDF document text
    • https://jgranit.pl/userfiles/file/38591568127.pdfIn PDF document text
    • http://smartvoicecom.com/userfiles/237433122.pdfIn PDF document text
    • https://ehilteknik.com/uploads/files/88044137872.pdfIn PDF document text
    • http://citty.org/images/uploads/file/romusopu.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/649d565b6dd921567b173cb4f52da8e6/jutelofi.pdfIn PDF document text
    • http://philboyd.com/41269826234.pdfIn PDF document text
    • http://honghuibio.com/d/files/farotamet.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151d8e54ca5f---tuwekesu.pdfIn PDF document text
    • https://kameramuzesi.com/upload/files/pisew.pdfIn PDF document text
    • http://tiramisu-o.com/yamituki-n/uploads/files/komeladilodegoxabebuderaf.pdfIn PDF document text
    • http://computerdoki.hu/user/file/kafegakefuvewaredemid.pdfIn PDF document text
    • https://ostrichtours.com/ckfinder/userfiles/files/bofaxirenala.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/gt53h860u40364hk9v6b3cbts3/deborivunetemepeza.pdfIn PDF document text
    • http://abwingsmd.com/uploads/files/38980738677.pdfIn PDF document text
    • http://cpspcb.com/uploads/files/kosodobu.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/68892bcc14894ee449ecf036e0427794/1780257578.pdfIn PDF document text
    • http://obrienbuilders.com/userfiles/file/rabemitedironoretuz.pdfIn PDF document text
    • https://sunrise-photon.com/upfiles/editor/files/rigudezezedurezabipanuv.pdfIn PDF document text
    • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/225e4179c51e6f00d14a5a9d1be85c30/jeledafemo.pdfIn PDF document text
    • http://cuatro-pr.org/sites/default/files/file/29634719113.pdfIn PDF document text
    • http://laureysnv.be/uploads/files/2745596125.pdfIn PDF document text
    • https://espiber.cl/images/uploadedimages/file/50758604683.pdfIn PDF document text
    • http://tischlerei-schlusche.de/sites/default/files/file/56472415154.pdfIn PDF document text
    • http://zsmnowakowski.pl/userfiles/file/92915052713.pdfIn PDF document text
    • http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/vajumenenagamenud.pdfIn PDF document text
    • https://soechi.net/userfiles/file/paberiza.pdfIn PDF document text
    • http://uralcomservis.ru/crn_fls/crn_files/58949050079.pdfIn PDF document text
    • http://domuran.pl/files/file/dobapoxow.pdfIn PDF document text
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e2deafbb41b---raseso.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 extracted file (stream_006_off0003e5f9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_006_off0003e5f9.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0003e5f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E5F9 32512 bytes
SHA-256: 7c72911dc365b97ad2ca4eb0bdc34fe7f55fc166ce564c9fce3484f57e665d0c
font_00_sfnt_off000398ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x398FF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003b01a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B01A 21448 bytes
SHA-256: d32c0a29a417590b4638fee8a74b378baa426f480524110a785223f9165daa9b
font_03_sfnt_off00041edf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41EDF 11284 bytes
SHA-256: 5456823e702a7415d2657072c6708256c092993f6529c3084ddfac11ff8da53d