Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc89ae25d1039e8…

MALICIOUS

PDF

274.9 KB Created: 2022-01-06 16:52:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 27222b4eb11f1506148f8361ac1cee1e SHA-1: a4d1eb503ff86ceb5c3c9d0b4b5ec8cc0272d8a0 SHA-256: 1dc89ae25d1039e84ad2f51626d0cf53dcea715ae0faa42ccd58579a22bad4b5
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8531

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 http://hanarotalk.com/userfiles/file///wetipajawadotik.pdf In PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/knbnl4sqv2o4f9h98sq90sdk6j/88371817999.pdfIn PDF document text
    • https://tonmathunglan.vn/upload/files/vujareredojivaxavivirokon.pdfIn PDF document text
    • https://vildmarksjagt.dk/userfiles/file/27023718975.pdfIn PDF document text
    • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1616f231c11f6e---boxutaketepep.pdfIn PDF document text
    • http://cyclad.org/UserFiles/file/36241912793.pdfIn PDF document text
    • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/1afc52db9597c6fde7452218c31c1c15/84573979028.pdfIn PDF document text
    • http://architettodrabeni.it/userfiles/files/90548264557.pdfIn PDF document text
    • https://777mto.com/contents/files/fanonivolar.pdfIn PDF document text
    • http://abwvictory.com/uploads/files/wodowewijutikib.pdfIn PDF document text
    • http://nenkin-t.com/upload_img/ck/files/33594382396.pdfIn PDF document text
    • http://faptvmedia.com/userfiles/file/sanegevutosemu.pdfIn PDF document text
    • http://csc0512.com/userfiles/file/20211018111817_0hbsi3.pdfIn PDF document text
    • http://terrietanaka.com/library/files/81470260928.pdfIn PDF document text
    • https://lombardpruszkow.pl/local/userfiles/file/welaf.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/ab2084e24f554f3ac64405d8b07098b1/18279949730.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619a233651964---75494073151.pdfIn PDF document text
    • http://micronforgacsolo.hu/UserFiles/file/58895148254.pdfIn PDF document text
    • https://mobisteelegypt.net/userfiles/file/ruredadonuwugalado.pdfIn PDF document text
    • https://artemishosp-em.tw/uploads/files/202111280104058716.pdfIn PDF document text
    • http://artospace.com/pics/file/sazawoto.pdfIn PDF document text
    • https://hiddencliff.kr/FileData/ckfinder/files/20211010_56CAD425FB11461E.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/D9plVHj2VOU/uplcv?utm_term=java+swing+tutorialspoint+pdfPDF 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_off0003e31b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E31B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003f9bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F9BF 10784 bytes
SHA-256: 5c8a60120e1f0c7e9b21a2cd6c667078a9b56f296ada5019d0f2c79933dcb3a7
font_02_sfnt_off0004128d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4128D 16540 bytes
SHA-256: 6377040954fba55cb06eb1b1cda1ce288068160e367d125e0fded614f3d67779