Malicious PDF — malware analysis report

Static analysis result for SHA-256 87515dfa7409ebeb…

MALICIOUS

PDF

306.4 KB Created: 2022-03-27 22:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: ddf92d1ac3463f82b5f6f3c6c0d7ccd2 SHA-1: 7cfd5e5bfc8c17869ebf7c49e933f6d0499f8bda SHA-256: 87515dfa7409ebebd363f8aaa2d89cfb78be088c95332036eee0bcbabd70410c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7177

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bebaldebaran.eu/userfiles/files/56839925702.pdf In PDF document text
    • https://ekselantechnology.solutions/ckfinder/userfiles/files/5928055289.pdfIn PDF document text
    • https://xn--80ag1a2a.xn--p1ai/files/file/movini.pdfIn PDF document text
    • http://grupophi.es/uploads/files/fitulowitodegulefizewe.pdfIn PDF document text
    • http://www.anpamedical.com/kcfinder/upload/files/66728697487.pdfIn PDF document text
    • http://2safe4u.cz/UserFiles/File/31561940922.pdfIn PDF document text
    • http://orem.mn/uploads/files/98464052986.pdfIn PDF document text
    • https://angkaganjil.com/contents/files/memop.pdfIn PDF document text
    • https://viadagio.be/userfiles/file/ruxuvuzanimokoboges.pdfIn PDF document text
    • http://www.specemc.ru/upload/files/16291479168.pdfIn PDF document text
    • http://clubmaniacr.com/campannas/file/dameje.pdfIn PDF document text
    • https://www.varoslod.hu/kcfinder/upload/files/posomuvedosafofuvuvuxela.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/a699i9na90ff4m7ugs30o8s6g5/75597176747.pdfIn PDF document text
    • http://sladkiy-ostrov.ru/userfiles/files/rufulozutorer.pdfIn PDF document text
    • http://fcgo.tw/uploadpic/files/kuzerusozadiriwusoje.pdfIn PDF document text
    • http://visit-pune.com/userfiles/file/39553961498.pdfIn PDF document text
    • http://moonyart.ru/admin/ckeditor/kcfinder/upload/files/23731295449.pdfIn PDF document text
    • http://citlak.com/admin/UserFiles/file/pixifafaxekedefoxemado.pdfIn PDF document text
    • http://investbuild.ru/var/upload/file/milefebudavemigosiwapebub.pdfIn PDF document text
    • http://embauchecadre.com/kcfinder/upload/files/pefozuruzobisugugode.pdfIn PDF document text
    • https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/fc5be41d6506f3406ca2e04d5786b677/xajavawufakoresipigu.pdfIn PDF document text
    • http://serting.eu/userfiles/files/27258521222.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/23c2b784b4d7cfdd20952c285187a2ac/46678295837.pdfIn PDF document text
    • https://personnelstrategies.net/userfiles/file/mekebipamawafo.pdfIn PDF document text
    • https://peltonfell.org.uk/ckfinder/userfiles/files/13253577075.pdfIn PDF document text
    • http://hajostanfolyam.hu/admin/kcfinder/upload/files/kabanir.pdfIn PDF document text
    • http://szcftz.com/upload/gujexikusevapofuzeweg.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=tajine+tefal+recettePDF 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 extracted file (font_00_sfnt_off00045c81.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00045c81.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045c81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45C81 18532 bytes
SHA-256: 4b0d0096d59f2110f066f438056a190c01091fadc4276063da58464812be2193
font_01_sfnt_off00048c85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48C85 10132 bytes
SHA-256: 3776503a156a7f216838830cca5a967cab1d2c4dcd7c9c1e028b643ac25eef9c
font_02_sfnt_off0004a332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A332 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9