Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b4aef3b8ee34f4…

MALICIOUS

PDF

392.2 KB Created: 2022-03-14 03:07:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: a4500506f9bc0519e60b603638d5db42 SHA-1: 0324c6da7bcb302d27edca33874809526d328617 SHA-256: a8b4aef3b8ee34f481dd8df08247488f125b48ddf9873d9bc8185aee36717481
161 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7954

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 advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=bayonetta+2+switch++size PDF link annotation
    • https://www.reptrics.com/kcfinder/upload/files/4310089048.pdfIn PDF document text
    • https://hungarogun.hu/feltoltes/files/dapajisakitozotafufod.pdfIn PDF document text
    • https://biurodluga.pl/files/files/votajonozako.pdfIn PDF document text
    • http://thuaphatlailongthanh.com/upload/contentFile/minhchau/file/43736087672.pdfIn PDF document text
    • https://urudolfa.sk/upload/files/87358731757.pdfIn PDF document text
    • http://gld-lining.com/user_img/files/74909633916.pdfIn PDF document text
    • http://ff-engineering.com/userfiles/files/47685329138.pdfIn PDF document text
    • https://magnanelli.com/userfiles/file/69166866103.pdfIn PDF document text
    • https://ostrichpharmaceuticals.com/userfiles/file/9850571971.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/files/vonazop.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1622e69da7cfc0---voxidedelotuv.pdfIn PDF document text
    • http://stowarzyszeniemalyksiaze.eu/img/upload/files/mulopesir.pdfIn PDF document text
    • https://www.synergyom.com/kcfinder/upload/files/devovawivox.pdfIn PDF document text
    • http://studiodelcorso.eu/userfiles/files/80035507967.pdfIn PDF document text
    • http://thesnowmanicecream.com/ckfinder/userfiles/files/72429907617.pdfIn PDF document text
    • https://dioss.eu/files/ckfiles/file/1039342442.pdfIn PDF document text
    • https://aarhuskortet.dk/images/file/83193653822.pdfIn PDF document text
    • http://taiwan-tsai.com/upload/files/51050550940.pdfIn PDF document text
    • https://hw-power.com/uploads/ckfiles/files/62229203cf135.pdfIn PDF document text
    • http://heonlab.hu/uploads/files/18606566692.pdfIn PDF document text
    • https://jung.su/kcfinder/upload/files/12469494495.pdfIn PDF document text
    • http://amis-simserhof.fr/kcfinder/upload/files/87281804466.pdfIn PDF document text
    • https://universitecentrale.net/uploads/FCK_files/file/83742331644.pdfIn PDF document text
    • https://www.v-investor.ru/kcfinder/upload/files/vuwujutewepixen.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1620f1c71824dd---ledimegumininif.pdfIn PDF document text
    • http://www.bash.cl/media/file/vodazepika.pdfIn PDF document text
    • http://xn----htbccnijgu6o.xn--p1ai/kcfinder/upload/files/mamasenepipina.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 (font_00_sfnt_off0005b0d6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005b0d6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b0d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0D6 10616 bytes
SHA-256: 87dd0b5249fe79b2ebd00e5153ee00dbabb1c0100715efce3fe7b706210387d3
font_01_sfnt_off0005c94c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C94C 18876 bytes
SHA-256: 9598fc18b284432fa0b28bdbc06903b16b5e6bf5472d19a7bc6a84d55709754f
font_02_sfnt_off0005faec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAEC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9