Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b22741e1ca059f…

MALICIOUS

PDF

198.0 KB Created: 2022-03-26 12:12:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 27657ea2adac5085c0baf7f03fe8b619 SHA-1: 41b97ad9688124e69ed3ee6a80f457903d16b372 SHA-256: a8b22741e1ca059f5c88cd22555d4f5b2dffaf147a94b7e64c03828253948edb
241 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7780

Heuristics 8

  • 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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 http://asmakeup.com/js/ckfinder/userfiles/files/lovuzadawaxasizejovupa.pdf In PDF document text
    • https://alternatifhirdavat.com/upload/ckfinder/files/makidumuguwut.pdfIn PDF document text
    • https://tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/bokesate.pdfIn PDF document text
    • http://cameradungphat.com/uploads/files/95976468225.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/16200121d7c7c7---bulidimovesu.pdfIn PDF document text
    • http://www.nomorcantikjoss.com/file/47042322838.pdfIn PDF document text
    • http://universalgroupautos.com/files/others/motekoluvavubax.pdfIn PDF document text
    • https://citronixdeflection.com/nbloom/fckuploads/file/bokazoboxuwaguwiwepaxas.pdfIn PDF document text
    • http://t-p-fortune.com/userfiles/file/lunotexitebazamofazewukaw.pdfIn PDF document text
    • http://kondicionery-himki.ru/upload_picture/file/kefeb.pdfIn PDF document text
    • http://cpghollywood.com/userfiles/files/95130867028.pdfIn PDF document text
    • http://koronavirus.lenti.hu/feltoltes/files/vimoxeloxakufonubetanebo.pdfIn PDF document text
    • http://www.aippc.net/kcfinder/upload/files/figigasigukewojotu.pdfIn PDF document text
    • http://tartak-monis.pl/tartak/images/file/47000430855.pdfIn PDF document text
    • http://waheedullahauto.ae/admin/kcfinder/upload/files/nesivonapibodosuvu.pdfIn PDF document text
    • http://ekonomiyonetimivepazararastirmalarikongresi.reklam.cc/FCKeditor/editor/filemanager/connectors/userfiles/file/raxodag.pdfIn PDF document text
    • http://japhina.com/upload/file/4793508960.pdfIn PDF document text
    • http://olddieselparts.com/ckfinder/userfiles/files/bufijuxirexedorunibug.pdfIn PDF document text
    • http://pinzimoniofiumicino.eu/userfiles/files/81236066228.pdfIn PDF document text
    • http://oldtimerclub-thueringerberg.at/images/file/muduwigunigigabogitelesu.pdfIn PDF document text
    • https://matkinhantai.com/luutru/files/nobubedebebolanetalawen.pdfIn PDF document text
    • http://waheedullahauto.ae/admin/kcfinder/upload/files/timabuf.pdfIn PDF document text
    • http://progettogeometra.it/userfiles/files/bagalaf.pdfIn PDF document text
    • https://www.fondazionepolis.it/blog/ckeditor_fullcolor/kcfinder/upload/files/28055742896.pdfIn PDF document text
    • http://rkenterprisesonline.com/FCKeditor/file/firurinodasajenifuk.pdfIn PDF document text
    • http://fluitec.fr/ressource/site-image/files/wivaju.pdfIn PDF document text
    • http://xn--b1adadl3aoabascoo.xn--p1ai/upload/files/98827126026.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16206018687a96---kamevebosaxalepa.pdfIn PDF document text
    • http://kochi-east-rc.com/admin/kcfinder/upload/files/gezuwefivemi.pdfIn PDF document text
    • http://ladna.pl/user_images/file/besomiradofipufasis.pdfIn PDF document text
    • https://loyalangkorapartment.com/userfiles/file/bogofefovonasev.pdfIn PDF document text
    • https://www.koreayokogawa.com/ckfinder/userfiles/files/78360467462.pdfIn PDF document text
    • https://nocleginaplus.pl/uploads/userfiles/files/22096209484.pdfIn PDF document text
    • http://nellion.ru/upload/files/wiwasinaxiwe.pdfIn PDF document text
    • http://karmakonnect.org/DrumiBhatt/karmakonnect.org/Final/ckeditorimage/files/6216374384.pdfIn PDF document text
    • http://old.muzeum-ak.pl/newsysn/kcfinder/upload/files/17375321572.pdfIn PDF document text
    • http://ave-france.com/pics/files/forixuzot.pdfIn PDF document text
    • http://scro.ru/pic/file/50754985116.pdfIn PDF document text
    • http://www.anespo.pt/sgc/Assets/Plugins/CKEditor/kcfinder/Uploads/files/gogosedeguxovav.pdfIn PDF document text
    • https://gyogytorna-vac.hu/admin/kcfinder/upload/files/wagej.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=golang+template+slice+joinPDF 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_off0002a72c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002a72c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002a72c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A72C 18560 bytes
SHA-256: 350a09f0dbbc64a2b27b911e431a2f3d1dbf1d340e6636f60ab2a5fd572d867e
font_01_sfnt_off0002d867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D867 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002ef87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF87 10788 bytes
SHA-256: 3666600887d31763ebbf141415d2e776cd765d0cbb440a04a27c86e11bca93ca