Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a08f906e1cb559…

MALICIOUS

PDF

463.7 KB Created: 2022-03-12 11:01:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 3c54447ec8fd8df34eda9b4bf73cead8 SHA-1: 3be3488ff42b164ca57b89f6319427f770b1fd67 SHA-256: 18a08f906e1cb5598dfee29210bca4be98ec0329bd1d433a14c369b5e8817979
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4057

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://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/162295a69b78c1---kesabonerakewelugudi.pdf In PDF document text
    • https://hyper.oneewe.com/_img/files/59276269308.pdfIn PDF document text
    • https://abcdev.opusviewdev.com/app/webroot/js/image/files/58244176819.pdfIn PDF document text
    • https://z87992961.com/upload/files/20220206015803.pdfIn PDF document text
    • https://aravalivssamiti.org/admin/assets/ckeditor/kcfinder/upload/files/18665883495.pdfIn PDF document text
    • https://mariellatriolo.it/public/file/66786893428.pdfIn PDF document text
    • https://fcefrance.com/kcfinder/upload/files/93595396768.pdfIn PDF document text
    • https://silverstonedevelopments.com/ckfinder/userfiles/files/88378451984.pdfIn PDF document text
    • http://njbeihang.com/uploadfile/file///2022022312085345.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621b220027bd7---75635339822.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/5j14gv1ur8atr81cqos97nt6l3/jowov.pdfIn PDF document text
    • https://basealimentare.it/webroot/files/fck_uploads/File/vilefiwozisip.pdfIn PDF document text
    • https://hyper.vessty.com/_img/files/lexebimubimufaro.pdfIn PDF document text
    • http://cyklokomfort.cz/files/kcupload/files/76125971234.pdfIn PDF document text
    • http://kutyakozmetikustanfolyam.hu/kcfinder/upload/files/ratigadumu.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/fb8655bcec3ac1b7d8ff07da127761ca/99445591543.pdfIn PDF document text
    • https://crmtristan.talenzsoftware.fr/upload/files/nikezidujagifabegaretulow.pdfIn PDF document text
    • http://muszosz.hu/_user/file/sevuzizogon.pdfIn PDF document text
    • https://www.3zslitomysl.cz/admin/editor/kcfinder/upload/files/gosuzotavonujogelujebitoj.pdfIn PDF document text
    • https://maintogelonline2.com/contents/files/towikamitovexafelebid.pdfIn PDF document text
    • https://bishopsalamatkhokhar-org.bskm.org/userfiles/file/nobujabokapujavuj.pdfIn PDF document text
    • https://toyotacri.com/userfiles/files/wivexotum.pdfIn PDF document text
    • http://pietroquatriniarchitetto.eu/userfiles/files/12229719623.pdfIn PDF document text
    • http://itineraire-consulting.com/ckfinder/userfiles/files/guwikadajaxevulijegejego.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/d571eba78a2b2ecf7bbae30053bde939/nolowirizanimelabal.pdfIn PDF document text
    • http://henanshuangxin.com/d/files/73940461387.pdfIn PDF document text
    • http://cetis156.neutronds.com/assets/js/ckfinder/userfiles/files/95274793156.pdfIn PDF document text
    • http://iks.premoweb2.at/userfiles/file/kelobe.pdfIn PDF document text
    • http://viaecommerce.com.br/kcfinder/upload/files/97095659401.pdfIn PDF document text
    • https://cabsfromheathrow.com/userfiles/file/39099583221.pdfIn PDF document text
    • http://todaystravel.com.tn/kcfinder/upload/files/vozinuleje.pdfIn PDF document text
    • https://onlinendttraining.net/files/54829617791.pdfIn PDF document text
    • http://pitchdecor-construction.com/user_img/files/23208874236.pdfIn PDF document text
    • https://byocamacho.com/ckfinder/userfiles/files/jigaborologi.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/c8dd669e748eb33b95a00404959805e9/36276153238.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f9723272198---3007929419.pdfIn PDF document text
    • http://galluccifaibano.it/userfiles/file/76701980458.pdfIn PDF document text
    • http://hagelkonzept.de/userfiles/file/xumilevedixuge.pdfIn PDF document text
    • https://softwebstar.com/shop/userfiles/file/65098333096.pdfIn PDF document text
    • https://dienlanhhonganh.com/images/pic/file/16604771047.pdfIn PDF document text
    • http://www.bluefashion.cz/ckfinder/userfiles/files/guxix.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=answers+of+chapter+motion+class+9PDF link annotation
    • http://www.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/sineradezijepedaja.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_off0006cce6.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006cce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CCE6 18544 bytes
SHA-256: e2c92bd0572cea414a75fe8d4239e41b3064bd214a11ef2dc336d08545955952
font_01_sfnt_off0006fd8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD8F 10980 bytes
SHA-256: 2058ad69d63bd69cb89939a47ed36cb0cf86c92b042efdc7e4ba753435ff1e14
font_02_sfnt_off000716fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716FA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9