Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa814e22d916a8fd…

MALICIOUS

PDF

184.5 KB Created: 2022-03-18 17:52:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: d9b83409c62f3ebec9434c83f96b27d4 SHA-1: 65b08c27b25bb829b17a3a01f93e7bfc21ac40b8 SHA-256: aa814e22d916a8fdfd33b301ff84f4b1b1a69c6b413ce4949059c761348e5fb7
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9479

Heuristics 7

  • 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 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=ryanair+app+not+ing PDF link annotation
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1620fecf66ea2b---13623611728.pdfIn PDF document text
    • https://thailonghoang.vn/upload/files/buragufegipa.pdfIn PDF document text
    • http://85560891.com/upfolder/e/files/20220314140859.pdfIn PDF document text
    • https://ud-hobby.com/images/Upload/file/kekivuruligenoluwa.pdfIn PDF document text
    • http://4chan.ro/UserFiles/file/49039163583.pdfIn PDF document text
    • http://bappeda-jepara.org/app/webroot/js/kcfinder/upload/files/74478721700.pdfIn PDF document text
    • http://poorun.net/userData/ebizro_board/file/xefadidaso.pdfIn PDF document text
    • http://pbwi.com.pl/admin/kcfinder/upload/files/2547660051.pdfIn PDF document text
    • http://havefuntogether.com/image/upload/File/kutifoxab.pdfIn PDF document text
    • http://kondicionery-lobnya.ru/upload_picture/file/21395661837.pdfIn PDF document text
    • https://birudongker.com/contents/files/gunigenanemitix.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/f88d9f9d628cebafe139e7afbecd1bc6/bizajuzemi.pdfIn PDF document text
    • http://afgesproken.nl/kcfinder/upload/files/77892619867.pdfIn PDF document text
    • http://bisenzia.it/userfiles/files/vuvadopuvobuguso.pdfIn PDF document text
    • http://www.winnicajanowice.pl/kcfinder/upload/files/68782339929.pdfIn PDF document text
    • http://boxerdapolenta.com/cmsimple/images/file/gobafifaxasig.pdfIn PDF document text
    • https://degardo.hollandpazsit.hu/ckfinder/userfiles/files/43440835416.pdfIn PDF document text
    • http://spgcplb.com/ckeditor/kcfinder/upload/files/bawebufuwafujarab.pdfIn PDF document text
    • https://dotcomtravelegypt.com/userfiles/files/92135277953.pdfIn PDF document text
    • http://ulv-fogger.ru/d/files/darerenanazol.pdfIn PDF document text
    • https://linhancomvn.xelinhan.vn/userfiles/file/jivuzelewukogelup.pdfIn PDF document text
    • http://www.tecs4.com/intranet/ckfinder/userfiles/files/matasezifuwivojepagudit.pdfIn PDF document text
    • https://abm-network.com/kcfinder/upload/files/rofelimijapipimixukel.pdfIn PDF document text
    • http://www.iharoskezmuvesek.hu/ckeditor/kcfinder/upload/files/napajuwikefafarapuwivub.pdfIn PDF document text
    • http://bioengenharia.com.br/public/libs/kcfinder/upload/files/zafakalugej.pdfIn PDF document text
    • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1620323cf78ebd---linavazosiludazewijarud.pdfIn PDF document text
    • https://jjpremiers.com/files/matamuwoxitinowoxarad.pdfIn PDF document text
    • http://princeworldwide.com/multimedia/userfiles/file/gufugokegidami.pdfIn PDF document text
    • http://tsuyopillar.com/assets/kcfinder/upload/files/57799785234.pdfIn PDF document text
    • http://oilmachineydy.com/d/files/fovufosofavalaveju.pdfIn PDF document text
    • http://beibarys.com/app/webroot/js/kcfinder/upload/files/nitebebilokupijozifele.pdfIn PDF document text
    • http://wflyyxzrgs.com/uploadfile/file/6c4d07c0ed852b4cea60f47401813adf.pdfIn PDF document text
    • http://tvojashkola.ru/img/upload/files/69501757907.pdfIn PDF document text
    • https://study-abroad-travel.com/ckfinder/userfiles/file/gugezaxawojewoxaxekexi.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1621d8f935c1d1---mavigosumowili.pdfIn PDF document text
    • http://drtamerturan.com/file/japexakuzen.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 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_off000273d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x273D6 10240 bytes
SHA-256: e62b4f8c8b08bfcdfb61e74e9c450e8a97c3b03033802b00ea5bbed8d2438c7d
font_01_sfnt_off00028af6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28AF6 18256 bytes
SHA-256: 7cabc678298767374c60c02b439b6725a3019b8f9f873846ff50fc463c600409
font_02_sfnt_off0002ba69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA69 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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