Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b8090d13595f09…

MALICIOUS

PDF

191.1 KB Created: 2022-02-02 12:22:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 6a8282312da052d4af394dbe602c5e0d SHA-1: 94f27469bdc769d5cb516d06f1a2d0d73d0df048 SHA-256: a8b8090d13595f09bd5d4bd2b7a055610d20083d72cbc0c50b85929d321395f4
181 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8425

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.
  • 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.
  • 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.
  • 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://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161eb4ab17db7b---83448303616.pdf In PDF document text
    • https://b2b-intelligence.it/uploads/file/wuzizuvewizakufedojuvomox.pdfIn PDF document text
    • https://alwillislifecenter.org/ckfinder/userfiles/files/simisurenuwufaz.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/rexamotijaf.pdfIn PDF document text
    • https://gagasanriau.com/a450d92cb6be01b3b3669c18bfca7901/kcfinder/upload/files/gukotujenuwikok.pdfIn PDF document text
    • https://jecoexports.com/ckfinder/userfiles/files/39559658368.pdfIn PDF document text
    • https://www.grdr.org/paidel/ckfinder/userfiles/files/83504125690.pdfIn PDF document text
    • http://geraldinekilkelly.ie/kibuwipupigavel.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16148fedd7e6f9---wupegapunaxezurukef.pdfIn PDF document text
    • http://studiopignotti.it/userfiles/files/mewegivaxoroboxofukirojir.pdfIn PDF document text
    • http://iranjobex.com/cache/fck_files/file/lufuxorufases.pdfIn PDF document text
    • http://saharun.org/uploads/ckfinder/userfiles/files/12356654827.pdfIn PDF document text
    • http://www.jatekkalmesevel.hu/admin/ckeditor/kcfinder/upload/files/49055421705.pdfIn PDF document text
    • https://flour.co.uk/ckfinder/userfiles/files/sudelenogasawopubal.pdfIn PDF document text
    • http://1137.jp/app/webroot/js/ckfinder/userfiles/files/turujibugoke.pdfIn PDF document text
    • https://quangcaowebsitecomvn.xemlaco.com/uploads/files/tunogoka.pdfIn PDF document text
    • http://chalappuram.com/userfiles/file/gotozorigomuwerog.pdfIn PDF document text
    • http://chs.yuanjen.com/ckfinder/userfiles/files/lipokawuruwegerize.pdfIn PDF document text
    • https://petroservice-eg.com/userfiles/file/lutogubil.pdfIn PDF document text
    • http://limuzine.md/userfiles/file/ruzifotazefesuxusafugov.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1610133551d918---leruvonipitagepuxuvuged.pdfIn PDF document text
    • https://tagoproperties.com/ckfinder/userfiles/files/6518896269.pdfIn PDF document text
    • http://gordostcrista.ru/userfiles/file/97723937252.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16174ebf240039---xonuj.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160f3b5585c88c---kidetomesaja.pdfIn PDF document text
    • https://pharma-tools.eu/galeria/file/roperovezobas.pdfIn PDF document text
    • http://phaptangpgvn.net/app/webroot/upload/files/rexorigerikoga.pdfIn PDF document text
    • http://nc-israel.ru/upload/files/50731586991.pdfIn PDF document text
    • https://hotelmitrutarija.com/uploaded/files/7998149772.pdfIn PDF document text
    • https://www.chablis-gautherin.com/ckfinder/userfiles/files/77756090276.pdfIn PDF document text
    • http://hkbroadwin.com/userfiles/nilipuruganivukuvowoduti.pdfIn PDF document text
    • http://batteryzone.pk/assets/kcfinder/upload/files/pidogenotupaj.pdfIn PDF document text
    • http://cyklo-sport-servis.cz/UserFiles/File/17244846991.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=hager+bb1279+electric+hinge+templatePDF 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_off00029288.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00029288.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00029288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29288 16352 bytes
SHA-256: 31b7f449d40e84426393f5af0f2b08283e571a85866a53e6d2ec9d41f1b18940
font_01_sfnt_off0002bcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCFC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002d41c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D41C 11056 bytes
SHA-256: 929a91d7750743ebeed721f3f3ef531a3ddf916a4693ef523174efa12e3e6fcb