Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1d25a4496e83ae…

MALICIOUS

PDF

292.9 KB Created: 2022-03-07 15:52:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 28245a5302fe8eb1e6e850dc3962f048 SHA-1: df6a890ed90fdfba51ffe50735c8fbdfe71f9349 SHA-256: 5a1d25a4496e83ae5ed1e232ac454a6d95b7256a4bc2dbe3b6068db603a82465
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6130

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://sunuf.co.za/XSRYdR1H?utm_term=cutting+edge+upper+intermediate+tests+pdf PDF link annotation
    • https://karsdanapazari.com/panel/kcfinder/upload/files/vejudofuvudigafenepogenaw.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/2cef93308e6dbcf9e548af5909883ec0/rorowazuloxagizafax.pdfIn PDF document text
    • https://anglers.mtcserver6.com/UserFiles/File/97808807991.pdfIn PDF document text
    • https://sid-amos.magie-com.de/images/file/jezevimavafojuxaxajejox.pdfIn PDF document text
    • http://beautystyln.jp/uploads_file/files/sapaw.pdfIn PDF document text
    • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/fd44fd7c5fddd4036b2d40e841366c1a/dabopojebidisimuri.pdfIn PDF document text
    • https://goldengatetaichiqigong.com/userfiles/file/kazuvosobo.pdfIn PDF document text
    • https://soalmatematik.com/userfiles/file/kinoxizataze.pdfIn PDF document text
    • http://bc-nosingtasting.com/bestanden/files/10664789101.pdfIn PDF document text
    • http://wadsoda.com/UserFiles/File/susijegakovubimekotofadew.pdfIn PDF document text
    • https://megatechhi.com/userfiles/file/25896156429.pdfIn PDF document text
    • http://secretsocietygroup.com/temp/vinney/HTML/userfiles/file/jowinokimogujurawumidi.pdfIn PDF document text
    • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fb96383cc32---majepejobenizi.pdfIn PDF document text
    • http://kochi-east-rc.com/admin/kcfinder/upload/files/28384962798.pdfIn PDF document text
    • http://naturalmis.com/userfiles/file/duzigumovavepisufegu.pdfIn PDF document text
    • http://anhuishangbiao.com/upload_fck/file/2022-3-4/20220304015254840875.pdfIn PDF document text
    • http://mastrodibaglio.it/userfiles/files/80196352864.pdfIn PDF document text
    • http://cosmosartinteriors.com/kcfinder/upload/files/xaniwobaseraxolasafejox.pdfIn PDF document text
    • https://panelshock.com/userfiles/file/lerelepovotemafimezuvo.pdfIn PDF document text
    • http://brandorbit.in/userfiles/file/30905709347.pdfIn PDF document text
    • http://transchem-tech.com/Uploadfiles/files/70852963167.pdfIn PDF document text
    • https://ltes.tw-goods.com/UserFiles/files/40631262810.pdfIn PDF document text
    • http://0225674989.kad.tw/kads/ckfinder/userfiles/files/lefobobelakexafilikix.pdfIn PDF document text
    • http://icon-studios.com/userfiles/file/fifaterozamigedafazora.pdfIn PDF document text
    • http://auxerretv.com/content/public/file/xivamoku.pdfIn PDF document text
    • http://zhengfutz.com/v15/Upload/file/202222442304178.pdfIn PDF document text
    • https://flyingfish-stay.godyouoh.com/userfiles/file/24178783748.pdfIn PDF document text
    • http://ateliergermain.org/sites/default/files/file/61292583107.pdfIn PDF document text
    • http://milkyway-vn.com/upload/files/wetevevogoteruzeluzafifu.pdfIn PDF document text
    • http://daiwavn.com/uploads/image/files/90104475689.pdfIn PDF document text
    • http://meruzhankhachatryan.com/app/webroot/files/file/60618902118.pdfIn PDF document text
    • http://otohondamientay.com/upload/files/18200779862.pdfIn PDF document text
    • http://atrsara.ir/resource/files/loresojibapezajufe.pdfIn PDF document text
    • https://fda.weblineinfosoft.com/UserFiles/files/97774209729.pdfIn PDF document text
    • http://blackswaninfotech.com/kcfinder/upload/files/gidakilokirokafalifagaw.pdfIn PDF document text
    • https://kpk.1c.ru/admin/rc/ckeditor/kcfinder/upload/files/13747171831.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_off0004212a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4212A 10808 bytes
SHA-256: f14e325c3f1555d65a1bce68297d69f51dd5e06c68c136866af811aba1e4466a
font_01_sfnt_off000439e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x439E0 19824 bytes
SHA-256: 226f63e6d711578fcffbf8616a85ace45833ff4bf81bd7efc163f726d5c52e62
font_02_sfnt_off00046c62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C62 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9