Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df90f58af9249e7…

MALICIOUS

PDF

377.4 KB Created: 2022-01-30 09:51:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 5f6cbbedebca63cd272b64774d875114 SHA-1: f724ccecd47ae5012cec1ce705b2b5f209ca2345 SHA-256: 6df90f58af9249e72780c08b6f7579c10cb1e51bb73cf182b80ebc6f5ad87f10
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5964

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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://norin.co.za/XSRYdR1H?utm_term=billie+holiday+strange+fruit PDF link annotation
    • https://alwillislifecenter.org/ckfinder/userfiles/files/kixexeg.pdfIn PDF document text
    • https://krassimirtaskov.com/userfiles/files/bitavunajogejileg.pdfIn PDF document text
    • https://thebottombillion.com/business_school/uploads/file/jobosinadifilegogonibizo.pdfIn PDF document text
    • http://pure-chiral.com/upload/files/nesosugome.pdfIn PDF document text
    • https://enerjimakine.com/tsrm1/img/userfiles/file/26696695055.pdfIn PDF document text
    • http://catmo.fr/kcfinder/upload/files/zubuxaresizoxakik.pdfIn PDF document text
    • http://karaokejdi.com/ckfinder/core/connector/php/upload/files/wozajawegiworozupeji.pdfIn PDF document text
    • https://ibeguiristain.com/userfiles/files/kinufuxavizasid.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/cc45ced49edc4281802a5479dde57510/vuwanekojugupomila.pdfIn PDF document text
    • http://nhanvietgroup.com/demo/xay-dung-tnx/upload/files/zefumibinev.pdfIn PDF document text
    • https://hakasasi.id/userfiles/file/36865352965.pdfIn PDF document text
    • http://kwong-cheong.com/userfiles/wedam.pdfIn PDF document text
    • https://obo.olsztynek.pl/assets/includes/kcfinder/upload/files/tonogonefoj.pdfIn PDF document text
    • http://www.evisiontiendaonline.com/ckfinder/userfiles/files/soxoxo.pdfIn PDF document text
    • http://homesunshinepharma.com/upload/files/5378387234.pdfIn PDF document text
    • https://birudongker.com/contents/files/33752059525.pdfIn PDF document text
    • http://446888.top/userfiles/file/zomilunanumadabajopixev.pdfIn PDF document text
    • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/6f26df5f5e375126ab01e4c499bce649/51637155094.pdfIn PDF document text
    • http://qianlong99.org/ckfinder/userfiles/files/25932745884.pdfIn PDF document text
    • http://vigova.vn/Images_upload/files/80095334618.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/93b816e71be49b4060a1c3e5027a767b/tovexujejikewuwoxojoret.pdfIn PDF document text
    • https://dottoridegregorio.it/public/file/pulazup.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f62b51ecddf---fifujozasibokelawogevoz.pdfIn PDF document text
    • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/7864b3f6546209fa16829c8c3c1ed3c1/3329064751.pdfIn PDF document text
    • http://latexindia.com/userfiles/file/23048706859.pdfIn PDF document text
    • http://megatex-plast.ru/pub/file/rikenogolusigagimopeke.pdfIn PDF document text
    • http://honderhotel.com/UploadFiles/FCKeditor/20220113122144.pdfIn PDF document text
    • http://coffeexclusive.com/kcfinder/upload/files/53834467834.pdfIn PDF document text
    • http://newgrids.com/userfiles/file/76916720457.pdfIn PDF document text
    • http://galsabino.it/userfiles/files/98149934075.pdfIn PDF document text
    • https://queensflower.nl/clientfiles/sasubaniresewuw.pdfIn PDF document text
    • http://pazarziraat.com/userfiles/file/lakesojukeluge.pdfIn PDF document text
    • https://latework.cz/soubory/menav.pdfIn PDF document text
    • http://np-laser.com/upload_fck/file/2021-11-4/20211104013247364729.pdfIn PDF document text
    • http://elementsgogreen.com/userfiles/file/zomesirorejifotetofigisof.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_off00055293.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00055293.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55293 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0005692d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5692D 9712 bytes
SHA-256: f2dd5ab6ccc553455f1151fa2aa749f0545bfb69933b02b2575e6a7b6c33a70b
font_02_sfnt_off000589fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x589FB 20560 bytes
SHA-256: b3c3317ed96726d57ba0a17ef9cc59f83fb9ba80b2251fdc40b60cc613d5012d
font_03_sfnt_off0005bcbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCBB 10900 bytes
SHA-256: bcfa4773afe23ca4197a7133763f02de798ba221fc25da71d544c64e3e401314