Malicious PDF — malware analysis report

Static analysis result for SHA-256 de44a5ec44f335c9…

MALICIOUS

PDF

469.4 KB Created: 2022-02-03 02:09:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 254f019ef4d3c4614e7caeb8759cb6a9 SHA-1: 324e3f87a3ef83f85220fe5de77d1232f45ec4e3 SHA-256: de44a5ec44f335c9653ca24bf4cfffdb08338727482d75d78745452f442aeb25
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4741

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://colod.co.za/XSRYdR1H?utm_term=bachelor+of+information+technology+syllabus+in+australia PDF link annotation
    • http://ats-dz.com/userfiles/file/41955403000.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/c4d65ea56023ca56d703ea154d77739d/gasibidagirinefukubesifu.pdfIn PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/b91268f492a176a91af9d9aa81a2f32f/96399334865.pdfIn PDF document text
    • https://fancybox.pamlskovnik.cz/ckfinder/userfiles/files/nedalatimaramex.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/xizusivufota.pdfIn PDF document text
    • http://tfh-filter.hu/_user/file/lavajejugurix.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/161eb0880078a2---lujuronesimogu.pdfIn PDF document text
    • http://7m-shop.com/userfiles/file/bulutexi.pdfIn PDF document text
    • http://probeg2000.ru/files/userfiles/files/27061763520.pdfIn PDF document text
    • http://schokofontaene.de/idata/56239848913.pdfIn PDF document text
    • http://tuanayapim.com/rsm/files/tegezu.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1619fbd01df46c---malelevowipimukafuxevoza.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e6001b93784---5100839.pdfIn PDF document text
    • https://gestionarival.com/userfiles/file/123438443.pdfIn PDF document text
    • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16123cda9277dd---matotunusinixasegade.pdfIn PDF document text
    • http://bc-nosingtasting.com/bestanden/files/92671796611.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1611aa768c9163---wubaremanesatem.pdfIn PDF document text
    • http://szentdorottyapatika.hu/files/98814655128.pdfIn PDF document text
    • http://longbeach.ilovepokebar.com/uploads/files/walogejewodopoxex.pdfIn PDF document text
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/0ss9jcri1koi22a01q0jkc4p82/98731595604.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612bdea6b4260---tezukof.pdfIn PDF document text
    • http://kaus21.com/userData/board/file/solotosesipumow.pdfIn PDF document text
    • http://kdesignuk.com/userfiles/files/pukezalelarolexinugadoji.pdfIn PDF document text
    • https://wheelmartthailand.com/image/upload/File/naxovujeseligofanuvakezed.pdfIn PDF document text
    • https://ibrahimkoc.com/images/Media/files/52615866550.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_off0006e9b4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006e9b4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006e9b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9B4 16596 bytes
SHA-256: 32a4f1028f759e940936c81d46d9db05f049def28f4381328b34870e17be5d8c
font_01_sfnt_off000714dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x714DC 11192 bytes
SHA-256: f74865fdf357fd7d8f0c33e1a2e801acb71fc58a83ff1b4b1f4b3282010423b3
font_02_sfnt_off00072ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72EF0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9