Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8d9b9f3e95432a…

MALICIOUS

PDF

315.8 KB Created: 2022-02-28 20:57:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 813be1a2d80d1e0f959b44933a204768 SHA-1: dca38dcf113c345825e2a4911a0291e311e18ec7 SHA-256: aa8d9b9f3e95432a99aa3c19fe944e5c7255718d24272bc3196d983a3c45f15a
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7061

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
  • 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.
  • 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://lovig.co.za/XSRYdR1H?utm_term=cervical+cancer+screening+guidelines+canada PDF link annotation
    • http://shuswapfireandsafety.com/userfiles/file/99584615974.pdfIn PDF document text
    • http://savvyroyalties.com/userfiles/file/damereg.pdfIn PDF document text
    • https://dreesmann-foto.de/userfiles/file/54887888184.pdfIn PDF document text
    • https://mdteam.se/ckfinder/userfiles/files/60501994034.pdfIn PDF document text
    • http://doggystylzgrooming.com/admin/photos/file/65060237606.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16203059680b3c---zupugobefuwefosi.pdfIn PDF document text
    • https://koparieshorvathbusz.hu/files/file/fezesojabuba.pdfIn PDF document text
    • https://habibitours.org/ckfinder/userfiles/files/rusinufeziwa.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe277f144ae---45964559463.pdfIn PDF document text
    • https://dichvuhappyhouse.com/upload/files/lanobalafufiluxexesilira.pdfIn PDF document text
    • http://unii-dz.org/app/webroot/js/kcfinder/upload/files/gupamefati.pdfIn PDF document text
    • https://cerfi.amy-world.net/upload/file/wabiwukiletuw.pdfIn PDF document text
    • http://www.meditt.com/wp-content/plugins/super-forms/uploads/php/files/64odgo48o1019ievjsa7v9bnft/65287010602.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fcb988c845c---vuvubivugutaxonusejarimel.pdfIn PDF document text
    • http://extrastyle.ee/ckfinder/userfiles/files/saduxuteze.pdfIn PDF document text
    • https://theurbanthinktank.com/files/fakegubiwisu.pdfIn PDF document text
    • http://tauben-buchmeier.de/ablage/userfiles/files/61151825671.pdfIn PDF document text
    • http://kef.org.pk/kcfinder/upload/files/vazak.pdfIn PDF document text
    • http://ccshecea.org/upload/files/34546290819.pdfIn PDF document text
    • http://goldmustang.com/files/files/5844512797.pdfIn PDF document text
    • http://nataliashishkina.com/userfiles/file/75307501915.pdfIn PDF document text
    • http://nensi.si/upload/file/gebuxaf.pdfIn PDF document text
    • http://bausite.ru/userfiles/files/levukefugejeduvavezetiker.pdfIn PDF document text
    • http://ahjygjg.com/upload_fck/file/2022-2-20/20220220135541336019.pdfIn PDF document text
    • http://street.bpv.su/content/files/files/piwodoworoxuporavej.pdfIn PDF document text
    • http://daydeothe.vn/rich_editor/file/susalumejufixesijexiwutam.pdfIn PDF document text
    • https://vietnam-pump.com/userfiles/file/makozerovadewikote.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_off0004808e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4808E 10524 bytes
SHA-256: 2dc83370bd80735370ecf5623d1f90afc63884c0431b2c50292a64a98e6afecd
font_01_sfnt_off0004986a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4986A 18388 bytes
SHA-256: 349c27eae97420f96e6478c8831fbfe2c0e821fc75f778a3a5b0453fcee9ec54
font_02_sfnt_off0004c8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C8B6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9