Malicious PDF — malware analysis report

Static analysis result for SHA-256 af27aca3379c12c1…

MALICIOUS

PDF

365.0 KB Created: 2022-03-28 12:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 1787a87d3a18f55124c79aaa34aeacd1 SHA-1: 2d9bdbd5ebc614f7d319de2bb1d836c6e9ef215f SHA-256: af27aca3379c12c1be75e94a20c99809fc0e273b8d52d45d3f8facc3de25f3bb
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

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
  • 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=absinthe+european+union PDF link annotation
    • http://lab4050.com/upload/editor/file/nibil.pdfIn PDF document text
    • http://asiancfea.org/userfiles/file/vasovikidomivum.pdfIn PDF document text
    • http://databaze.glaukom.cz/upload/files/43945403353.pdfIn PDF document text
    • http://ersatzmonitor.de/userfiles/file/34434702434.pdfIn PDF document text
    • https://g-tet.com/uploadedfiles/file/94933395842.pdfIn PDF document text
    • https://akemi.ro/hirek/file/41343376591.pdfIn PDF document text
    • http://drcleancenter.com/uploads/files/202203190746404619.pdfIn PDF document text
    • http://funagamex.vn/PhuongNamGroup/userfiles/files/kejezofo.pdfIn PDF document text
    • https://study-abroad-travel.com/ckfinder/userfiles/file/wakunajenizev.pdfIn PDF document text
    • http://ximangsongthao.com/app/webroot/uploads/files/xesibilepofejeji.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/162062b6d299d0---64988923091.pdfIn PDF document text
    • https://northwoodsinnsuites.com/nbloom/fckuploads/file/33707129100.pdfIn PDF document text
    • http://amicalelaique-guyancourt.fr/ckfinder/userfiles/files/wolatevetarixuwajuwomax.pdfIn PDF document text
    • http://kiapelhrimov.cz/UserFiles/File/duwudus.pdfIn PDF document text
    • http://harnettcountyhba.com/userfiles/file/89235898222.pdfIn PDF document text
    • http://massiimo.com/piceditor/file/29517471954.pdfIn PDF document text
    • http://marienoellebermond.com/img/uploaded/file/kevefofudere.pdfIn PDF document text
    • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1621b8ac152d95---82192071954.pdfIn PDF document text
    • https://jung.su/kcfinder/upload/files/54374928679.pdfIn PDF document text
    • http://lavalnerina.com/userfiles/file/pitovupemeniwoguruzovate.pdfIn PDF document text
    • https://dottoridegregorio.it/public/file/52268023603.pdfIn PDF document text
    • https://erimti.com/userfiles/file/57480562918.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621c458f6e494---46085173699.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620745e2679e8---jebukogokevebib.pdfIn PDF document text
    • http://www.klimavill.com/data/editorfile/pabajufozog.pdfIn PDF document text
    • http://elementyzlaczne.pl/media/file/butatabupixi.pdfIn PDF document text
    • http://carrozzeriardue.it/userfiles/files/67413613949.pdfIn PDF document text
    • https://xtremefitksa.xbodyksa.com/ckfinder/userfiles/files/mimatef.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/tukaxitunewuju.pdfIn PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201f8593fcc3---rixitokoloruvimurupabog.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/162386bec8fcbc---90616128116.pdfIn PDF document text
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/96356090691.pdfIn PDF document text
    • https://www.disbel.es/ckfinder/userfiles/files/301826759.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_off00054167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54167 10524 bytes
SHA-256: dd395313048e0546103330b6070025f3629e2e8acb995f020606484a08eb12ed
font_01_sfnt_off00055925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55925 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00057040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57040 19664 bytes
SHA-256: c4156a1be8f9b916066b7c52097bafdef6f4cd35e67f25fdc0f526e9a6bf4ef8

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