Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa85b548abb11e0b…

MALICIOUS

PDF

334.4 KB Created: 2022-02-04 06:02:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 13186583564a5cdb6272dac6f33677f5 SHA-1: be580654fc54bd505eb2136f7287ae1b8c649212 SHA-256: aa85b548abb11e0bb02059e1e3b52aab21a694e3bf6a338977e0b69915a966e5
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6297

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://podar.co.za/XSRYdR1H?utm_term=ford+antenna+bold+font+free PDF link annotation
    • http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/77911259345.pdfIn PDF document text
    • http://amandatravel.com/userfiles/file/bidotetu.pdfIn PDF document text
    • http://kelkenaghshband.com/app/webroot/img/files/5061202512.pdfIn PDF document text
    • http://aodaibooking.com/FileData/ckfinder/files/20210714_A7E1C90E51CE40AE.pdfIn PDF document text
    • http://sinocelltech.com/filespath/files/20210901180706.pdfIn PDF document text
    • https://www.esicm-old.org/admin/lib/ckfinder/userfiles/files/lulodorif.pdfIn PDF document text
    • https://lifo-sea.com/ckfinder/userfiles/files/50194548482.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/1470jstnc181hvth98utclohbk/65797895277.pdfIn PDF document text
    • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/50f9e79080cb568fc7c6df8e45b9c2da/tajobomawofodem.pdfIn PDF document text
    • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/rerepo.pdfIn PDF document text
    • http://breakevenpoint.pl/uploads/editor/file/16548257202.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/29004690833.pdfIn PDF document text
    • https://xenang-mitsubishi.com/fckupload/file/lulozijepowujonufu.pdfIn PDF document text
    • http://newworldss.com/uploads/file/wuzota.pdfIn PDF document text
    • http://webmba.fr/client/logo/file/84868051233.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161bec2dfd6b64---76075205328.pdfIn PDF document text
    • https://manuscripthandler.com/userfiles/file/95263227962.pdfIn PDF document text
    • http://tomaszfilipczak.pl/userfiles/file/gosadoloripovetalewo.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/40022f239e004ba20e6a16197eede542/4576785023.pdfIn PDF document text
    • https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/51406477945.pdfIn PDF document text
    • http://rakkhunnursinghome.com/user_img/files/93997019846.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/jemilokavumumel.pdfIn PDF document text
    • http://andrelandberg.com/userfiles/file/kalazobazo.pdfIn PDF document text
    • http://ricettebiagi.it/uploads/assets/file/41653704045.pdfIn PDF document text
    • https://fontaine-eva.fr/userfiles/files/61501054207.pdfIn PDF document text
    • http://tensoinox.com/userfiles/files/11376814056.pdfIn PDF document text
    • http://holdemigny.fr/ckfinder/userfiles/files/fuwiralofugupum.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004bcb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BCB5 10204 bytes
SHA-256: 1f0f9e540ba9f819d936cafc3de9ae736e0ad24f3093ad851824b9be662643d6
font_01_sfnt_off0004d3a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3A1 16204 bytes
SHA-256: d0343534efabc94abe1aed0b16b7911b891b13a9af8857f5a7b26d6eb48cdd40
font_02_sfnt_off0004fd92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD92 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off000514ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x514AC 16084 bytes
SHA-256: c27fafdda185be2695e99106f22849c7304d1d4eff2202c3575f3979fbde09eb