Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f7d0dfd04dca3a…

MALICIOUS

PDF

521.9 KB Created: 2022-03-15 17:22:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: e0fd3be1e4b98cd9c996b00a11248072 SHA-1: 21d4a2a78dcaa0a5fe3cf7499cb7c2e365cb45ca SHA-256: a4f7d0dfd04dca3a65ead24c8fdb1863a48cda1582dba5d6e47f7a01e43a351c
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3645

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://lazav.co.za/XSRYdR1H?utm_term=ntr+biopic+2+full+movie PDF link annotation
    • https://www.ogsb.org/asset/ckeditor/kcfinder/upload/files/lilirakezatedepomuze.pdfIn PDF document text
    • https://melz-feu.ru/upload/46103619799.pdfIn PDF document text
    • http://unii-dz.org/app/webroot/js/kcfinder/upload/files/xuwinawunajuxolejotexik.pdfIn PDF document text
    • https://citytrafik.nu/images/file/29732987347.pdfIn PDF document text
    • https://kemxoi.vn/app/webroot/files/images/pages/files/mujubeduba.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/pujasosojanezenawenegake.pdfIn PDF document text
    • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/b790d146e32857c05f06b92e7a0f7067/38992222419.pdfIn PDF document text
    • http://seattledesis.com/fckeditor/file/foxiberegerezigexodo.pdfIn PDF document text
    • http://lovepetclinics.com/file_media/file_image/file/95005803034.pdfIn PDF document text
    • https://copab.tn/216mag.svn/uploads/files/94239608619.pdfIn PDF document text
    • https://aicpwdosaeast.com/ckfinder/userfiles/files/33151494151.pdfIn PDF document text
    • http://hodinovysoused.cz/upload/file/55302057975.pdfIn PDF document text
    • https://www.andreivieru.com/ckfinder/userfiles/files/37006050976.pdfIn PDF document text
    • http://kazbani.ru/kcfinder/upload/files/sobusu.pdfIn PDF document text
    • http://sitarofindiamd.com/userfiles/file/68479981215.pdfIn PDF document text
    • http://bakefruit.com/uploads/files/202202032220539773.pdfIn PDF document text
    • http://strategie-online.net/catalogue_dynamique/file/semanobuk.pdfIn PDF document text
    • http://prtl.pl/userfiles/file/43303562960.pdfIn PDF document text
    • http://auvergne.annuaire-regional.com/ckfinder/userfiles/files/rizizugamikawolefovam.pdfIn PDF document text
    • https://shyuyanchem.com/userfiles/file/zikodakopivibusevax.pdfIn PDF document text
    • http://www.volteram.com/kcfinder/upload/files/xevinugoraboraxut.pdfIn PDF document text
    • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/16204e4fa4cec0---wevutematifadaju.pdfIn PDF document text
    • http://mtkshop.com/images/uploads/file/42456312598.pdfIn PDF document text
    • https://kecweleri.kendalkab.go.id/kcfinder/upload/files/tejezivug.pdfIn PDF document text
    • https://www.steyr-mannlicher.hu/admin/kcfinder/upload/files/xukojimodutibikabeju.pdfIn PDF document text
    • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/e75b61daa2f4f3d463622d993a73406e/gowuxipoli.pdfIn PDF document text
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1620949eb06285---rinopekedoxin.pdfIn PDF document text
    • http://partynfun.com/kcfinder/upload/files/wewivon.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622faf8223175---lixoni.pdfIn PDF document text
    • http://www.asbea.org.br/assets/plugins/kcfinder/upload/files/guwujabepogogin.pdfIn PDF document text
    • https://jackyrouxmethode.com/userfiles/file/kuzamuxipobutivowuzapir.pdfIn PDF document text
    • http://gonuldoviz.com/upload/ckfinder/files/3921397850.pdfIn PDF document text
    • http://pwharrison.com/userfiles/file/29782585272.pdfIn PDF document text
    • https://www.bsff.com/kcfinder/upload/files/kikelakakuz.pdfIn PDF document text
    • http://bankerz.in/qpic/files/rimudunepazivafami.pdfIn PDF document text
    • http://www.debreceni-fogaszat.hu/js/ckeditor/kcfinder/upload/files/budobasubutulufibe.pdfIn PDF document text
    • http://bburago.info/admin/fckeditor/userfiles/file/jijanefudow.pdfIn PDF document text
    • http://biopole-clermont.com/uploads/gestion_contenu/files/290534640.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/162047c1f86949---rofifipopazari.pdfIn PDF document text
    • http://moonyart.ru/admin/ckeditor/kcfinder/upload/files/misefu.pdfIn PDF document text
    • http://xn----7sbjvweekof5d.xn--p1ai/files/files/49824631054.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_off0007988f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007988f.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007988f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7988F 21944 bytes
SHA-256: 015b7b3c5dc84bc2ce2286e89ed65b091d04baa69974eeff030a50306d6a5e6c
font_01_sfnt_off0007d23c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D23C 10608 bytes
SHA-256: 97e3620c4a2a49bf91202439119b90eecc465542857550ea80b5dfb7d1b5e536
font_02_sfnt_off0007ea55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA55 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_03_sfnt_off0008005e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8005E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9