Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7a69917d41b50f…

MALICIOUS

PDF

297.2 KB Created: 2022-03-10 22:20:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 73899c7cedf11d9ffbbbca638c45eb05 SHA-1: e9d9f06d8a33363dc9c180afa3f7aaa9c778cd9b SHA-256: cd7a69917d41b50fb3dff2122f06b891f4f24b438effbdf0905e0d4d34b58e20
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6854

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://wirut.co.za/XSRYdR1H?utm_term=2+step+equations+with+fractions+worksheet PDF link annotation
    • http://www.halpellet.hu/userfiles/files/ripatilosotinol.pdfIn PDF document text
    • http://ourdesign.hk/ckfinder/userfiles/files/timulenasajifar.pdfIn PDF document text
    • https://www.tahitotfaluovodak.hu/ckfinder/userfiles/files/81522078453.pdfIn PDF document text
    • http://wamaeassociates.com/images/uploads/originals/file/21604461009.pdfIn PDF document text
    • https://morganmethod.tuesdaytrader.com/ci/userfiles/files/4781803837.pdfIn PDF document text
    • http://vning.net/filespath/files/20220212084519.pdfIn PDF document text
    • https://isabellepieman.com/userfiles/file/fowegenuvu.pdfIn PDF document text
    • https://buzascsaba.hu/userFiles/file/wejut.pdfIn PDF document text
    • http://jatyn.cn/upfiles/202203/file/1646475908.pdfIn PDF document text
    • http://kungfubp.hu/admin/assets/images/files/pimarudowimegimixewat.pdfIn PDF document text
    • http://ahjygjg.com/upload_fck/file/2022-3-3/20220303140952317819.pdfIn PDF document text
    • https://robalton.es/Albums/images/file///suwofejupafasewu.pdfIn PDF document text
    • http://cansuyu.org/resimler/files/zifodosavugefufinelo.pdfIn PDF document text
    • http://ansing.nl/userfiles/file/pemufoloxosovatutixonuja.pdfIn PDF document text
    • https://quanghuydulich.vn/img_duhoc/files/gudalojisuxivitififaf.pdfIn PDF document text
    • http://change4best.ru/upload/file/89400229374.pdfIn PDF document text
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/e969b966387e737cf2374d8fd41e562b/wilitenomulitogabewivegu.pdfIn PDF document text
    • https://rambud.pl/uploaded/file/1319715533.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/548b26fbe0b65f1c7c268f11b9529cba/156013675.pdfIn PDF document text
    • https://www.travelknowhowscotland.co.uk/assets/js/ckfinder/userfiles/files/55014362603.pdfIn PDF document text
    • http://corse.annuaire-regional.com/ckfinder/userfiles/files/7176983302.pdfIn PDF document text
    • http://inbjnews.com/data/cheditor/0603/files/64162719489.pdfIn PDF document text
    • https://netcsemege.hu/ckfinder/userfiles/files/33105706744.pdfIn PDF document text
    • http://spgcplb.com/ckeditor/kcfinder/upload/files/1718060679.pdfIn PDF document text
    • http://bbbo.handyfriendship.com/upload/files/79325497960.pdfIn PDF document text
    • http://mikailang.net/userfiles/file/20220218090948_1051592163.pdfIn PDF document text
    • https://hfbee.tw/upload/ckfinder_temp/files/20220310023826.pdfIn PDF document text
    • https://fsbulletsandbrass.com/userfiles/files/lalojunariluxinopero.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/161fdb3668a4f3---gobaxiju.pdfIn PDF document text
    • http://sieuthicayxanh.vn/webroot/img/files/jubevazusu.pdfIn PDF document text
    • http://myredm.ru/uploads/file/naligefubuxesudipajetigow.pdfIn PDF document text
    • http://slovoveri.org/userfiles/ruwowopakakirarodoriw.pdfIn PDF document text
    • https://www.zolmedis.lt/ckfinder/userfiles/files/35509323171.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620727d003267---jovewirenor.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620fdbbebe583---domomozi.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_off00043283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43283 18756 bytes
SHA-256: edc52f3fb74f345245bb74ef222579a204a59cbe20424a09c0cf35fe93ebaf3b
font_01_sfnt_off00046405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46405 10976 bytes
SHA-256: 92d95a8de3a47fa74c03e8f2ada4756c73a797b1cfef6dad4815d1984dc075a3
font_02_sfnt_off00047d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47D9B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9