Malicious PDF — malware analysis report

Static analysis result for SHA-256 89fde4a092a6f30d…

MALICIOUS

PDF

435.3 KB Created: 2022-03-10 06:27:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-01
MD5: 65ff571e7a25e754657aada6e7689f51 SHA-1: ebe6e2ef79ec38e6bbdcb6ae199283b3af8f9824 SHA-256: 89fde4a092a6f30d7d19023e65725cfd1eadd9eccbbfda96800ede443bd520c7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4712

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://fecuq.co.za/XSRYdR1H?utm_term=how+to+read+stock+market+charts+pdf PDF link annotation
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/9fe0c5ef1eb38eaff79782bf793a1ec0/18864347503.pdfIn PDF document text
    • https://penal-garazh.ru/files/rujowub.pdfIn PDF document text
    • http://www.iccet.org.tr/kcfinder/upload/files/kimekuxorovikanirikap.pdfIn PDF document text
    • http://www.easemyloan.in/assets/kcfinder/upload/files/92577102183.pdfIn PDF document text
    • https://supremeroi.com/FCKeditor/file/lebugabetatolisawe.pdfIn PDF document text
    • http://daming-school.com/userfiles/file/31914806444.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/07122ef7e42597538f5759b9c0963cac/77820433905.pdfIn PDF document text
    • http://envisystem.com/upload/userfile/files/4467126561.pdfIn PDF document text
    • https://www.cis2020.scrs.in/kcfinder/upload/files/rekivibebobupuw.pdfIn PDF document text
    • http://peknanevesta.sk/media/file/xunetivagejupibaki.pdfIn PDF document text
    • https://vrm.vn/kcfinder/upload/files/bujusevaradodabajudewetaj.pdfIn PDF document text
    • http://ferbogar.com/assets/kcfinder/upload/files/rotigesixoxanuron.pdfIn PDF document text
    • https://naves.cz/res/file/21662757867.pdfIn PDF document text
    • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621da52380cae---dunetasobopozeg.pdfIn PDF document text
    • https://isped.cz/kcfinder/upload/files/88424430444.pdfIn PDF document text
    • https://vmgeducationtrust.org/home/vmgedu/public_html/public/userfiles/file/87435343837.pdfIn PDF document text
    • http://xedaptap.net/userfiles/file/62980802833.pdfIn PDF document text
    • http://www.oloron-ste-marie.fr/Oloron/kcfinder/upload/files/zajuburabapojomagelo.pdfIn PDF document text
    • http://gamenavigator.su/userfiles/files/8213485258.pdfIn PDF document text
    • http://dydlhx.com/upfiles/file///70147160455.pdfIn PDF document text
    • https://wilgekrans.com/admin/user_files/files/54498882.pdfIn PDF document text
    • http://denetimmusavirlik.com/userfiles/file/99175868015.pdfIn PDF document text
    • http://test.xn--b1adbeobutb0arf.xn--p1ai/kcfinder/upload/files/ludojeregezunagubunu.pdfIn PDF document text
    • https://partnyor.az/userfiles/file/sixegamin.pdfIn PDF document text
    • http://ageddfjtj.pretty-match.com/upload/files/21910664888.pdfIn PDF document text
    • http://robwalker.net/fckupload/file/nikajilegapemukisamo.pdfIn PDF document text
    • http://vlajamo.cz/images/file/81334655586.pdfIn PDF document text
    • https://sacc-la-chaux-de-fonds.ch/fichiers/file/23809526278.pdfIn PDF document text
    • http://zespolbahamas.pl/zdjecia/file/81499079397.pdfIn PDF document text
    • http://kidilangues.fr/js/kcfinder/upload/files/44567885612.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_off00065a58.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00065a58.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00065a58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A58 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00067178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67178 10812 bytes
SHA-256: ab16498c296e3a134bbc85f42f1d49f5d66ee48242e3092aef255f1cd59957ed
font_02_sfnt_off00068a76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A76 19328 bytes
SHA-256: 485f2743c6d33dbbb9e021088a1ca8560605d2f359033661c1bfb66deada0fc6