Malicious PDF — malware analysis report

Static analysis result for SHA-256 445c8164b9d00d95…

MALICIOUS

PDF

338.7 KB Created: 2022-04-09 14:24:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: a41d9bb6f140713c810ad70095f27697 SHA-1: e3e6a9c9639622a71d90c422db0bb3ce42e03f1b SHA-256: 445c8164b9d00d95281342e449139159768e204c8706ec5f7a7235aa8f917e35
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6374

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=eso+werewolf+leveling+guide PDF link annotation
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620aea5c0699c---gisipuwuza.pdfIn PDF document text
    • https://investkwik.com/userfiles/file/pusuramokisijefenu.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16213399733601---xitepuravumodinamirusu.pdfIn PDF document text
    • https://relaisdesvignerons.com/userfiles/files/21763946488.pdfIn PDF document text
    • https://kameno.bg/userfiles/files/xinudewijegoxojuw.pdfIn PDF document text
    • https://charterboatdeliverance.com/uploads/files/tamubomuxatelolu.pdfIn PDF document text
    • http://www.hebrewforreadingcomprehension.com/content/vakenonop.pdfIn PDF document text
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/d89e6cbbd35b47213f64fdfbb5f4a059/jasumiwelifilafudubagaze.pdfIn PDF document text
    • https://psychologgia.pl/Upload/file/vemexa.pdfIn PDF document text
    • http://birizgardenhotel.com/userfiles/file/mizuguvimemaninokiw.pdfIn PDF document text
    • http://dutchcasinogroup.com/UserFiles/files/84340453667.pdfIn PDF document text
    • http://turatabor.hu/media/keluneguvukipojutub.pdfIn PDF document text
    • https://musicalfamilytree.com/files/79934887726.pdfIn PDF document text
    • http://sevinctekstil.com/resimler/files/67150326198.pdfIn PDF document text
    • http://y-mirai.biz/js/kcfinder/upload/files/vaditar.pdfIn PDF document text
    • http://kiapelhrimov.cz/UserFiles/File/vukenij.pdfIn PDF document text
    • http://fukushigetakahiro.jp/pic/files/59049772630.pdfIn PDF document text
    • http://xn----htbccnijgu6o.xn--p1ai/kcfinder/upload/files/dupubovezabusudese.pdfIn PDF document text
    • http://rockhouseschool.com/rockhouse/uploads/files/vovarolalamopavukopuz.pdfIn PDF document text
    • http://virus-safe-zone.com/ckupload/files/vedasadirexexa.pdfIn PDF document text
    • http://batteryzone.pk/assets/kcfinder/upload/files/motabekuwaw.pdfIn PDF document text
    • http://myflora888.com/ck_files/files/juwem.pdfIn PDF document text
    • https://daquin-ferriere.fr/userfiles/file/1021535358.pdfIn PDF document text
    • https://sahyadrisevasanstha.in/userfiles/file/zikipon.pdfIn PDF document text
    • http://lorichphoto.com/pictures/file/74114708202.pdfIn PDF document text
    • https://alariel.be/userfiles/file/5759094670.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/68epvbvec55otr4fso3uv7mu66/5614788116.pdfIn PDF document text
    • https://namdolove.com/FileData/ckfinder/files/20220328_D1CEFF76BEA19227.pdfIn PDF document text
    • http://adasbruiloften.nl/userfiles/file/32711474909.pdfIn PDF document text
    • http://www.barbazan-debat.fr/ckfinder/userfiles/files/gunomejasof.pdfIn PDF document text
    • http://melody-house.ru/kcfinder/upload/files/sepamu.pdfIn PDF document text
    • https://intimtreningdebrecen.hu/frontend/ck/kcfinder/upload/files/xorijumowinirag.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/kqb84tgkadsvuavptopn843qum/zogogenafugotixukimemon.pdfIn PDF document text
    • https://ofertaromania.ro/ckfinder/userfiles/files/pesev.pdfIn PDF document text
    • https://medcogulf.com/uploads/files/44766348555.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_off0004c319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C319 10504 bytes
SHA-256: 7c282c54f1cf3623bd2ba69b99e2e8764681d6fab3138f02be1316b8ed838f6f
font_01_sfnt_off0004daea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DAEA 19064 bytes
SHA-256: d94feb45cc44ecb69c69c94fa8fc188aefdde7f7d86fec91311e66f334608e68
font_02_sfnt_off00050cb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50CB2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off000524c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x524C5 16192 bytes
SHA-256: 126aabc53b187bc4421529373f04e2f66a11804dfeaeb35cb650b132d56c1dbd