Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7dc134b775105d1…

MALICIOUS

PDF

279.1 KB Created: 2022-02-08 03:46:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 3c57330b4271e634a3b262f06c9fcfda SHA-1: e319af16bcea62ae2498ec506b1c4bb3cf2184db SHA-256: c7dc134b775105d1958db43c1424ff98dc3d1e0dd147b1fb5cec0531d6429967
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6089

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://bengalroys.com/ckfinder/userfiles/files/kipebarobeletalokupol.pdf In PDF document text
    • https://oferta.lt/i/File/68455085740.pdfIn PDF document text
    • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1616ee2397f3be---sibenibarokolitusumofeme.pdfIn PDF document text
    • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/9be48892beb6ff74cc30b34a938e1903/10318144789.pdfIn PDF document text
    • https://nesbedcollege.com/singhania/downloads/file/89133745469.pdfIn PDF document text
    • http://wawa757.com/uploads/files/12892356758.pdfIn PDF document text
    • https://bepxuyenviet.com/upload/files/24138364861.pdfIn PDF document text
    • http://nbc.com.vn/ckfinder/userfiles/files/88418855963.pdfIn PDF document text
    • https://www.domaine-boussard-chablis.fr/ckfinder/userfiles/files/vuvuxoratipixedudabuzeja.pdfIn PDF document text
    • http://chickenwild.com/upload/contents/images/images/rarulip.pdfIn PDF document text
    • https://ayurmitra.com/files/file/kumezuve.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160f896c73501b---jonezubegaduwugujeguja.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1617d5fb516095---1156964901.pdfIn PDF document text
    • https://ecoolteh.eu/galeria/file/naxetezemipazepujuferasu.pdfIn PDF document text
    • http://rajskiewakacje.pl/userfiles/file/larufuzuwadifokamo.pdfIn PDF document text
    • http://enjoy.sk/editor_uploads/system/files/3740757092.pdfIn PDF document text
    • http://gyndoktors.de/ckfinder/userfiles/files/15078191455.pdfIn PDF document text
    • http://accessprecision.com/userfiles/file/mupinodivu.pdfIn PDF document text
    • https://adilakaryakitnakliyat.com/kcfinder/upload/files/49697081103.pdfIn PDF document text
    • http://gima.ge/admin/ckeditor/ckfinder/userfiles/files/minipopobamosapogiledapo.pdfIn PDF document text
    • https://davidfauquemberg.com/home/fauquemb/david/bbdg_site/userfiles/file/80597355464.pdfIn PDF document text
    • https://biocenfis.es/uploads/assets/file/9219846250.pdfIn PDF document text
    • https://khangle.vn/uploads/images/files/84243874358.pdfIn PDF document text
    • http://fantalife.nl/userfiles/file/69179760228.pdfIn PDF document text
    • http://buffagiuseppeinfissi.com/userfiles/files/19260422009.pdfIn PDF document text
    • http://jnnycc.org/userfiles/file/sosatuga.pdfIn PDF document text
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e2cec6909a---53380013275.pdfIn PDF document text
    • http://www.hausbaumesse.at/ckfinder/userfiles/files/78483780739.pdfIn PDF document text
    • https://gkatsov.com/userfiles/file/73841316640.pdfIn PDF document text
    • http://csc0351.com/userfiles/file/20210918045701_kugl6n.pdfIn PDF document text
    • http://bienbao.net/uploads/files/69016672830.pdfIn PDF document text
    • http://bargiel.com.pl/ckfinder/userfiles/files/53170337534.pdfIn PDF document text
    • http://dobrejaja.com/Upload/file/63475074628.pdfIn PDF document text
    • https://venefoil.com/ckfinder/userfiles/files/30183775738.pdfIn PDF document text
    • http://angerdress.store/ckfinder/userfiles/files/datezumizoredaxu.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161f50c77f2a64---bevotolo.pdfIn PDF document text
    • https://dakhoathienhoa.net/images/files/zapamobekimajafododusute.pdfIn PDF document text
    • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/161b74267239f3---56653532236.pdfIn PDF document text
    • https://immo-cjeanpaul.lu/userfiles/files/11898533559.pdfIn PDF document text
    • http://nirmalamathachurch.org/cms_uploads/image/file/17252070037.pdfIn PDF document text
    • http://uteambio.com/upload/files/96565581397.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ad602369a82---lekufoz.pdfIn PDF document text
    • http://ourhkg.com/UPFILE/userfiles/files/fusirabakabizezejazowik.pdfIn PDF document text
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16103711b3e8e2---fibal.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161468fee4cc70---93084172229.pdfIn PDF document text
    • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/345d8d2811ef1b663c24146d7aac301a/51176174865.pdfIn PDF document text
    • https://hogozaty.com/ckfinder/userfiles/files/94824364385.pdfIn PDF document text
    • https://istanajp.com/contents/files/62894383677.pdfIn PDF document text
    • http://otticagries.it/custom/archivio/files/fewuranotusu.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/loxak.pdfIn PDF document text
    +10 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003eeb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EEB9 10788 bytes
SHA-256: 12afffa46ac6d3d629744351edb108b12f7817a9cbd70c5fad99ea9b555973be
font_01_sfnt_off00040748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40748 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00041e68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41E68 17368 bytes
SHA-256: 61699a5a0886dba28c70ba135fd484800907c3c7d734f24b971179bfca8cc39d