Malicious PDF — malware analysis report

Static analysis result for SHA-256 78230e798729df04…

MALICIOUS

PDF

79.0 KB Created: 2021-11-27 10:47:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: fd24406ece44e5e65a23af4205d23c11 SHA-1: 226b8129536c4884372433bdeeabf0040128499e SHA-256: 78230e798729df0437dfdc0bda525d9016425eeb35816b809004e7b87b605a77
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://hitourkorea.com/FileData/ckfinder/files/20210917_BEFEB1D459DEA0F0.pdf In PDF document text
    • https://guclupin.com/calisma2/files/uploads/wadojakerosalesurum.pdfIn PDF document text
    • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/45602889582.pdfIn PDF document text
    • http://thueotodn.com/uploads/image/files/niliritutada.pdfIn PDF document text
    • http://globomax.eu/userfiles/file/61379208056.pdfIn PDF document text
    • https://doctornhospital.com/banglanews24/editorsfiles/files/subazufekesogulosaxiku.pdfIn PDF document text
    • https://himalayanthailand.com/image/upload/File/jemupebug.pdfIn PDF document text
    • http://fra2ange.it/userfiles/files/34795985373.pdfIn PDF document text
    • http://flynewsletter.com/uploads/file/gisaje.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/553b5e02b5e591980709342fa0892087/degubutafixixolid.pdfIn PDF document text
    • http://naim.naparts.com/images/fck/file/22652469387.pdfIn PDF document text
    • http://laptopcuhaiphong.vn/upload/files/2715481587.pdfIn PDF document text
    • https://stepweystudy.com/ckfinder/userfiles/files/88480290532.pdfIn PDF document text
    • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/ronoxuzikilatorumin.pdfIn PDF document text
    • http://tw-tms.com/uploadpic/xw/files/ferenaveze.pdfIn PDF document text
    • https://slotpt2.com/contents/files/2626009096.pdfIn PDF document text
    • http://konditsionery-zheleznodorozhnyi.ru/upload_picture/file/84539179380.pdfIn PDF document text
    • https://baptistfriends.org/media/rinisabure.pdfIn PDF document text
    • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/5c8c7a18be0a9db78170d726113d1488/febebusowolifiwovilalezo.pdfIn PDF document text
    • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/6826f68294c748f07cb471fe9bab1a3f/48734141591.pdfIn PDF document text
    • https://actsonics.com/uploads/files/202110311747598306.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/62eskksosj84fcv7j1k87safa5/basubafojufasabezijadatab.pdfIn PDF document text
    • https://cingenito.ca/upload/editor/file/98022908626.pdfIn PDF document text
    • http://danamthanh.vn/userfiles/file/sulasekowuvakorofuvipila.pdfIn PDF document text
    • http://www.evisiontiendaonline.com/ckfinder/userfiles/files/7913665687.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/Z3ufxtS7Wvw/uplcv?utm_term=wislawa+szymborska+poems+vietnamPDF link annotation
    • 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_off0000d1b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1B3 17132 bytes
SHA-256: 1169a4e74f8f2e08ecd03a1d680520391fd60f519e9a75b6e0fa61572eaac9ce
font_01_sfnt_off0000fe48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE48 10964 bytes
SHA-256: 2d3bc25640794ce86d176e5fed346e5328bbaa8e5859dda89b9b23e0c708f838
font_02_sfnt_off00011797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11797 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336