Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bf367bb7dc9f7f…

MALICIOUS

PDF

334.4 KB Created: 2022-02-16 11:54:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: a193e9198601f336a0d3db668c4e004d SHA-1: 65b6f5b2e3a26a7b67d96492b0d392be8af6c158 SHA-256: 72bf367bb7dc9f7f139616f87b1a712655ce78488d08eecc3dba25f994d65ba9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7623

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://sunuf.co.za/XSRYdR1H?utm_term=child+care+act+38+of+2005+pdf PDF link annotation
    • http://reklama-kemerovo.ru/files/files/56371392202.pdfIn PDF document text
    • https://www.journalstudiesanthropology.ro/adm/jsq/kcfinder/upload/files/66209416227.pdfIn PDF document text
    • http://hastensandbreakfast.nl/userfiles/file/pubaruturabeweno.pdfIn PDF document text
    • https://resulgame.com/calisma2/files/uploads/51363325780.pdfIn PDF document text
    • http://lycee-elm.info/userfiles/file/18857562119.pdfIn PDF document text
    • http://wonsakai.com/uploads/files/22100922102.pdfIn PDF document text
    • https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/daketabomikovago.pdfIn PDF document text
    • https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/29777792309.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115ed8d94196---17920740676.pdfIn PDF document text
    • http://bugskin.org/userfiles/file/18309745630.pdfIn PDF document text
    • http://abc-tel.ru/data/File/543655584.pdfIn PDF document text
    • https://www.hotelashray.in/kcfinder/upload/files/30502968687.pdfIn PDF document text
    • https://fertilizerproductionprocess.com/d/files/vapatasolijadijenorovum.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e685e8da703---gikubogovubuzeka.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/mhnruofcpkro9hrc32nglq1811/sarawinupow.pdfIn PDF document text
    • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/b9iinhvfvaj5cm1h5qhtec4ul5/magizezajireg.pdfIn PDF document text
    • http://pilot-market.ru/new/files/file/zudixumasem.pdfIn PDF document text
    • http://orderkai.com/uploads/files/16232107445.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/wogimajitikotuguximega.pdfIn PDF document text
    • http://leoclubmarsala.it/userfiles/files/62635011001.pdfIn PDF document text
    • https://dogninja.com/userfiles/files/12492192523.pdfIn PDF document text
    • https://ymy-tea.tw/upload/files/97076699843.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c796978c978---54736271494.pdfIn PDF document text
    • http://konstruktor33.ru/app/webroot/files/files/85246144211.pdfIn PDF document text
    • http://archiw.bibliotekalesmierz.eu/img/upload/files/77423021562.pdfIn PDF document text
    • http://thevisionkharj.com/userfiles/files/24266033168.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_off0004c4f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C4F8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004dc18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DC18 11232 bytes
SHA-256: ba9a7e205df816ad984ed92b5f989bb301f6b39303f3a629ccb3f4cfdd290577
font_02_sfnt_off0004f69c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F69C 19260 bytes
SHA-256: 5d10cdf2a63466ed8aebe3e718a66144398a9fe70669f246b27fc573adf7170f