Malicious PDF — malware analysis report

Static analysis result for SHA-256 116bc049d7ae91cc…

MALICIOUS

PDF

568.3 KB Created: 2022-02-09 16:52:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6fc4c49f1befca7154d829c0253172e5 SHA-1: 08f0451c50536eec33bc731abde83f0dfe9dc740 SHA-256: 116bc049d7ae91cc2951d706f8177925edb71969ff154a1bb59f62f04feb6870
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4531

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://tevav.co.za/XSRYdR1H?utm_term=school+calendar+2019+to+2020+philippines+pdf PDF link annotation
    • http://geometrarontani.it/userfiles/files/dapokibizozisadelifaxav.pdfIn PDF document text
    • https://infrastone.com/userfiles/files/litugovamebimej.pdfIn PDF document text
    • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/161fa7ed21bd97---fivorewifidowatinavazivev.pdfIn PDF document text
    • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/12f936d42b5356b7b9be003a09263b67/15387751730.pdfIn PDF document text
    • http://iswii.net/ckfinder/userfiles/files/81472537098.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/xepaku.pdfIn PDF document text
    • http://uzks.hr/upload/datoteke/17465193043.pdfIn PDF document text
    • http://www.proektes.ru/kcfinder/upload/files/57019894973.pdfIn PDF document text
    • http://wingmanplanningdemo.com/userfiles/files/dulemefiwinavikepewuwu.pdfIn PDF document text
    • https://altsovmun.ru/userfiles/file/kupiloteg.pdfIn PDF document text
    • http://ruishikaishi.com/upload/content/files/2021/07/20210714080724.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16196522bc008a---ditizativalidawufen.pdfIn PDF document text
    • http://mabo-meccanica.eu/userfiles/files/tebaxu.pdfIn PDF document text
    • https://peusch.lu/userfiles/files/25570107494.pdfIn PDF document text
    • http://www.mab-solutions.fr/upload/file/7061242405.pdfIn PDF document text
    • http://www.plan.msu.ac.th/ckfinder/userfiles/files/zumawegimonumi.pdfIn PDF document text
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/86805c067207e3acbb8aab398514b133/50867964570.pdfIn PDF document text
    • http://chiangmai-esc.net/user_img/files/wefofoxejesiv.pdfIn PDF document text
    • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a7c3efa39e0---70195555049.pdfIn PDF document text
    • http://www.gabrielamaciel.net/images/content/file/39158885200.pdfIn PDF document text
    • http://jan-fotografie.nl/upload/files/10242306975.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_off00085543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85543 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_01_sfnt_off00086b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B41 20084 bytes
SHA-256: 0b048e44bfeb32184dffd475d0f98d602172969b0b4ce6f6b5cd7789408ff7ec
font_02_sfnt_off00089fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FD3 11252 bytes
SHA-256: 2a4c6a7d39235948c97ea831c278ab67f411bdb9900b9ab5dd09cc4a70e55c2e
font_03_sfnt_off0008ba32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA32 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9