Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd776a8e55275d7c…

MALICIOUS

PDF

203.8 KB Created: 2022-02-06 08:14:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: c53209a99880f04b0d59c7837d147b63 SHA-1: a26c4cd671926195f2790451717e1be055cd1ae0 SHA-256: cd776a8e55275d7c0d24bc9eae75a38abaacfd2d79f52b4cd6e58a7aa6cba338
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8080

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://fecuq.co.za/XSRYdR1H?utm_term=electrophilic+addition+definition+chemguide PDF link annotation
    • http://krcatikyonetimi.com/userfiles/file/robijekofoludabenotubexim.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/uiuehlbuq3lu3c1c6npth3392c/votejogojatip.pdfIn PDF document text
    • http://congress.bpv.su/content/files/files/71832170982.pdfIn PDF document text
    • http://bdn10.cz/files/file/segazugemakamipij.pdfIn PDF document text
    • http://telekommarketing.com/firme_data/files/41589862811.pdfIn PDF document text
    • http://bn-biz.com/userData/board/file/dajajetakusiwulemaga.pdfIn PDF document text
    • http://goldenpeak.it/userfiles/files/wuvuledesudol.pdfIn PDF document text
    • https://laplacedesstores.com/upload/file/75199640180.pdfIn PDF document text
    • http://isisthailand.org/file_media/file_image/file/30604104373.pdfIn PDF document text
    • http://potlista.com/file/files/57250624613.pdfIn PDF document text
    • http://nusratali.com/userfiles/files/nuxuxawavuji.pdfIn PDF document text
    • http://lulanjina.net/upload/files/konakupimi.pdfIn PDF document text
    • http://donaldnathanlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/20589427697.pdfIn PDF document text
    • https://hosvagyok.hu/userfiles/file/65380626472.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/4bbe043d0c667ed3ce61b7512c6f0bb9/mujube.pdfIn PDF document text
    • http://amuseonline.com/absite/userfiles/file/zoxubaze.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/essiqk5o6lasoktru8g0cvs1la/86041512451.pdfIn PDF document text
    • http://malir-naterac.info/UserFiles/File/kujufadifidikumobebizilox.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/ptvr2jau0qu8rsi5eavbrkchrh/gujigebisozukelo.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16109b9e85cdb4---99174341787.pdfIn PDF document text
    • https://webrekruit.com/php_codes/Scott/VieauAssociates/code/userfiles/file/dobavetigatolewatabida.pdfIn PDF document text
    • http://laboratoriodiprogettazione-ve.it/userfiles/files/mibobuza.pdfIn PDF document text
    • http://beta-rc.com/upload/files/30952892202.pdfIn PDF document text
    • http://thinhhoanggia.vn/Images_upload/files/jivurojepul.pdfIn PDF document text
    • https://evpersoneli.net/ev-personeli/file/64803358966.pdfIn PDF document text
    • http://aire-limpio.com/img/editor/file/fabupogeweke.pdfIn PDF document text
    • http://sipsak.nl/userfiles/file/zutusopanebizexo.pdfIn PDF document text
    • https://profession-your-dr.com/uploads/files/202110180049578676.pdfIn PDF document text
    • https://arkadas.yuzuktr.com/eskortarama.com/resimler/file/64017091162.pdfIn PDF document text
    • http://euroteam.vn/ckfinder/userfiles//files/garanopiwenewupemuzuk.pdfIn PDF document text
    • http://flywings.sk/UserFiles/file/gejurubuselabobezal.pdfIn PDF document text
    • http://lapenya.cat/imgjovesnaves/file/17045527429.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_off0002c255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C255 10980 bytes
SHA-256: 8fedb5e21a0f9119a48759c38b8018ed64314a107ae5fb27ae840a0ecb143b1c
font_01_sfnt_off0002db5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB5C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002f277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F277 17376 bytes
SHA-256: ace8e76504b71d89983bf7da061311a0510001eccb945977e463f7f3190a7fe1