Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c1a67ab52b4536…

MALICIOUS

PDF

465.4 KB Created: 2021-08-06 22:13:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 32aaa7b4d27cbb942f7698d87126ec09 SHA-1: 049ee544e28f641b3f024680aa6745a792d28c64 SHA-256: a9c1a67ab52b4536cb322b26c9d14c298bf5796fcedefa74d0cd5f511eae8bcc
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8004

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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 http://martonaroniskola.net/userfiles/file/rakupogotivurexotim.pdf In PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a71d188d08---89007567715.pdfIn PDF document text
    • https://kisikana.hr/userfiles/file/voruwojeribadigo.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c52577abddb---bofeterabexogopewuk.pdfIn PDF document text
    • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b74e2a2e051---tetulazebedumedanaxedibi.pdfIn PDF document text
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/de926b3d003eb795c60ec2614dbb6ac4/11172271127.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/52780596429.pdfIn PDF document text
    • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af95bca470e---39287671800.pdfIn PDF document text
    • https://geneticapanama.com/userfiles/file/teledegusoxup.pdfIn PDF document text
    • http://sakem.org/userfiles/files/riwopanakigizoleke.pdfIn PDF document text
    • https://slaterlighting.com/wp-content/plugins/super-forms/uploads/php/files/46d80343bf25c32efd5c6abca631a1b5/toligufomumezasive.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607890fdb74cb---suzutikelugotoxapugeka.pdfIn PDF document text
    • http://c2ctrading.org/cms_upload/files/109366511.pdfIn PDF document text
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/95470c5098378f8ac7451b4e2ea626f2/67803341419.pdfIn PDF document text
    • http://magogaralbamoble.com/galeria/files/54313280073.pdfIn PDF document text
    • https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce4f02e416---555791074.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160c45ad590031---zapomesasodomodalepekuxo.pdfIn PDF document text
    • http://diamondsnspurs.com/clients/12200/File/6914517900.pdfIn PDF document text
    • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/83rp19esk9d9ql16kjfo0se422/zasirevimaxobekulopepeju.pdfIn PDF document text
    • http://herningbadintra.dk/app/webroot/upload/files/gotofukijikuxibogixur.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/80790063906.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160bf4a135cb8b---35235487482.pdfIn PDF document text
    • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/rexiginekalesuwu.pdfIn PDF document text
    • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/067a31a3289462bf74fb0733f93f7d37/88025900266.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=capitulo+1a+realidades+2+1a-3PDF 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 extracted file (font_00_sfnt_off0006ce9f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006ce9f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006ce9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE9F 10792 bytes
SHA-256: 3bf28adee2d93051795b7d54465b1b73010a8648070b7867d5fe2f4584495640
font_01_sfnt_off0006e7c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7C4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0006ffd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFD8 20484 bytes
SHA-256: 24797075b53119741549e00435bb73cc74b4bd4e02d54c3c46e9bd6bcbf04dcb