Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6599c5dc57bb14…

MALICIOUS

PDF

83.0 KB Created: 2021-09-09 00:25:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: e5c9495bf50a20da6c05d69867ab1166 SHA-1: bfd55c0565bd0d2e7a7330fe954ea2594ad569d3 SHA-256: ca6599c5dc57bb14e9fe11945cb31e97c0ebc68cd771aee17c86c84813d4da05
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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.
  • 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 http://phrabat.net/UserFiles/File/nizezemanogovapu.pdf In PDF document text
    • https://gmnavarra.es/ckeditor/files/57424543194.pdfIn PDF document text
    • https://cezartravel.hu/userfiles/file/mababubiregas.pdfIn PDF document text
    • http://holidayinntorino.com/userfiles/files/48100570696.pdfIn PDF document text
    • https://ovistar-dz.com/ckfinder/userfiles/files/ximivig.pdfIn PDF document text
    • http://imosa.asia/uploads/files/202109071511035848.pdfIn PDF document text
    • http://bjerkelunden.org/content/files/userfiles/file///39323604957.pdfIn PDF document text
    • http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_04_03_01_35_6840.pdfIn PDF document text
    • http://acsalma.hu/userfiles/files/vibepagilurajada.pdfIn PDF document text
    • https://tour-paris-guide.com/cite_imgs/file/wifezim.pdfIn PDF document text
    • https://rcot.org/userfiles/file/lopupemirawafomixijutug.pdfIn PDF document text
    • http://vividconcept.in/userfiles/file/jewozofowudiligixegaju.pdfIn PDF document text
    • http://szjglaw.com/uploadfile/file/2021090119155473499.pdfIn PDF document text
    • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132c571ec302---36491509674.pdfIn PDF document text
    • http://gruppocinofilomarsalese.com/userfiles/files/sujuparitutoxoboronijo.pdfIn PDF document text
    • http://krevue.cz/UserFiles/File/95462706199.pdfIn PDF document text
    • http://www.examnotice.in/uploads/files/86019436239.pdfIn PDF document text
    • https://www.libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/35285770611.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136a98138381---30265439921.pdfIn PDF document text
    • https://10fci.org/userfiles/file/sonododamomokod.pdfIn PDF document text
    • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8b8372a37---kavikuritalug.pdfIn PDF document text
    • https://stka.gr/ckfinder/userfiles/files/68992500156.pdfIn PDF document text
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/6e3f862fee19c239650aa36d299f738d/57931882715.pdfIn PDF document text
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/161336e505a620---75791238234.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=moto+g+stylus+live+wallpaperPDF 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_off0000dc4c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dc4c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF463 10680 bytes
SHA-256: a9ff408dda48d3939868b3bc0346ea869a173bb40132f6a2f2f0deb31538c1c4
font_02_sfnt_off00010d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D25 18256 bytes
SHA-256: 94a2b202e1879633d7a136b2bbb95ec5b3cd3d20d4ac2408e0f1a8f3ebd90efa