Malicious PDF — malware analysis report

Static analysis result for SHA-256 4504b99fc131071a…

MALICIOUS

PDF

420.2 KB Created: 2022-04-17 23:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 812d4f6d24f128c9c410198cb7a3fd34 SHA-1: 5d6ca44ecba3f8fc31e94448da3e8f64d21f541c SHA-256: 4504b99fc131071a66486eda1b66af555bb28a3aa58a25822c40d6fb02c87fc5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5599

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://ragaz.co.za/XSRYdR1H?utm_term=age+of+empires+android+rom PDF link annotation
    • http://webantikvarium.eu/tmp/19902017593.pdfIn PDF document text
    • https://zuxaminuxux.weebly.com/uploads/1/3/4/6/134652083/7659725.pdfIn PDF document text
    • https://dalowosa.weebly.com/uploads/1/3/4/3/134383453/vujaparopegibu.pdfIn PDF document text
    • http://equipociclistaugeraga.com/ciclistas/userfiles/file/wetaw.pdfIn PDF document text
    • https://gasirawudalanud.weebly.com/uploads/1/4/1/2/141251143/sutupanusasuz.pdfIn PDF document text
    • https://satatemusuk.weebly.com/uploads/1/3/4/3/134311800/salininemo-nedagesisojij-diwilebunoludej-fanonuxukirekuz.pdfIn PDF document text
    • http://bedrucken24.de/userfiles/file/66033620896.pdfIn PDF document text
    • https://dofipoxadule.weebly.com/uploads/1/3/4/3/134314370/117683.pdfIn PDF document text
    • http://transporteslaplata.com/imagenes_web/file/70838126729.pdfIn PDF document text
    • https://tesewipelevifiv.weebly.com/uploads/1/3/3/9/133997178/kadojikuz.pdfIn PDF document text
    • http://cn-polylysine.com/d/files/dinesud.pdfIn PDF document text
    • https://zopixidasopotid.weebly.com/uploads/1/3/1/3/131397955/942623bfa1.pdfIn PDF document text
    • https://lodipopigib.weebly.com/uploads/1/3/1/8/131857338/619c24cfbacaaa7.pdfIn PDF document text
    • https://fixugosotodig.weebly.com/uploads/1/3/7/5/137518485/958513.pdfIn PDF document text
    • https://jupedozezuwobig.weebly.com/uploads/1/3/4/0/134040413/nonisupex.pdfIn PDF document text
    • http://ares-gunshop.sk/admin/ckeditor/kcfinder/upload/files/79627183977.pdfIn PDF document text
    • https://dubasebajulux.weebly.com/uploads/1/3/1/3/131382081/36817d6f.pdfIn PDF document text
    • https://mukavotedi.weebly.com/uploads/1/3/1/8/131856112/f5b7d904f43.pdfIn PDF document text
    • https://jenavuwex.weebly.com/uploads/1/4/1/4/141427598/a9974a8d3ceba4c.pdfIn PDF document text
    • http://ktimavoyatzi.gr/images/files/files/21774126694.pdfIn PDF document text
    • https://daxelitifo.weebly.com/uploads/1/3/4/3/134368185/646866.pdfIn PDF document text
    • http://inlocoodontologia.com.br/assets/kcfinder/upload/files/18232508467.pdfIn PDF document text
    • https://pekavodasusoku.weebly.com/uploads/1/3/5/9/135982803/vujobozokeruwelodi.pdfIn PDF document text
    • https://rojikejasixut.weebly.com/uploads/1/3/2/6/132682083/6586796.pdfIn PDF document text
    • http://formpart.com/upload/ckfinder/files/filasubijafafosivumuzijif.pdfIn PDF document text
    • http://rajasthanmetals.com/userfiles/file/43585073333.pdfIn PDF document text
    • https://alkalacarservice.com/public_html/userfiles/file/damavukudozefokeboro.pdfIn PDF document text
    • https://nafutitis.weebly.com/uploads/1/3/6/0/136053715/gejidexuto.pdfIn PDF document text
    • https://rapokivagifo.weebly.com/uploads/1/3/4/3/134338569/1316a98043e.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 extracted file (font_00_sfnt_off000620f8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000620f8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000620f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620F8 18804 bytes
SHA-256: 31e5b56a68e36ec023d5ed68a4b4fbf5d3f425584cfe2cb6fca0a22e01fc2334
font_01_sfnt_off000651c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x651C9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000669e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669E0 10676 bytes
SHA-256: d13656768aaedb2114f468a296120af53de2d19d0b482d48c91a2109e0b024d3