Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cee91f5869daa1…

MALICIOUS

PDF

116.1 KB Created: 2022-04-06 10:47:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 09fdea27605fc03c932b58189eb13b32 SHA-1: 817f89fac7c7a4f5db46ca0fef668ff6dc0d45e7 SHA-256: a9cee91f5869daa138be4f33f7d7428109cb00a667fd5ed1f7fc69b34bdedf74
251 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Travel-support phone-number stuffing scam high 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 advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://cdkuys.handysociality.com/upload/files/tokufufekine.pdf In PDF document text
    • https://gratuit.kidilangues.fr/js/kcfinder/upload/files/fonojedapugozelut.pdfIn PDF document text
    • https://xusuzipurojovup.weebly.com/uploads/1/3/4/3/134325257/jidipido_fimixukil_finekosegi_sarubufor.pdfIn PDF document text
    • http://tasarimak.com/ckfinder/userfiles/files/zojob.pdfIn PDF document text
    • https://wavimukuwu.weebly.com/uploads/1/3/0/8/130874629/xebasutipikibis.pdfIn PDF document text
    • https://kisuvali.weebly.com/uploads/1/3/1/1/131163683/tavuvukajuzap.pdfIn PDF document text
    • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16245f1ee801a3---65626491793.pdfIn PDF document text
    • http://www.colfacor.org.ar/administrador_web/kcfinder/upload/files/3476936714.pdfIn PDF document text
    • https://fewupebotugap.weebly.com/uploads/1/3/0/7/130739906/6c70a1459405.pdfIn PDF document text
    • http://tree-house.jp/assets/news/files/mirogebowe.pdfIn PDF document text
    • https://kikebepuziji.weebly.com/uploads/1/3/0/7/130775256/wadezasemuxupo-xawere.pdfIn PDF document text
    • http://daiichitelecom.com/uploads/news_file/6102598620.pdfIn PDF document text
    • http://parilka.by/var/upload/file/59320989614.pdfIn PDF document text
    • http://sntaviator.ru/ckfinder/userfiles/files/77713952661.pdfIn PDF document text
    • https://zenithoverseas.com/assets/userfiles/files/warorujajepubapogujo.pdfIn PDF document text
    • http://www.veedik.net/assets/admin/kcfinder/upload/files/53961707601.pdfIn PDF document text
    • https://peguwuxawotenu.weebly.com/uploads/1/3/4/5/134582441/9241161.pdfIn PDF document text
    • http://2478.ru/admin/ckfinder/userfiles/files/zezebozad.pdfIn PDF document text
    • http://www.ichihachisac.com/imagenes/editor/file/kefote.pdfIn PDF document text
    • https://i-triada.net/upload/files/dekasu.pdfIn PDF document text
    • http://barrybusiness-crm.com/ressource/devis-photo/files/30318534793.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=how%20to%20setup%20garmin%20gpsmap%2064stPDF 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_off00015f57.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00015f57.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F57 19096 bytes
SHA-256: 8f854915883ca94f65be12d1b3cc9b824841e5da0e7d067b36f32e5477b964cc
font_01_sfnt_off00019073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19073 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001a88a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A88A 10972 bytes
SHA-256: f3b53545fdc983a3f94c1bc6f3e8f3cce639932adbb4dddeca235e2fc8b71a5b