Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd4d93ba787874d…

MALICIOUS

PDF

92.1 KB Created: 2021-10-18 14:49:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-16
MD5: b6a4d2c676e0f8f614be3fe8377266c7 SHA-1: 09b82403ed5988e0e4e87d4328819054863f64ce SHA-256: ddd4d93ba787874dd228beb8ae1bcb53a5601ef6adb999d5148af7758937ebad
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://wastran.ru/uplcv?utm_term=white+celestite+crystal+meaning In PDF document text
    • https://ceylanotel.com/firma/files/97695939050.pdfIn PDF document text
    • https://valleyrentals.com/userfiles/file/31686661992.pdfIn PDF document text
    • http://panda-es.tokyo/yamituki-n/uploads/files/lubobimiwa.pdfIn PDF document text
    • https://almavilag.hu/files/files/gasuvikekegazomag.pdfIn PDF document text
    • https://profesa.net/userFilesfile/53341039432.pdfIn PDF document text
    • http://seto.cz/uploads/14895506458.pdfIn PDF document text
    • https://apskarota.org/userfiles/file/dufutekokosenozutiberib.pdfIn PDF document text
    • http://eng.sut.ac.th/tce/2016/administrator/ckfinder/userfiles/files/43890188795.pdfIn PDF document text
    • https://fentesmakina.com/paket/upload/files/gesovulizivukatiboxuxi.pdfIn PDF document text
    • https://aznamaste.com/ckfinder/userfiles/files/bugugalodibumudazerad.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/21097211899.pdfIn PDF document text
    • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/a4bbfd7462ac0c85f40b7cefd5c7fc9b/3589164474.pdfIn PDF document text
    • http://5thaveseniors.org/userfiles/file/68455319255.pdfIn PDF document text
    • https://bcm.es/files/galeria/files/zopegasibotadafuk.pdfIn PDF document text
    • http://pc580.cn/upload_fck/file/2021-9-11/20210911042606479731.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616a0d57d3653---753978426.pdfIn PDF document text
    • http://fujiya-burbank.com/uploads/files/digirate.pdfIn PDF document text
    • https://www.almuhja.com/ckfinder/userfiles/files/45868886897.pdfIn PDF document text
    • http://savitapiti.org/ckfinder/userfiles/files/72801814565.pdfIn PDF document text
    • http://fireprovietnam.net/luutru/files/40718469516.pdfIn PDF document text
    • http://madinagirls.com/easydo%20v2.00/files/uploads/nosofozibelumexupu.pdfIn PDF document text
    • https://lideregitimpaketleri.com/calisma2/files/uploads/43529341107.pdfIn PDF document text
    • https://damiel.eu/userfiles/file/13027696110.pdfIn PDF document text
    • http://zamgph.com/uploads/file/130708568680.pdfIn PDF document text
    • http://vititanon.com/user_img/files/polesez.pdfIn PDF document text
    • https://insinkerator.us/images/uploaded/file/luvozawuwasafofamelami.pdfIn PDF document text
    • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1615a1b617d7a5---wobobufa.pdfIn PDF document text
    • http://hoinhikhoavn.com/img/files/64506189368.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_off00010221.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00010221.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10221 18516 bytes
SHA-256: 23d3ea1f6afd4cbb7edc6cdc4c0af6e170f72ec2b3b1e5df459e1bdcb408d0fc
font_01_sfnt_off00013214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13214 10664 bytes
SHA-256: 5cad4f331592d0e7d3f2d8274ff94f7963389d8ef7f8595a069fb161592446b1
font_02_sfnt_off00014a63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A63 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1