Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd238a65d3a3d8b…

MALICIOUS

PDF

126.6 KB Created: 2021-10-28 04:04:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25
MD5: 0183470713f5edbe552f3476aabc8d06 SHA-1: 2ef1e217e94663f91ad4174feeb1262f55a39cc9 SHA-256: 3dd238a65d3a3d8baf992aa05a16dfdc506b0c3f235f5a5ada73cc13389dfb20
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

Heuristics 5

  • 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 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 https://irlanc.ru/uplcv?utm_term=c+char+array+to+int PDF link annotation
    • http://mc-opony.pl/files/file/28813190849.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161704b38d0fe8---weferozi.pdfIn PDF document text
    • http://microcement.ua/userfiles/file/totemamegiku.pdfIn PDF document text
    • https://theptaynam.vn/upload/files/duvino.pdfIn PDF document text
    • http://sarvodurys.com/userfiles/file/82262756221.pdfIn PDF document text
    • http://stphilomenaonline.org/userfiles/file/nabidapipuvo.pdfIn PDF document text
    • http://sbriz.ru/userfiles/file/jomobipaxuke.pdfIn PDF document text
    • http://pileshoppen.dk/userfiles/file/judatupakuraxa.pdfIn PDF document text
    • https://pkmoscow.ru/ckfinder/userfiles/files/20600677940.pdfIn PDF document text
    • http://quanhoangtsi.com/upload/quangtri/files/rimunawedakilelonij.pdfIn PDF document text
    • http://wych123.com/upload/files/nekav.pdfIn PDF document text
    • https://bocrangsuthammy.vn/upload/files/14443914941.pdfIn PDF document text
    • http://goodfortune.hk/UpLoadFile/file///fenitif.pdfIn PDF document text
    • http://jfhcoaching.com/userfiles/files/4522503484.pdfIn PDF document text
    • http://megat.pl/uploaded/fck_files/file/85107531488.pdfIn PDF document text
    • http://ecovn.vn/uploads/news_file/33110830087.pdfIn PDF document text
    • http://reflita.lt/uploads/files/mobomuzige.pdfIn PDF document text
    • http://german-ex.com/images/blog/file/dexiwujefinolavowufogix.pdfIn PDF document text
    • http://aostavet.it/userfiles/files/zotanikatanufewezuke.pdfIn PDF document text
    • http://darslaska.org/ckfinder/userfiles/files/vekuligofilur.pdfIn PDF document text
    • https://cornerstonelaw.eu/userfiles/file/wiboxalez.pdfIn PDF document text
    • http://nebodom.com/userfiles/file/wuwuwilizufola.pdfIn PDF document text
    • https://barcelonacentremedic.cat/files/galeria/files/63707407974.pdfIn PDF document text
    • http://s-privod.ru/userfiles/file/dunosako.pdfIn PDF document text
    • http://inphuduong.vn/upload/files/47434243402.pdfIn PDF document text
    • https://hk-delight.com/UploadFiles/file/peturuwupijedevogevusopat.pdfIn PDF document text
    • https://tuinvandecruys.be/file/lojivumolisob.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18765 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00019f7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19F7C 10128 bytes
SHA-256: 99fccd019275160b4a89d2ba2f2f265602add4a9e95be936b3d7fef457007a98
font_02_sfnt_off0001b60e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B60E 20492 bytes
SHA-256: a8a33e0b4766dd59ad23cde4656c07a68065179efc016540e2c21f9bbefd54f5

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