Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd1f1d6ee5faf29…

MALICIOUS

PDF

81.9 KB Created: 2021-10-23 17:52:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 940723453a0d4530942db6455727016a SHA-1: 18250e26b19488b27093937c2ad48464a3b3ff5e SHA-256: 3dd1f1d6ee5faf298519aa350dff35c6ad8ef80d6102ce7f771951bf77089dd6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://allytemp.ru/uplcv?utm_term=run+out+of+time+synonym PDF link annotation
    • http://autoscuolemontagna.it/userfiles/files/funevunaxufin.pdfIn PDF document text
    • http://odumakus.com/uploads/files/redokab.pdfIn PDF document text
    • http://kaztelcom.kz/ckfinder/userfiles/files/12017292199.pdfIn PDF document text
    • http://designklasse.de/ckfinder/userfiles/files/22253561506.pdfIn PDF document text
    • http://www.ecostroyservis.ru/File/datupuwevemiruboxufadeti.pdfIn PDF document text
    • https://classoft.ro/userfiles/file/95689307427.pdfIn PDF document text
    • http://srsheicha.com/uploadfile/file/zasovifiguvumeniwa.pdfIn PDF document text
    • http://capableapp.com/uploads/files/jotozajenelevananozu.pdfIn PDF document text
    • http://danbikoreansj.com/uploads/files/tedanozefufanarunoketo.pdfIn PDF document text
    • http://cupta.org/userfiles/files/20211014131932.pdfIn PDF document text
    • https://wsbtitan.com/images/file/reroxafuxosobokibu.pdfIn PDF document text
    • http://brno-skoleni.cz/ckfinder/userfiles/files/19100525986.pdfIn PDF document text
    • http://dogoxuavanay.vn/uploads/files/42322224155.pdfIn PDF document text
    • http://massvt.sk/editor_uploads/system/files/99310692866.pdfIn PDF document text
    • http://cameradungphat.com/uploads/files/busakamepogapobijavub.pdfIn PDF document text
    • http://aedjtjdshbf.pretty-match.com/upload/files/sozakeruv.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614da7b1ea629---59769645468.pdfIn PDF document text
    • https://pasarant0g3l-turbo-h1t.com/contents/files/tuwezuxezinidolakoxegolab.pdfIn PDF document text
    • http://impex-italia.it/userfiles/files/suxapezadefiwukejatep.pdfIn PDF document text
    • https://www.scmsgroup.org/ckfinder/userfiles/files/xitugomogul.pdfIn PDF document text
    • http://alarm.pl/userfiles/file/jogerufixejufemutudavoka.pdfIn PDF document text
    • https://kampusogrenciyurdu.com/file/nimutoxonajefuduloredajow.pdfIn PDF document text
    • http://saktigroup.in/uploads/safaferavefe.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_off0000dc9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC9C 17672 bytes
SHA-256: 4e7164895960c7e45e6bfd00c083d6f7f6e7eadc53958a3a0bd65afe22939c48
font_01_sfnt_off00010a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A72 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012289.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12289 10324 bytes
SHA-256: 7fd20983ac8e45f9a75f4b37e075d52cb94e56e38edda77881cf452ea2e4afca

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