Malicious PDF — malware analysis report

Static analysis result for SHA-256 95c34bacfff4aa40…

MALICIOUS

PDF

76.3 KB Created: 2021-03-01 15:45:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: beb36b867631ea086a55d8976e5fd25b SHA-1: b47ec891990ca3979a6c5ebc45639fcc1fdaf8c1 SHA-256: 95c34bacfff4aa409f1075eecd586c968bbc060515ec5064e9522ff7de5ab955
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains numerous embedded URLs, many of which point to disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically flags the document's structure as a link farm on disposable hosting, reinforcing the phishing or malicious redirection pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9744

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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://dafemum.ru/award?keyword=romper+wedding+dress+say+yes+to+the+dress PDF link annotation
    • https://cdn.sqhk.co/zirigajer/Ahc7kRV/hard_candy_molds_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/nuditufu/hc8VhgO/best_voice_changer_software_for_windows.pdfIn PDF document text
    • http://gufurebu.medianewsonline.com/44862936115.pdfIn PDF document text
    • https://cdn.sqhk.co/xewimoziwuvo/Z431fVd/where_is_my_device_settings.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/46683639284.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bogalibamadom.myartsonline.com/how_to_search_for_an_image_using_a_photo.pdfIn PDF document text
    • http://rebivik.epizy.com/46_bike_race_video.pdfIn PDF document text
    • http://poresiz.epizy.com/manual_animate_cc_espaol.pdfIn PDF document text
    • http://zilaxeputeso.epizy.com/wesadugarezavofidobija.pdfIn PDF document text
    • http://gevejonitu.onlinewebshop.net/what_is_the_longest_big_nate_book.pdfIn PDF document text
    • http://duzatip.rf.gd/zavugadebizanarugipekunox.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/67055369976.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/keto_diet_grocery_list.pdfIn PDF document text
    • http://relumewamamit.rf.gd/kelepedobokudota.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/logo_quiz_level_37_answers.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF902 5544 bytes
SHA-256: bacfd875adecd151065b45a27dac8e51d40af056c36d4abe2b9645125fd7f244
font_01_sfnt_off00010bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BCC 10360 bytes
SHA-256: 47926b55be3e05e4dedcbc1627ee317bca71f9554b4a862e9a20a546acf026c9

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