Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd7bf1cbe180071…

MALICIOUS

PDF

103.9 KB Created: 2021-02-05 06:49:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26
MD5: 6dafd8e5519bffad4e88002769e5bcd7 SHA-1: 86ccc6fc4f2642b2bedb5c2a6d71298fadd32f51 SHA-256: 3dd7bf1cbe1800718b75f24138bfc506fb3b94d95acadfbec38fb339fc0d15b9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/123?utm_term=taylor+series+ln+1%252Bx+radius+of+convergence PDF link annotation
    • https://fexaxotira.weebly.com/uploads/1/3/5/4/135401388/fawiwajur-bozixet-laketepid.pdfIn PDF document text
    • http://reduslimitalia.website/mitsubishi_td04_turbo_specs2l02y.pdfIn PDF document text
    • http://clubstore.info/wheel_action_driverskeras.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369302/normal_6014d8d529dd6.pdfIn PDF document text
    • http://aarbuz.space/new_bhojpuri_full_hd_video_2019tmaqc.pdfIn PDF document text
    • https://cdn.sqhk.co/dodidubi/SihjetP/11784714656.pdfIn PDF document text
    • https://cdn.sqhk.co/lijipatalenu/iinhjA7/criminal_case_mysteries_of_the_past_case_21.pdfIn PDF document text
    • https://cdn.sqhk.co/zesunotu/IIKjf0C/jopemor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381101/normal_5fe859ee3b37f.pdfIn PDF document text
    • https://lififotepul.weebly.com/uploads/1/3/4/3/134339298/d8950790.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366676/normal_6005052cc738c.pdfIn PDF document text
    • https://nidabiweni.weebly.com/uploads/1/3/4/8/134865500/9208241.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn 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_off00013c77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C77 5420 bytes
SHA-256: 0477a3591ff3f128d2be907dba5aabf712a1b434bd5f7a4f2853ce51b91287ac
font_01_sfnt_off00014f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F10 13576 bytes
SHA-256: d934321b32b3fbc375eef636683d5f9022fe8dc924f7d9c63ad6f8823be629c7
font_02_sfnt_off00017c7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17C7D 16252 bytes
SHA-256: 9f141f5e4dd85b6fbc8e58de12c44db348273e805af4f2c1f93c42adaa3aa87d