Malicious PDF — malware analysis report

Static analysis result for SHA-256 478c74a3ab0d6370…

MALICIOUS

PDF

76.4 KB Created: 2021-01-10 21:27:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 2ff1039384d2be4fe40e48d01cf63676 SHA-1: 470258de16e44c9dc460249d91cbcd04f023dfc9 SHA-256: 478c74a3ab0d637074680742074219f2191aeb9246d94fb47c504ea5489e84d3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafffe.ru/wb?keyword=soccer%20penalty%20kick%20distance PDF link annotation
    • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/911b4a3a6a26f9.pdfIn PDF document text
    • https://warajepij.weebly.com/uploads/1/3/4/6/134608856/dozefivavidularumak.pdfIn PDF document text
    • https://zelowomuguzak.weebly.com/uploads/1/3/1/3/131379017/wogekujoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402933/normal_5fdbf5c7703ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425737/normal_5fa9198e1dac1.pdfIn PDF document text
    • https://site-1178449.mozfiles.com/files/1178449/inside_out_coaching_book.pdfIn PDF document text
    • https://dexatasudawuge.weebly.com/uploads/1/3/4/4/134477966/fifofakemow.pdfIn PDF document text
    • https://site-1175229.mozfiles.com/files/1175229/pop_cubes_game_for_android.pdfIn PDF document text
    • https://vedewoxid.weebly.com/uploads/1/3/0/7/130738666/pejitironode.pdfIn PDF document text
    • https://tibaxasunoz.weebly.com/uploads/1/3/4/5/134589804/9112099.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jemazejodep/pufoboxekaxupudomejakiwu.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE034 5124 bytes
SHA-256: de87b61d45b0d94aef846667f40a8a51ce57f126f277160c9983f5fde1aba429
font_01_sfnt_off0000f19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19C 10784 bytes
SHA-256: 6edfb1ae31e9ee9a11d99d0aa0f693b9ee05703a1a18a4f78dbef399ec90254d
font_02_sfnt_off00011678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11678 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230