Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3ff316888344c8…

MALICIOUS

PDF

79.2 KB Created: 2021-01-22 00:54:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 7753f5bcb271c8b29e8ba947c9ad76f3 SHA-1: e83e9e09d2a53a2f021b09ae47b4ea7b9e634797 SHA-256: 4e3ff316888344c83e0bb801b19d57d3da997b5e44b00a8950a05cb477e5bec0
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=christian%20bale%20batman%20hd%20wallpapers In PDF document text
    • https://puzomukasudugun.weebly.com/uploads/1/3/4/8/134865935/nobudakiz_mazawizigaso_namodu_lolatifisaboleg.pdfIn PDF document text
    • https://site-1178860.mozfiles.com/files/1178860/notazelulanix.pdfIn PDF document text
    • https://jajajijonox.weebly.com/uploads/1/3/1/4/131453539/b3b68cd6ace3810.pdfIn PDF document text
    • https://depewezuluro.weebly.com/uploads/1/3/4/1/134108544/e06cb9.pdfIn PDF document text
    • https://site-1200721.mozfiles.com/files/1200721/billie_eilish_net_worth_2016.pdfIn PDF document text
    • https://visumosibe.weebly.com/uploads/1/3/0/8/130814065/8313511.pdfIn PDF document text
    • https://rejafolurolege.weebly.com/uploads/1/3/0/7/130740622/9e5be287cd795d.pdfIn PDF document text
    • https://site-1197381.mozfiles.com/files/1197381/68449760234.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527164/normal_5ffe49270ab6e.pdfIn PDF document text
    • https://cdn.sqhk.co/lawafopugu/aNhfhhF/xaboz.pdfIn PDF document text
    • https://site-1174052.mozfiles.com/files/1174052/eliza_wasn_t_looking.pdfIn PDF document text
    • https://munuteme.weebly.com/uploads/1/3/4/8/134862418/xigomupuga-razax-lujunuza-nutuponowume.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/cLji3fx/blue_color_traffic_signs.pdfIn PDF document text
    • https://manobafezelibo.weebly.com/uploads/1/3/1/6/131636879/2204826.pdfIn PDF document text
    • https://cdn.sqhk.co/nebuneduzib/2gfdgdM/dragon_nest_mobile_guide.pdfIn PDF document text
    • https://batuginuvitewaw.weebly.com/uploads/1/3/4/0/134013132/2021775.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372104/normal_5fd9a94b3bfde.pdfIn PDF document text
    • https://site-1178374.mozfiles.com/files/1178374/rexegopamupos.pdfIn PDF document text
    • https://cdn.sqhk.co/kepilujofeje/IExgehc/66702937591.pdfIn PDF document text
    • https://givebuzuwipagin.weebly.com/uploads/1/3/0/7/130775776/9660766.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385235/normal_5fdb90e5de39e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385437/normal_600623aba58a8.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_off0000e289.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE289 5336 bytes
SHA-256: 9789af69972fe2edd5665446c5b121f09a6d22b087a51f45be9965496be726d0
font_01_sfnt_off0000f485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF485 10948 bytes
SHA-256: ea4b4d042825fa841a095b1f76746eeff6e8a8845f23b437bdc0fc49990159a6
font_02_sfnt_off00011a2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A2B 16120 bytes
SHA-256: 2c82e59efc3e87473e35575e657b9b3f4b5e69948a198705b4ca9b4f6629797f