Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e2ac936db59884…

MALICIOUS

PDF

70.7 KB Created: 2021-02-15 03:41:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: db0a8f6b1cf10847b65295bd8eb45635 SHA-1: 7563cb6ba1fe59edcf8945668f8f91b28a099511 SHA-256: 34e2ac936db59884ba49f025fbd7d5e44b43c4e22421c5cd1be6e826e7e14eeb
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/wix?keyword=ps+ms+200 PDF link annotation
    • http://tajeromodovo.66ghz.com/bilososizebejexexamivegu.pdfIn PDF document text
    • http://wuxapogetal.iblogger.org/mozirubatowasod.pdfIn PDF document text
    • http://rankingcoach-apps.com/business_presentation_ppt_templatesmer7l.pdfIn PDF document text
    • https://mepodatadun.weebly.com/uploads/1/3/1/4/131452799/692d380f42e5f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371244/normal_5fd7ab9eb4027.pdfIn PDF document text
    • http://alphabitx.com/national_archaeological_museum_athens_guideci34g.pdfIn PDF document text
    • https://nijasofefovo.weebly.com/uploads/1/3/4/7/134719995/3932230.pdfIn PDF document text
    • https://vanizubifimid.weebly.com/uploads/1/3/0/8/130874516/lagop.pdfIn PDF document text
    • http://leadtop.co/metabolismo_de_carbohidratos_resumenkwepc.pdfIn PDF document text
    • http://trysol.xyz/graduate_school_resume_template_freefy76r.pdfIn PDF document text
    • http://pezidibega.iblogger.org/xixebozemadine.pdfIn PDF document text
    • http://7evenrp.ru/shipwreck_cafe_olympia_washingtonhskw5.pdfIn PDF document text
    • https://xosofanukofupa.weebly.com/uploads/1/3/4/8/134879033/9861053.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/lanis.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/assinatura_digital_online.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/four_lines_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/manual_do_ar_condicionado_portatil_philco_ph13000qf.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/pipekaw.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD873 4768 bytes
SHA-256: 206867d2dfee8f14580bb7d8d1c6bd62ff02e4d77b0ffade82c6ae6652fea230
font_01_sfnt_off0000e8a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A2 10868 bytes
SHA-256: 956badd4ac8a2ae9473330c132cd078ff99094d8c0b89d377e405ffcd810ede6