Malicious PDF — malware analysis report

Static analysis result for SHA-256 829e27d02580d77a…

MALICIOUS

PDF

71.0 KB Created: 2021-01-27 05:47:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 73d517d034e88e753f796ebbdfffb648 SHA-1: d14967c50a1e420ef9b7890fa538d41fa9b6506f SHA-256: 829e27d02580d77abf2cf9f2b0238f0932efb39df03caec5be4f6b662d7d78fe
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://traffset.ru/wb?keyword=super%20sniper%20killer%20java%20game PDF link annotation
    • https://vobudogekatobef.weebly.com/uploads/1/3/0/8/130874620/2818007.pdfIn PDF document text
    • https://pivokobofu.weebly.com/uploads/1/3/4/6/134648089/bcb1d.pdfIn PDF document text
    • http://tranquils.space/lepododety1x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497079/normal_5fcf51a421c13.pdfIn PDF document text
    • https://mijutadozas.weebly.com/uploads/1/3/4/5/134590660/b7642638a0368a6.pdfIn PDF document text
    • https://ratesikumetu.weebly.com/uploads/1/3/1/1/131163578/taximakuxez-nefefupunotumo-pukobarawefa-jujowugazet.pdfIn PDF document text
    • https://jizojalagakamu.weebly.com/uploads/1/3/4/8/134886497/lebosunixejebateg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372073/normal_5fe1bf6c1f07b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382952/normal_5fd28834d6df4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365660/normal_5ff11a862d7cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454049/normal_5ffdebe3c2609.pdfIn PDF document text
    • https://dojepojejexun.weebly.com/uploads/1/3/4/6/134668276/4cb5f.pdfIn PDF document text
    • https://vidijizuv.weebly.com/uploads/1/3/0/7/130776341/88e1dbb3544.pdfIn PDF document text
    • http://nukels.xyz/47877021018zy754.pdfIn PDF document text
    • https://fazerirusabutef.weebly.com/uploads/1/3/1/3/131381144/72b160811a4.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/wupiwupiwot/animal_farm_character_list.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/my_grandfather_s_clock_sheet_music_piano.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/how_does_phenol_chloroform_dna_extraction_work.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F0 5444 bytes
SHA-256: d03af67da68c03eb43c334e597fd6f156adb5282e11a743e6cc89e89ad85fd7d
font_01_sfnt_off0000eb6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB6F 10456 bytes
SHA-256: ec49a518bac32c29868ede840651d41cddac733609989d5b67d10c24c3e71257

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