Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c46c0890847678…

MALICIOUS

PDF

71.5 KB Created: 2021-02-12 18:01:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3256fda20196c59d2aff1c663d307e8d SHA-1: c4d12d4eed6032c4c5d3c6354c47584e1d392b47 SHA-256: 46c46c08908476780c50dd0597abf34d9cda549da0cb46355a6bebf8613f360e
176 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
  • 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.
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://bologen.ru/wix?keyword=space+invaders+google+extension PDF link annotation
    • https://cdn.sqhk.co/mibajufaneja/gcuZgh7/11_street_diner_miami_beach_fl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471946/normal_5ff33c235b11d.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/agfific/2545449718.pdfIn PDF document text
    • https://cdn.sqhk.co/dejuxafe/JKQhcx9/top_hits_2019_playlist_pop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380211/normal_601bd450820b1.pdfIn PDF document text
    • https://cdn.sqhk.co/takivelalam/hfiiEZg/download_game_survival_on_raft_ocean_nomad_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/seranowe/lqrm6ib/37566794290.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403936/normal_60119756c80a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401546/normal_5fd9be2383b43.pdfIn PDF document text
    • https://cdn.sqhk.co/disegivoji/0jb8Njc/netekawuberufitixi.pdfIn PDF document text
    • http://phillipen.online/ccna_2_exam_answers_20188cqol.pdfIn PDF document text
    • http://italia-doc.space/lusuxuxemoliwolidi2njyc.pdfIn PDF document text
    • http://com-login8.xyz/kejazulgirj1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416322/normal_5fe29e41dca4c.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/hMiaaih/technology_education_college.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/befarekogol/6395932223.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/91405904423.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/kipadi.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_off0000db58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB58 5472 bytes
SHA-256: 425ee07b7666d49f03d3a79386d68a5ed485b74e195d2d608c142c3a1e6bb3f6
font_01_sfnt_off0000ee09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE09 10184 bytes
SHA-256: 91faea77570577e8d7e0f2c7a5dea3ec2284e41108541226f715ad7c75d14d8c

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