Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2864dc7fcb5eca2…

MALICIOUS

PDF

70.2 KB Created: 2021-02-25 16:28:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0da11c0c2b723ad9ca1cbe3cf753410f SHA-1: b24908b323fa0632005b35f6381926a436143e65 SHA-256: b2864dc7fcb5eca25e4ef76ae6c37202c978bc3aa5110a6c8c35d06c63d20932
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/wix?keyword=tasco+red+dot+battery+size PDF link annotation
    • https://befugusugub.weebly.com/uploads/1/3/2/6/132683140/zulutuwibuduruj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392869/normal_5fec027451692.pdfIn PDF document text
    • https://raguwamirib.weebly.com/uploads/1/3/4/6/134630778/5bbc35ff62c172.pdfIn PDF document text
    • https://tawuzipufuk.weebly.com/uploads/1/3/4/7/134707118/5025193.pdfIn PDF document text
    • https://kajubogoxin.weebly.com/uploads/1/3/0/9/130969430/d56426436ec7425.pdfIn PDF document text
    • https://lazesomixasima.weebly.com/uploads/1/3/4/5/134588612/d9c558c0c58d6e.pdfIn PDF document text
    • https://puraxexi.weebly.com/uploads/1/3/4/7/134718411/1195586.pdfIn PDF document text
    • http://itdiscount.info/55880995236h41kf.pdfIn PDF document text
    • https://nutomejeti.weebly.com/uploads/1/3/4/7/134702699/jujitosiruzep.pdfIn PDF document text
    • https://xuzelete.weebly.com/uploads/1/3/2/6/132681171/b44db9014bf7f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366381/normal_5fcfa21ad47e2.pdfIn PDF document text
    • http://hookup756.fun/a_history_of_the_world_in_6_glasses_chapter_7_summaryql3k9.pdfIn PDF document text
    • http://skameyki.club/34160691639oswk8.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/woberiz/basic_english_book.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/lubefil.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/27627940087.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/beckhoff_plc_hardware_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/give_me_liberty_textbook_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/matufidumakokixomo.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/mugapuvisixex.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/catalase_liver_enzyme_lab_sb1b_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/beedi_jalaile_omkara_video_song.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_off0000d70d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD70D 5144 bytes
SHA-256: 27e1053444cbca253e49a97613b38a6a05f1b552944ff64b89e039f29e57753b
font_01_sfnt_off0000e8a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A1 10240 bytes
SHA-256: d93c39969f05b0bd49c08ac440d2c0451220126b3176d3bf369efd5a5ca17b8a