Malicious PDF — malware analysis report

Static analysis result for SHA-256 247d06483f304d54…

MALICIOUS

PDF

73.1 KB Created: 2021-02-26 00:05:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8a218ab9bc0b735abc32340b1a64dc20 SHA-1: 303db503d5024155422225ccd368676730541387 SHA-256: 247d06483f304d540a36bd51567cb3c6a1d32c9b517b711d450c319f7a623cd4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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.
  • 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://druttle.ru/wix?keyword=ng+book+pdf+free+download PDF link annotation
    • https://gebawifu.weebly.com/uploads/1/3/1/4/131483167/4667a6d544.pdfIn PDF document text
    • http://pazadixokumox.sportsontheweb.net/paxupozojapikew.pdfIn PDF document text
    • http://ch-data-2a8fv9s.pw/10837303270554oj.pdfIn PDF document text
    • http://sayseedokg.com/how_to_sync_sennheiser_xs_wireless_17e81a.pdfIn PDF document text
    • http://veronaital.space/azhage_azhage_album_song_mp4_starmusiqn1swg.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/jhVhdiT/bubble_bobble_hero_2_crack.pdfIn PDF document text
    • https://monisobagarov.weebly.com/uploads/1/3/1/8/131856119/8102483.pdfIn PDF document text
    • http://kismykeitio.best/la_mer_sheet_mask_reviewn1t10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417670/normal_5fc793a53dc62.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/batoragubukepo/tunapiregax.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/vogavemavijugogozen.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/yongnuo_568ex_nikon.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_off0000e1c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C0 5296 bytes
SHA-256: 2d5f447d960053906729403d36a71050f9e6b0923b327c38c0d765be0bdb17e3
font_01_sfnt_off0000f3f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F3 10428 bytes
SHA-256: f7755574dab90f67b17f9b140c53a28e0ac917e20179e5a5902973b6467ceaa7