Malicious PDF — malware analysis report

Static analysis result for SHA-256 33067cd95a2ffc49…

MALICIOUS

PDF

75.9 KB Created: 2021-02-21 20:15:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 96107da789128ac903fe119f32f6596d SHA-1: 8573128574ff001d683f0bc64a6c09f42ec9a719 SHA-256: 33067cd95a2ffc49a8ccf96c36884ef6d93a9bdd071ec251e467348c3849be8a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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/aws?utm_term=cat+forklift+parts+calgary PDF link annotation
    • https://cdn.sqhk.co/kuzezajolu/Uzgchju/super_mario_world_gba_emulator_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/dupeguwova/jdWjbpf/gogupezojulejigomiw.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/hjgfZib/322258557.pdfIn PDF document text
    • https://cdn.sqhk.co/dalubevemex/rihiiWu/spooky_movie_trivia_kahoot.pdfIn PDF document text
    • https://cdn.sqhk.co/mogowepuw/iemiRxz/in_god_we_trust_bull_sons.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/bjcighc/gabefagiwagisoreru.pdfIn PDF document text
    • https://cdn.sqhk.co/xafemepino/3eVqL59/54509983468.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/ga0gijh/2121649686.pdfIn PDF document text
    • https://cdn.sqhk.co/jututumogu/DL9gdjh/niberinedan.pdfIn PDF document text
    • https://cdn.sqhk.co/livefivepa/hJcgjic/94678775255.pdfIn PDF document text
    • https://cdn.sqhk.co/livefodam/bddFcVD/94803239753.pdfIn PDF document text
    • https://cdn.sqhk.co/doxowite/Xifighd/57797015124.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/wemazun/duritotiwuzejolikixaj.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/34322888186.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/definition_of_congruent_triangles_worksheet.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_off0000ed42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED42 5252 bytes
SHA-256: c2fc434ef1f65b511f1e3feb70d1e85d8a8f93ed4ea62c2089bf35cd3c1358ce
font_01_sfnt_off0000ff3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF3C 10516 bytes
SHA-256: 98578ec01c4bbe5fd850cd8f7fbade7821fa1aaeb658de10f8572648ebfc08cd