Malicious PDF — malware analysis report

Static analysis result for SHA-256 46fcfaf14580a4bf…

MALICIOUS

PDF

73.7 KB Created: 2021-01-17 02:54:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: b738512868ae3f7f903a5be47178e800 SHA-1: 008aa1a9f215cfe4a4ed0803ef6782f8b4a3d503 SHA-256: 46fcfaf14580a4bfc173707b86f3f81b7b0a9cf16286b3450320312bd5f1457b
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/shook?utm_term=video+editor+and+slideshow+maker+for+windows+10 In PDF document text
    • https://cdn.sqhk.co/gedofovel/pwhjii7/gods_of_rome_for_pc.pdfIn PDF document text
    • https://dajurejew.weebly.com/uploads/1/3/4/7/134753869/tugusavigexafafosu.pdfIn PDF document text
    • https://cdn.sqhk.co/fogobewataja/15YEEvA/color_snake_dream_meaning.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455670/normal_5fa8b79758e76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425235/normal_5f9a2791452ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402711/normal_5fbd511cd45dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408482/normal_60036d7152010.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468531/normal_5feb8073d9c14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469641/normal_5fa78391bfa4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497095/normal_5fb82342af14b.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/kodipopujufipig/23224497135.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/love_story_mp3_song_download_by_taylor_swift.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/carolina_back_institue.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/malden_mills_polar_fleece_split_king_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/wixamilego.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_off0000e355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE355 5464 bytes
SHA-256: 8660db7ad3a3093d4aa064e17d5f32c6400462d2c9907edda17570c8384dc688
font_01_sfnt_off0000f5d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D5 10548 bytes
SHA-256: 9c09e37e4fcfb9c83cc3aba74d42c6be312cedd1f228f93b7e123328b36841e8

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