Malicious PDF — malware analysis report

Static analysis result for SHA-256 683884bbb8f4a34c…

MALICIOUS

PDF

75.1 KB Created: 2021-02-08 12:33:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 03954a773b6fc57071d2d6d27d3a3955 SHA-1: fbcc88d5afa252e9d9b3f6bd36b7930ef66c4be5 SHA-256: 683884bbb8f4a34c615870fdf17a01d2f8c88e8e530c74e3ca1ae9b18b5a9ad6
186 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
  • 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.
  • 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/aws?utm_term=pumpkin+carving+scary+templates PDF link annotation
    • http://gallery-shop.site/waxuxukaw9birg.pdfIn PDF document text
    • https://cdn.sqhk.co/pomiziluda/gh6Psid/cronosurf_wave_pro_watch_2._2._1_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484806/normal_6009be2f2230b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366381/normal_5fefc8d070968.pdfIn PDF document text
    • https://cdn.sqhk.co/voxedijudibo/gBhhWKs/46696084858.pdfIn PDF document text
    • http://philonio.online/bruxelles_formation_rue_de_stallen677p.pdfIn PDF document text
    • https://cdn.sqhk.co/rilixuzewiv/tgcbgjC/sky_surfing_boards_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/kekagate/hghfrk4/jovojaguvugeso.pdfIn PDF document text
    • https://mepifinifiwiza.weebly.com/uploads/1/3/4/3/134334375/8457196.pdfIn PDF document text
    • http://dalodafi.22web.org/bittorrent_movies_free_sites.pdfIn PDF document text
    • https://sejuxotanodefif.weebly.com/uploads/1/3/5/9/135957191/271c5a.pdfIn PDF document text
    • https://likudone.weebly.com/uploads/1/3/4/6/134681098/9455654.pdfIn PDF document text
    • https://lebabipiw.weebly.com/uploads/1/3/0/9/130968925/nitozojepawa-rujomizunojel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392451/normal_5fe29329accb8.pdfIn PDF document text
    • http://relax35.ru/sisterhood_everlasting127a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE902 5480 bytes
SHA-256: 2beb0639413558bc4773b34254107bac5b6ff18c5cefd0240e326044e0840ce7
font_01_sfnt_off0000fba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA4 10580 bytes
SHA-256: 2515abc6f3c02e35fb80f9a0068adf5657a92c54b90af3cb3562a1f0bb581c6a