Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4452c0e8d8bf979…

MALICIOUS

PDF

50.2 KB Created: 2020-11-07 19:40:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: b3067be46d3f99441f3d60d62604ac26 SHA-1: d2ed6649ca9d5c0ff4b0dd32b5a2d4b51a29384d SHA-256: e4452c0e8d8bf97941ee8209c32044000785da84c90bf74227503d2931129230
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/wb?keyword=college%20football%20schedule%20today%20sec PDF link annotation
    • https://lixotesit.weebly.com/uploads/1/3/4/6/134655402/5499021.pdfIn PDF document text
    • https://duvonejubuzal.weebly.com/uploads/1/3/4/3/134321315/jalaweduwud-kizexajofamanir-busovubixinesa.pdfIn PDF document text
    • https://towimoni.weebly.com/uploads/1/3/4/3/134340956/913fa.pdfIn PDF document text
    • https://nokiziwevapof.weebly.com/uploads/1/3/4/5/134507241/1072004.pdfIn PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/5ab3a.pdfIn PDF document text
    • https://gudufuremozowa.weebly.com/uploads/1/3/4/4/134403830/9021210.pdfIn PDF document text
    • https://limakeluror.weebly.com/uploads/1/3/4/6/134657352/e5c790c76d5d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b13d2bf-5a11-48f1-9922-773ce1f910d7/bugela.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b3a5895-80f9-46d0-a38a-b9fc81fcac3f/zufuxifagefunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8f03118-ec2f-42fc-8e00-4952bbc9debe/figazatanuxopetekiwatuwag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b15b537-d76b-440d-b93d-8554e615cda7/resident_evil_vendetta_full_movie_eng_dub.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/341442720.pdfIn PDF document text
    • https://images.daznservices.com/di/library/sporting_news/8e/e/mario-cristobal-041918-In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E39 12168 bytes
SHA-256: d6057d88addcd625af91763edd32afc83be674adfd4c8f1b821844e9abb8bd0e
font_01_sfnt_off0000861e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x861E 5332 bytes
SHA-256: ac4afbdbdd86ee87245cdd959a5c2ef6aac05dd281100eec5bd6b0f4619385e0
font_02_sfnt_off00009847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9847 10384 bytes
SHA-256: dd68dd5cee1256659fa071dca3fa0fed8a9bb173eb1cd5ebc6ce66fd2851ea76