Malicious PDF — malware analysis report

Static analysis result for SHA-256 4263511f8cb8b068…

MALICIOUS

PDF

69.3 KB Created: 2021-02-21 13:24:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 83e8ee6c8048c7a7d91ee32244c45bcf SHA-1: 9f252d7e287b3a30e64f0c6d171c5cbf59581242 SHA-256: 4263511f8cb8b068f60e0d0fc56f0123a6fe2a92d9aabf66aa4a6d83c77847f3
126 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
  • 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://leonvi.ru/aws?utm_term=ariens+926le+oil+capacity PDF link annotation
    • http://persequen.com/kawekivinigewubv4dmn.pdfIn PDF document text
    • http://wgathering.org/67953876778uyhtk.pdfIn PDF document text
    • http://siduwukalupi.22web.org/sakthi_shanmugaraja_amman_songs_mp4.pdfIn PDF document text
    • http://detonic-de.website/street_music_by_arnold_adoffvudsv.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/zajofovesa_lifagu.pdfIn PDF document text
    • http://pravagims.net/lalesoxirusifam14ns.pdfIn PDF document text
    • http://amst-watch-v1.club/852542493plt5q.pdfIn PDF document text
    • http://copyright-helps-team.com/965318034718csrz.pdfIn PDF document text
    • http://tramlaweq.online/sedojigezusepopexitipuie59.pdfIn PDF document text
    • http://helpcenter.business/mabekiliwumapi534er.pdfIn PDF document text
    • https://rojanebe.weebly.com/uploads/1/3/1/6/131637229/5998180.pdfIn PDF document text
    • http://valaporinepisu.22web.org/lawn_boy_push_mower_for_sale.pdfIn PDF document text
    • http://loxesitigogu.iblogger.org/duxevepulide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nataxos.epizy.com/fevojekobigabuno.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/27820223822.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_off0000d2ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2AE 5460 bytes
SHA-256: 0cd9dfa12f1fe146cc944197e9de2f0076afff5a1e7b8601c880bca877dab258
font_01_sfnt_off0000e551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE551 10364 bytes
SHA-256: 2b367829aa1ec0b4f037171f68663471a7f8eea9f11c5d179f8b2770e3754f07