Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dfa47735dd3d33b…

MALICIOUS

PDF

73.8 KB Created: 2021-01-28 21:03:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 118f373221221f36ab760e24cebb0617 SHA-1: e435c80582721fedab880ede6c49d936a73b8e3b SHA-256: 9dfa47735dd3d33bd0389cea1f8421664000d7b0287c5216993656778a2e252a
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jacksth.ru/123?utm_term=left+center+right+game PDF link annotation
    • https://wujadadi.weebly.com/uploads/1/3/1/0/131070572/c72548ec093.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415065/normal_5ffc8083f3ec8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365525/normal_5ff0365be8432.pdfIn PDF document text
    • http://flymoney.net/617805062323d4dc.pdfIn PDF document text
    • http://vasowenotaruso.22web.org/bootstrap_templates_login_page_free.pdfIn PDF document text
    • http://clobuss.ru/86466730617jobee.pdfIn PDF document text
    • http://pomirkapa.site/zombie_gunner_raw3q6zc.pdfIn PDF document text
    • http://pogadai.xyz/simon_petrikov_and_betty_grof_adventure_time4mext.pdfIn PDF document text
    • http://organic-ita.space/el_arte_de_la_guerra_de_sun_tzu8yjip.pdfIn PDF document text
    • https://nepibosumu.weebly.com/uploads/1/3/4/3/134363752/292fa7705.pdfIn PDF document text
    • http://armada.technology/53734713132btsn2.pdfIn PDF document text
    • http://lnstagram-verificationbadgeform.com/banana_pi_m3_android_5._1hwh33.pdfIn PDF document text
    • https://gapefupekud.weebly.com/uploads/1/3/1/8/131871489/6eebb96bb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501479/normal_5ffcb77a5c399.pdfIn PDF document text
    • https://mepodatadun.weebly.com/uploads/1/3/1/4/131452799/sonijuwavo.pdfIn PDF document text
    • http://7evenrp.ru/best_online_daily_planner_app9bb11.pdfIn PDF document text
    • http://daravto18.ru/67703456861tihqg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lekinip.epizy.com/35492948746.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_off0000e31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE31A 5024 bytes
SHA-256: 7df54c5b09eab838bd7c4206d924f48aa3613d420984c8e77da3f00da2c0df38
font_01_sfnt_off0000f414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF414 10840 bytes
SHA-256: d712c3406c84593b7ecae49199a796a10dd61ab34d17c42be1433fc507f69ce5