Malicious PDF — malware analysis report

Static analysis result for SHA-256 68c0b3b92d31fc32…

MALICIOUS

PDF

79.9 KB Created: 2021-02-16 17:55:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fe03f697ae8cac7091d71775c5c5ea01 SHA-1: d684fe68d87a77b5ef553a1d3fe6d2a03406beea SHA-256: 68c0b3b92d31fc328fb14532f59b969bcfad7a649b8245b96aef1898a8d3972e
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://seumenha.ru/123?utm_term=critical+theory+today+feminist+criticism PDF link annotation
    • http://podarokinsta365.site/sojurukob74qqo.pdfIn PDF document text
    • http://fc-aromat.ru/512042269783pu9t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373527/normal_60269a09b7969.pdfIn PDF document text
    • https://boretenewur.weebly.com/uploads/1/3/1/4/131453221/7131823.pdfIn PDF document text
    • http://heretythere.site/bea_miller_song_like_yourv61p.pdfIn PDF document text
    • https://talogaxuzule.weebly.com/uploads/1/3/4/5/134596774/baxuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392656/normal_60210819470e7.pdfIn PDF document text
    • http://legendbilisim.com/dineina_y_kinesina6njux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391317/normal_6029353447e27.pdfIn PDF document text
    • https://cdn.sqhk.co/rizonozugaj/1ghhwgc/final_fantasy_iv_the_after_years_pc_trainer.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/jighGie/snes_mini_controller_to_usb.pdfIn PDF document text
    • https://gatikewud.weebly.com/uploads/1/3/4/3/134382011/towogonomimesa_pitizezam_javidizubezipus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476427/normal_5ff303f8b938e.pdfIn PDF document text
    • http://lnstagram-blue-badge-form.com/tr_movies_net_tamil_movies80zqj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408858/normal_5ffe64a912379.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_off0000fbc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC8 5268 bytes
SHA-256: 2fead3c74e5a3e9089acc2c3dc95f44a68ee5725597ced12d63fd15fbc7715c9
font_01_sfnt_off00010d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D8C 11164 bytes
SHA-256: 9197f2bee1c9e1558a7f74cb9701f0a5e28b47d7d08212766d4f28f3badce087