Malicious PDF — malware analysis report

Static analysis result for SHA-256 b05aba579e61a7b9…

MALICIOUS

PDF

71.7 KB Created: 2021-03-01 13:47:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8c81d78a57a8968b5b9c0d122d6c8e34 SHA-1: 6a13f133155d35b5d28c5438d8c9f0665fd9e6b5 SHA-256: b05aba579e61a7b953f217ef20245148a182f0f2d261caade39c845fdea75b99
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://pelibifir.ru/award?keyword=stephen+hawking+movies+and+tv+shows PDF link annotation
    • http://tejidirexe.mywebcommunity.org/sabumirekebemojuxi.pdfIn PDF document text
    • http://vandify.com/592434264899hfx8.pdfIn PDF document text
    • https://cdn.sqhk.co/divojimo/jaghckA/bekovabolulijegujofadiro.pdfIn PDF document text
    • http://debopuforu.22web.org/nuwujodavokidemifi.pdfIn PDF document text
    • http://waystep.site/valgame_dios_capitulo_28eo558.pdfIn PDF document text
    • http://kowojolajamuv.getenjoyment.net/goviw.pdfIn PDF document text
    • http://gagivukamuw.getenjoyment.net/generalidades_de_salud_publica_segun_la_oms.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464070/normal_5ff2a12a1da52.pdfIn PDF document text
    • http://ch-redirect.icu/autodesk_sketchbook_review_androidzkn4m.pdfIn PDF document text
    • http://omoikiri.info/bafozetenrfob.pdfIn PDF document text
    • http://fevinoreniwelik.sportsontheweb.net/tosetofegizofupuveg.pdfIn PDF document text
    • https://cdn.sqhk.co/sifilefu/cjjJji7/zombie_football_player_costumes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://relotetuje.rf.gd/android_blob_emoji_list.pdfIn PDF document text
    • http://magotabitujotu.rf.gd/rinetevotaxuke.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_off0000daaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAAF 5564 bytes
SHA-256: 9e21bf4d6798915a5893afd5aa907c9b0903366fe5675661a26e327258705dfa
font_01_sfnt_off0000ed8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED8F 10232 bytes
SHA-256: 9a59489cb2949d226733b117cc766b4c5a70bfdadf10a4aad3294183395d0a30