Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d9f16c250a3de4d…

MALICIOUS

PDF

72.8 KB Created: 2021-02-16 11:54:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bab7b45b575c47593f84a49ce6ef07b1 SHA-1: 7c4274767b8166f2dbb25646254c7186386d0fa2 SHA-256: 8d9f16c250a3de4d2c605273fe327afb4724925d66e0ae3d9821b5edd0126d6a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=house+of+menander+mosaic PDF link annotation
    • https://cdn.sqhk.co/timadupak/tZke4jc/down_the_mountain_minis.pdfIn PDF document text
    • https://cdn.sqhk.co/zalivelo/Mg3sgdC/instagram_logo_vector_black_and_white.pdfIn PDF document text
    • https://cdn.sqhk.co/wibononuve/gd3lgjl/dragon_ball_legends_twitter_v_jump.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501503/normal_5fc7680a49989.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/I4gfhbw/lynx_fortnite_skin_for_sale.pdfIn PDF document text
    • http://kegodedeta.iblogger.org/apfelkuchen_rezept_einfach_springform_mit_streusel.pdfIn PDF document text
    • https://cdn.sqhk.co/tibakekavero/eOLk56W/65826052596.pdfIn PDF document text
    • http://bcipreactivaperu.com/xofew73nrl.pdfIn PDF document text
    • http://all-gopro.com/kakenekobikokegilrdye.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465145/normal_5ffae2d4c3e04.pdfIn PDF document text
    • https://cdn.sqhk.co/kuvuwisarov/ggej5du/neha_kakkar_hit_song_list_mp3.pdfIn PDF document text
    • http://boost-shop.xyz/vagosugefirurapabafuxeql53u.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxarogajib/igicjco/facebook_business_manager_tutorial_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387035/normal_601b5fc954289.pdfIn PDF document text
    • http://rerubin.space/63185863628wpavf.pdfIn PDF document text
    • http://draiwenstore.online/comets_asteroids_and_meteors_worksheet16m8r.pdfIn PDF document text
    • http://eferevole.com/anydvd_crack_8.3bd875.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380090/normal_5ff68a370f9b4.pdfIn PDF document text
    • https://cdn.sqhk.co/tidaxetosi/uqBOji5/prison_escape_survival_movies.pdfIn PDF document text
    • https://cdn.sqhk.co/buwuvibija/r70iaii/14769085234.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dixorinatedav.rf.gd/ethiopian_grade_12_maths_textbook.pdfIn PDF document text
    • http://fobuzepiru.epizy.com/mens_formal_wear_guide.pdfIn PDF document text
    • http://panejolaraluka.rf.gd/77943471365.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_off0000e14e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14E 5096 bytes
SHA-256: a4320670425f4f8db2fa702bc2bbf84f2116952499719b849d3b641a122df37e
font_01_sfnt_off0000f284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF284 10308 bytes
SHA-256: e06c5027624912ac2578782a50f54cd671e360d714c8f5cab830c1213976be93

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