Malicious PDF — malware analysis report

Static analysis result for SHA-256 29545e6dbc07ea89…

MALICIOUS

PDF

72.5 KB Created: 2021-02-28 09:34:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1d73df7d3fe6aaeb5472cc6c5480d931 SHA-1: 81553df0c4ddc968c40c8af080bcbb24dc8c214d SHA-256: 29545e6dbc07ea89eae984fdf2ec8a267456b70a23249a506121f6fd2df31dc2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://zajinet.ru/award?keyword=what+is+college+algebra PDF link annotation
    • http://sawemawe.mywebcommunity.org/sofelububejomexasuzakiwe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420756/normal_6031b7a850af8.pdfIn PDF document text
    • http://vevaxogejaz.scienceontheweb.net/how_to_use_the_super_snark_tuner.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/duzilobasujefasasepuwijo.pdfIn PDF document text
    • https://cdn.sqhk.co/xolofiwano/ig2haTy/xipex.pdfIn PDF document text
    • https://cdn.sqhk.co/tovipovo/fgjifO1/38019756830.pdfIn PDF document text
    • http://snt-br.ru/present_continuous_exercises_for_adults_upper_intermediatee6iqt.pdfIn PDF document text
    • http://gefosezidubajoz.scienceontheweb.net/what_is_the_little_flock_in_the_bible.pdfIn PDF document text
    • http://youla-24.cc/baar_baar_dekho_full_movie_online3g042.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jamivofobo.rf.gd/97555708.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/11309916913.pdfIn PDF document text
    • http://fetekovabu.onlinewebshop.net/jeu_de_cartes_a_2_facile.pdfIn PDF document text
    • http://zitasixan.atwebpages.com/63003937885.pdfIn PDF document text
    • http://bipibalixezesat.epizy.com/zapezaluvedenix.pdfIn PDF document text
    • http://buzanuziti.myartsonline.com/panasonic_kx-t7633_telephone_user_manual.pdfIn PDF document text
    • http://wuwatomugexove.epizy.com/the_shroudbreaker_sea_of_thieves_guide.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_off0000df25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF25 5216 bytes
SHA-256: 5ab2b02162276d0a8685e6cfbf8cc3ae093d2d3b6a9bad07956cda6dd9b16a53
font_01_sfnt_off0000f0eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EB 10544 bytes
SHA-256: 54633b068135d8be749d9892c1a8d2d341d29361b5e13b92c22e79d81c41efa9