Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c78bf9950de0236…

MALICIOUS

PDF

69.6 KB Created: 2021-03-02 20:58:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 29fc046db72a789666e9dce412a98db4 SHA-1: 7219d76644b99c076527972735639b7349eb3767 SHA-256: 2c78bf9950de0236e176af7ea71e2fc934bd4bd25f9d63708271e11bffd83444
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gimoguvi.ru/award?keyword=replace+filter+on+robinair+34788 PDF link annotation
    • https://cdn.sqhk.co/jujadiziga/n9hhq3s/classic_bubble_shooter_arcade_game.pdfIn PDF document text
    • http://potawuzaj.medianewsonline.com/roxukupemi.pdfIn PDF document text
    • https://cdn.sqhk.co/fikubife/AtghOgF/tumizakomanupukazedozitem.pdfIn PDF document text
    • https://cdn.sqhk.co/sabumijobude/IiGEthf/xufusi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453901/normal_6031268376f7a.pdfIn PDF document text
    • http://zatuzosej.iblogger.org/pdf_converter_to_editable_word_format.pdfIn PDF document text
    • http://gadatoreneperil.mygamesonline.org/32686593228.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495400/normal_60110e125618b.pdfIn PDF document text
    • http://rogepexegugujer.22web.org/pumelawo.pdfIn PDF document text
    • http://jaralet.getenjoyment.net/60925941226.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366637/normal_5fd973303b0bf.pdfIn PDF document text
    • https://cdn.sqhk.co/joxutedunik/ieF2wnW/3285127542.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://modenizax.epizy.com/witafarikoguketumuzibimez.pdfIn PDF document text
    • http://noboxiroxe.epizy.com/breeze_linear_algebra_cheat_sheet.pdfIn PDF document text
    • http://pimoked.rf.gd/gilajetaju.pdfIn PDF document text
    • http://lemenugedo.epizy.com/what_does_kcal_mol_mean_on_a_fitness_tracker.pdfIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/67464622564.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC595 5292 bytes
SHA-256: 86df68d44f583a7d2c13e779ccc08d80eb90150c37834ebc3262e8272c47f939
font_01_sfnt_off0000d7a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7A2 10408 bytes
SHA-256: 7ba4f118d710aecf60600af4e6db5177edd5c16481cfe621ea694432c4662b63
font_02_sfnt_off0000fb45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB45 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3