Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2f26db4f0f29511…

MALICIOUS

PDF

70.5 KB Created: 2021-03-04 03:01:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d71c244ec7b908ba7337f2cc02cc3b48 SHA-1: 283a247fba0bd2ac7f1aaf3ad5975cff36f0cd57 SHA-256: d2f26db4f0f29511d1a50b3914d5f9710bdc51714a4a4dc9d7cc670e3b4e9be3
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://kuzutuzo.ru/award?keyword=afterglow+ps3+controller+usb PDF link annotation
    • http://vijevejumozugim.sportsontheweb.net/dd_dungeon_tiles_download.pdfIn PDF document text
    • http://vofufime.mypressonline.com/how_to_draw_a_constellation.pdfIn PDF document text
    • http://mixezitubut.mygamesonline.org/faminapesere.pdfIn PDF document text
    • https://cdn.sqhk.co/xenojepezere/T0TXhdS/cannon_shoot_firework.pdfIn PDF document text
    • http://kudukudimox.sportsontheweb.net/que_es_escudo_segun_la_biblia.pdfIn PDF document text
    • https://cdn.sqhk.co/gojelonub/hjaQ7ne/miranogofaxetururajena.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/play_family_feud_fast_money_online_free.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/cLjgLIB/tiktok_banjo_song.pdfIn PDF document text
    • https://jepejopik.weebly.com/uploads/1/3/4/6/134610321/pajivonalaxiben-satuzoxagedosi-zodusadoxa-xagale.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/luvifikigebexo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nawevuf.epizy.com/dorland_s_illustrated_medical_dictionary_mod_apk.pdfIn PDF document text
    • http://musolag.rf.gd/picsart_free_for_pc_window_7.pdfIn PDF document text
    • http://resilasijajatil.myartsonline.com/what_is_par-q.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_off0000d5b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B4 5360 bytes
SHA-256: 71219880360a56131a36a3f0360832dd548cf5e3d5a0add6cf73ebc098d1f03c
font_01_sfnt_off0000e81f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE81F 11048 bytes
SHA-256: d57cfb1334849a9c55c86d7ba0b6b9f148836c593d2130230ce15035d28f7f8b