Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde21d532550a42e…

MALICIOUS

PDF

65.7 KB Created: 2021-03-03 15:45:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 41335596f263798705ab00852fa944b6 SHA-1: b5708c0c8cb2c9a4d55517e2276797176c56fe28 SHA-256: bde21d532550a42ec8e316afe638f1a97953f6f125e7c43fcd1c0108f1061232
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://leonvi.ru/wix?keyword=free+eternal+summer+episode+1+eng+dub PDF link annotation
    • http://sakulog.sportsontheweb.net/fidupixivivomepuwisuk.pdfIn PDF document text
    • http://kebenoda.scienceontheweb.net/vezosetojivefepumuxidifuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458125/normal_5fd9271b9a615.pdfIn PDF document text
    • http://fipizilemuwob.medianewsonline.com/how_long_to_study_before_ccrn.pdfIn PDF document text
    • http://se-mrush.com/how_to_say_hello_in_japanese_slangj56bf.pdfIn PDF document text
    • http://vugekowuzujed.scienceontheweb.net/what_type_of_oil_does_a_chevy_traverse_use.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455405/normal_6018c7bb9a372.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408352/normal_5fccf35369662.pdfIn PDF document text
    • http://redit.fun/c._a._t._s_mod_apk_android04xla.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443574/normal_60394999a8386.pdfIn PDF document text
    • http://preplafond.xyz/bacaan_al_quran_dan_terjemahan_indonesiad0qqg.pdfIn PDF document text
    • http://zodatowafe.getenjoyment.net/26818700039.pdfIn PDF document text
    • http://vejefulolite.22web.org/zigizobenireg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487662/normal_5fe79fdd4b955.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jimomurapujivo.onlinewebshop.net/where_can_donate_used_toys.pdfIn PDF document text
    • http://xaninulutinofeg.rf.gd/witugidosezopufetirodu.pdfIn PDF document text
    • http://jewofeket.onlinewebshop.net/neet_2016_marks_vs_rank_quora.pdfIn PDF document text
    • http://mirajiletumumi.epizy.com/how_to_identify_howard_miller_grandfather_clock.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_off0000c483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC483 5428 bytes
SHA-256: c392ceb81a7f19ea5d34e83916499fa06e16b2eeef66b33c21fdbd2b0be57fe6
font_01_sfnt_off0000d6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DE 10140 bytes
SHA-256: f784bb98bf707854aa09f28c11e9030e71481040cbcd447533de99d3ff77d9fa