Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef11134ba2463f30…

MALICIOUS

PDF

72.2 KB Created: 2021-03-05 02:27:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0001755547f408ab330869511188fde0 SHA-1: 6bd5a65c0e654cc9ef58b69a86f30999fefb82c7 SHA-256: ef11134ba2463f30ddf82030e30028532340db3923eeccc6bc1c3234f4f7e477
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://fokemale.ru/award?keyword=celestron+astromaster+70az+telescope+blue PDF link annotation
    • http://uber-global.com/89476692115mnmse.pdfIn PDF document text
    • http://detonic-ro.website/dls_19_mod_profile_daton13m.pdfIn PDF document text
    • http://fakixigulidol.mywebcommunity.org/how_to_show_your_patriotism.pdfIn PDF document text
    • http://xonigej.mypressonline.com/989084173.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485016/normal_60145c76b44fb.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/pumakivunifomozotadusibe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446400/normal_5febd4ee7de67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487419/normal_6018174686d14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389830/normal_6027e0095ed16.pdfIn PDF document text
    • http://sipataj.sportsontheweb.net/ragomifesonajilunusexun.pdfIn PDF document text
    • http://duzusedolatepe.mypressonline.com/34070257066.pdfIn PDF document text
    • http://evatopshop.xyz/4208932519d13ph.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/dykes_to_watch_out_for.pdfIn PDF document text
    • http://desazibali.epizy.com/tomegodulut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bc5c886-c2cf-4c43-bc9c-e59d4f44b2c3/31934787021.pdfIn PDF document text
    • http://fubavinexazixo.onlinewebshop.net/buripadolezazava.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a9467a7-c074-4449-9731-9cd48644ea90/hunger_games_catching_fire_cast.pdfIn PDF document text
    • http://diwevobu.rf.gd/2983806086.pdfIn PDF document text
    • http://zajeleji.rf.gd/biblia_de_estudio_teologia_reina_valera_1960.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c76c6751-a9be-43c1-b33e-632555a7de9f/renenov.pdfIn PDF document text
    • http://zudupaxub.myartsonline.com/logitech_z623_2.1_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55dfaa43-8285-4fa5-9c2e-88f5c359cd2e/sofizikuvubepil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a46add90-5a82-4ef2-aa49-ef62db6f04b6/juzagofifijewekunisefax.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_off0000db8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB8B 5396 bytes
SHA-256: e7dac1b4521916f96eb2808767ad6e05237918e58b07a79e964f2e01494a6001
font_01_sfnt_off0000edd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD1 10324 bytes
SHA-256: d82302dccb1458dd9cac6ab184005b704ba0e1b3c84424e7b2ac2d6d34b8a459

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