Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42216696418f67f…

MALICIOUS

PDF

76.9 KB Created: 2021-02-25 13:48:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3b55804ab0dd0531c38e43d59558bdc5 SHA-1: 2fc0d682f24dd24ae5c8d0b8a6c77f4f24877615 SHA-256: e42216696418f67ff2addf198e34887810fa57831dfb3060b7871c6f77970fd8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wix?keyword=lax-max+new+generation+remote+control In PDF document text
    • https://static.s123-cdn-static.com/uploads/4529893/normal_5feeeb7a96743.pdfIn PDF document text
    • http://forajadafogaxuv.medianewsonline.com/blue_is_the_warmest_color_movie_watch_free.pdfIn PDF document text
    • http://delayikapy.xyz/animal_companion_sheet_pathfinder_2e58jbm.pdfIn PDF document text
    • https://tuwavufubuxa.weebly.com/uploads/1/3/3/9/133997694/xilupo.pdfIn PDF document text
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/situpipekuga-japogatorodesux.pdfIn PDF document text
    • http://fruktovik.com/10894920283vwiwc.pdfIn PDF document text
    • http://hookup157.site/how_to_check_balance_on_regions_visa_gift_card_walmart7cia1.pdfIn PDF document text
    • http://fametasubub.22web.org/moketutibivadepelute.pdfIn PDF document text
    • https://mafekesajivirik.weebly.com/uploads/1/3/4/3/134381466/titab_zadezogobe.pdfIn PDF document text
    • http://silkhfig.bid/fun_esl_writing_activities_for_adultsew6wm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rufopanapoxo.rf.gd/infographic_template_free_illustrator.pdfIn PDF document text
    • http://fubavinexazixo.onlinewebshop.net/jukidijidulugegoke.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/betty_la_fea_new_york_transformacion.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/gevuj.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/english_vocabulary_in_use_elementary_cd-rom.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/weak_acid_strong_base_titration_problems_answers.pdfIn PDF document text
    • http://fomobiwudaz.rf.gd/zonejosejoxeler.pdfIn PDF document text
    • http://tasijojaludet.rf.gd/rufudimotimibusibe.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/simulador_ser_bachiller_2018_descargar.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_off0000f0fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FE 5072 bytes
SHA-256: cacc337709bc067aa13febcc755205179f21f277378c831c645480886b716603
font_01_sfnt_off00010252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10252 10428 bytes
SHA-256: eb92ee1326d00a0b8e44e52e41d017780e380e76bc3ba24855d6a2d1da5d9d66