Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa91a23f631ec389…

MALICIOUS

PDF

73.8 KB Created: 2021-02-15 17:23:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 087aac662a5bdb99dc371a600bbebe83 SHA-1: ffd4613a434a1a4c80acaff144517c2b472cbd95 SHA-256: fa91a23f631ec389b469f325f2f12cc58139bf9b2a03d92c0ac0223c1c792fc3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wb?keyword=the%20yearling%20chapter%2020%20summary PDF link annotation
    • http://hookup154.fun/police_chase_las_vegas_nevadaz83zv.pdfIn PDF document text
    • https://nanarimedut.weebly.com/uploads/1/3/2/6/132695535/6373473.pdfIn PDF document text
    • https://pelepidavivi.weebly.com/uploads/1/3/1/4/131454492/xedix_rumenepo_zeneboxowopab.pdfIn PDF document text
    • http://bilet-pdd.site/hero_puzzle_game_apkvxs9d.pdfIn PDF document text
    • http://hq-cleartv.info/ratamefigee3l.pdfIn PDF document text
    • http://lnstagramcopyrightservices.org/stack_the_states_2_gameplayv266x.pdfIn PDF document text
    • https://dugubutufafug.weebly.com/uploads/1/3/0/7/130775350/10d96bcb627.pdfIn PDF document text
    • http://blog-millionaire.buzz/hound_dog_dashboard_loginmaoi5.pdfIn PDF document text
    • http://acupofjacob.com/bikini_competition_training_guide_bookic3vc.pdfIn PDF document text
    • https://seporarutigofu.weebly.com/uploads/1/3/2/7/132741198/84f9d4d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jeponowon/64180400881.pdfIn PDF document text
    • http://petetilazuji.epizy.com/62262650201.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/whatsapp_for_nokia_xl_phone.pdfIn PDF document text
    • http://gulesovel.epizy.com/performance_auto_parts_edmonton.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/baazigar_full_movie_hd_mp4.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_off0000e444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE444 5672 bytes
SHA-256: 4e269a094c9ca7618b18c5f1265316acfd0d40913fbe204934db936deee3844a
font_01_sfnt_off0000f772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF772 10276 bytes
SHA-256: 244960e67fb56c1b14559571635125293e96723347d528c7db4c7d4457ab9795