Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e2b83fdf35d897c…

MALICIOUS

PDF

72.1 KB Created: 2021-02-12 23:58:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ff791c41d90d37c858302a42f2f39f58 SHA-1: 87313f42e811ad1aa760664f57b9c3230cecaa7d SHA-256: 4e2b83fdf35d897c71a9d377779b698c840e4574e739c04e18a07a89d75bc897
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://jottigo.ru/wix?keyword=cube+world+can%2527t+level+up PDF link annotation
    • http://vesefotaso.iblogger.org/delhi_belly_movie_hd.pdfIn PDF document text
    • http://dithetsen.xyz/250287100826p9hi.pdfIn PDF document text
    • https://kekulepolunan.weebly.com/uploads/1/3/4/8/134889268/6463205.pdfIn PDF document text
    • https://rivupabageram.weebly.com/uploads/1/3/5/3/135323939/xakalido_pufimadebas_dosapono.pdfIn PDF document text
    • https://ziwupaxibupava.weebly.com/uploads/1/3/4/3/134379030/xuverutuf_lanuvajilun.pdfIn PDF document text
    • https://dexulana.weebly.com/uploads/1/3/4/2/134234773/sinuloxexopawavojan.pdfIn PDF document text
    • http://fumigatoff.online/rumuwimh9h8.pdfIn PDF document text
    • http://aycotoro5.xyz/shin_chan_tamil_video_3gpmm5k5.pdfIn PDF document text
    • http://art-practice.org/samsung_a800f_combination_filenum7x.pdfIn PDF document text
    • https://jetovalanowu.weebly.com/uploads/1/3/0/7/130739462/sazixevowabitulox.pdfIn PDF document text
    • http://filanion.online/toyota_gracenote_update_downloadrmyhc.pdfIn PDF document text
    • http://hugertely.xyz/25989747962l5mni.pdfIn PDF document text
    • http://copyrightsupportforlnstagram.com/loberevosiwujrxs6z.pdfIn PDF document text
    • http://xteenware.online/kienyeji_poultry_farming_manuali9fyk.pdfIn PDF document text
    • http://hookup153.space/6342154166945knj.pdfIn PDF document text
    • http://muldwych.com/humans_vs_zombies_gateched2fl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jetetekeputesi.epizy.com/c_wpf_expander_template.pdfIn PDF document text
    • http://redusaboj.epizy.com/asphalt_8_free_unblocked.pdfIn PDF document text
    • http://vipesuno.rf.gd/17601807001.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_off0000de34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE34 5120 bytes
SHA-256: e7e379ea3881204746ae4f6d5685bf94614396a2fc7aa61be923aab430284e96
font_01_sfnt_off0000efc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC0 10312 bytes
SHA-256: e504fe782d396275c52570fe65df9e17247a9cd673e169382397d59f3f1ed9a6