Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b91aeba120812b3…

MALICIOUS

PDF

71.9 KB Created: 2021-03-03 16:58:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 70039a256b513c960ad61a2f8bc433f4 SHA-1: 1067a5de3d640077ec4ed9e799baa13adc3f7fcc SHA-256: 9b91aeba120812b34c847cf1db56bcdc774aeec533d877b9917792fe2a6f8574
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/award?keyword=is+india+stock+market+open PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450434/normal_5fcc2cb02ce1a.pdfIn PDF document text
    • http://wuduwoguto.22web.org/avengers_theme_sheet_music_tenor_sax.pdfIn PDF document text
    • http://vogolimipogusoz.mypressonline.com/human_genetic_testing_pros_and_cons.pdfIn PDF document text
    • http://wedejopejujotu.iblogger.org/berlitz_spanish_premier.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401972/normal_602857af8df5f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373505/normal_5ff6258726160.pdfIn PDF document text
    • http://bagomebefekixob.getenjoyment.net/17149044404.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481513/normal_5fddcb6e39353.pdfIn PDF document text
    • http://juzezudusota.mypressonline.com/yiruma_river_flows_in_you_violin_tutorial.pdfIn PDF document text
    • http://zibepifutidi.sportsontheweb.net/delta_monitor_shower_valve_repair_kit.pdfIn PDF document text
    • http://bamirajewenexo.medianewsonline.com/what_is_the_coldest_place_in_the_united_states.pdfIn PDF document text
    • http://dedokomaweza.22web.org/zozasazefirizag.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/zuxime/one_piece_filler_episodes_guide.pdfIn PDF document text
    • http://novutizaxerujik.epizy.com/what_is_a_trade_reference_name.pdfIn PDF document text
    • http://wozojatoxako.epizy.com/gift_voucher_template_free_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/the_awakening_kate_chopin_espaol.pdfIn PDF document text
    • http://pekomuvave.myartsonline.com/pizubuxodadevesut.pdfIn PDF document text
    • http://wipapirub.epizy.com/avengers_endgame_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/activision_blizzard_financial_report_2018.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_off0000dc93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC93 5188 bytes
SHA-256: f7fd285535b2868a092cfd20ce54a78e64c60a50bfe3ba0c78a60cb0aaea7d4f
font_01_sfnt_off0000ee24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE24 10836 bytes
SHA-256: a796e2ed35a26f33ef49697492d56dbb7510f52cf508dcdf749902ae4514498a