Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7c7b832c1fd014d…

MALICIOUS

PDF

70.4 KB Created: 2021-02-20 00:40:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6ce615f24352d3f5aa05df414e246c0e SHA-1: c153b2d6b46de9a3bdde75d904305eb94a73ae3e SHA-256: c7c7b832c1fd014dde8aacd55f215217fd0979dfe93deac7df1dcdfe5a10a004
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://maypoin.ru/wix?keyword=looking+inside+cells+worksheet+pdf PDF link annotation
    • http://detonic-ufficiale.website/6424387060qq2gp.pdfIn PDF document text
    • http://usacreditmonitoring.info/how_to_pair_gosund_smart_socket_to_alexagmvsv.pdfIn PDF document text
    • https://zanolidades.weebly.com/uploads/1/3/2/6/132695759/rejijobu_texidimo_lukunoremelidud_nifirukid.pdfIn PDF document text
    • https://cdn.sqhk.co/tojemapimibo/vgeighb/balls_journey_hack.pdfIn PDF document text
    • http://supsun-aero.com/bolens_lawn_mower_customer_service_numberz7fvg.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/fhdjchI/mtg_phage_the_untouchable_combo.pdfIn PDF document text
    • http://gtomishebs.xyz/lipixikalusitajedesoodju0.pdfIn PDF document text
    • http://movivuvafozor.iblogger.org/rough_knob_tailed_gecko_care_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/tidelefuzin/idahgjj/pajizota.pdfIn PDF document text
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/cda56.pdfIn PDF document text
    • http://dreamingdeveloper.com/bozuxeu1tsj.pdfIn PDF document text
    • http://ru-order-687646765445.art/bedtime_stories_movie_netflix0e7j3.pdfIn PDF document text
    • https://zerakekume.weebly.com/uploads/1/3/0/7/130739742/e53c53c49e3.pdfIn PDF document text
    • https://piziwola.weebly.com/uploads/1/3/1/3/131382430/556718.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/muvojugejoxip/migoxilefijivafol.pdfIn PDF document text
    • http://bevowamudad.epizy.com/1815175339.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/boxing_games_apk_mod.pdfIn PDF document text
    • http://xiwaresijo.epizy.com/top_10_book_reading_apps_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/11622701791.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_off0000d694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD694 5304 bytes
SHA-256: e331fed4289ff2e66749c1137a05bdd6c781d976993b856282bbfbcd8a2f797b
font_01_sfnt_off0000e8bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8BD 10412 bytes
SHA-256: 21e9317bde39d664ee5cba89ed8de4cb6d68ce95d03aa78bf987a432e59dae69