Malicious PDF — malware analysis report

Static analysis result for SHA-256 72817fdbe4ea30df…

MALICIOUS

PDF

78.0 KB Created: 2021-02-21 09:53:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b1475c593f79b3b26237f97269766c36 SHA-1: a2e18f77aa50adecd7763ed9f99a9a9d6766364d SHA-256: 72817fdbe4ea30df4ead5b6d7f6acfcd19b00a2be659a4f10be7590c6df71900
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://bologen.ru/123?utm_term=samsung+front+loader+washer+drain+pump PDF link annotation
    • http://summer-italy.fun/how_to_win_game_pigeon_8_bally4l8m.pdfIn PDF document text
    • http://drive4mclaneeffingham.com/rsmeans_2015418h2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483604/normal_60287d1a1b3bd.pdfIn PDF document text
    • http://creditscoretrack.info/darth_plagueis_audiobook_free9x4wc.pdfIn PDF document text
    • https://cdn.sqhk.co/wugeguxu/jjchcgc/the_nut_and_bolt_store_hove_bn3_5ql.pdfIn PDF document text
    • http://detonic-ordina.website/binding_of_isaac_afterbirth_save_file9i4cz.pdfIn PDF document text
    • http://ig-objectionform.com/wumugixawogalajokobezuguumvdg.pdfIn PDF document text
    • http://ultra0.space/lidubowajodesuom9cz.pdfIn PDF document text
    • http://yourcy.com/cancun_mexico_10_day_weather_reportrwyg7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411681/normal_60102012eb3f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446036/normal_5ff4ed44178c9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://padekapekalerel.rf.gd/radha_krishna_maharaj_bhajan_free.pdfIn PDF document text
    • http://ratazudawi.epizy.com/luther_vandross_so_amazing_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/despedida_carta_formal_catal.pdfIn PDF document text
    • http://xenemusexo.epizy.com/parkers_guide_to_used_car_values.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/juzixugerutunatafis.pdfIn PDF document text
    • http://kusegewamuzazod.epizy.com/lelanibego.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/bafatopazuvogez.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_off0000f345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF345 5648 bytes
SHA-256: d0587faeeeb32aa3c2356981e71f4d8a76726dab0e755e5d3d3c419af659d0d8
font_01_sfnt_off00010662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10662 10884 bytes
SHA-256: e6abcf0825314f4bfae68ef329f7697f6deab8e5d0362054fa9daa9e0c5aefa7