Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffb32a1fa13420d3…

MALICIOUS

PDF

70.4 KB Created: 2021-02-07 23:01:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8ff8927aea3cfd0464df22443c958270 SHA-1: 4a89fee8b89fe59a20fa5881c0dfde967a8b6514 SHA-256: ffb32a1fa13420d3c6bc86c852113f12089cdbf8f90e0c249ecb17017a8e69a6
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://baarspo.ru/123?utm_term=house+of+menander PDF link annotation
    • http://muxonobugimaki.22web.org/sindhu_bhairavi_serial_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/togodawexu/NmJidhE/golazo_football_penalty_shootout_unblocked.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412780/normal_5ff4d90045a55.pdfIn PDF document text
    • http://sallehub.xyz/miminopijebewamud8qipl.pdfIn PDF document text
    • http://pressit.space/yamaha_jet_boat_for_sale_houston_txjyrcd.pdfIn PDF document text
    • http://detonic-shop.website/sinalumovutonegilr2fj.pdfIn PDF document text
    • http://s7hmus.org/tabletop_simulator_mods_legalo4gko.pdfIn PDF document text
    • http://zoo-taxi.site/gixupebowivezu0yh7l.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/AicgcI0/rolling_sky_free_download_for_pc.pdfIn PDF document text
    • http://world-wildshop.com/daily_schedule_template_for_autism0nayh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467017/normal_5fee14b9e4df5.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/jajfXjc/download_game_real_boxing_2_rocky_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/livixugakuf/cVjdujf/just_dance_2020_controller_switch.pdfIn PDF document text
    • https://cdn.sqhk.co/monazaxumol/chhCRgj/inu_japanese_translation_hiragana.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378175/normal_5fe5e563e118f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368759/normal_5feb79982efe0.pdfIn PDF document text
    • http://futup.ru/bellbird_valley_farm_neuseelanddebc0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ridejisedogik.rf.gd/wezexi.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_off0000d64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64B 4984 bytes
SHA-256: 60753e025bd072ccbc56370086239f7cf38e676366f5c864677bcf9fb9efba16
font_01_sfnt_off0000e71f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71F 11240 bytes
SHA-256: 57c1f137774539e536fb1e4350c765db2686d372c6404b81268b3297d1c3a13c