Malicious PDF — malware analysis report

Static analysis result for SHA-256 73246576ec860180…

MALICIOUS

PDF

71.2 KB Created: 2021-03-06 12:19:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 85ee97019c5482e1adf85de4916bcba7 SHA-1: 7c48889aa8e66b0fcdea2aa36a26b59ece72aaab SHA-256: 73246576ec860180397b8455a1babf05aadd47f312336afcf1c828cde89a28ea
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://kuzutuzo.ru/award?keyword=que+es+el+ayuntamiento+en+la+biblia PDF link annotation
    • https://zajefogana.weebly.com/uploads/1/3/1/4/131407312/bisugesolem.pdfIn PDF document text
    • http://excellent-spb.ru/xadub711uv.pdfIn PDF document text
    • https://cdn.sqhk.co/goganededem/jnkghnL/epic_battle_simulator_2_apk_uptodown.pdfIn PDF document text
    • https://cdn.sqhk.co/luwukamuku/iiTyoax/33038768068.pdfIn PDF document text
    • http://espaceabone.com/tcl_32_inch_led_androidxrc5z.pdfIn PDF document text
    • http://krokoboko3.xyz/how_to_unlock_greatcall_jitterbugxa89p.pdfIn PDF document text
    • http://gnoogle.site/wing_chun_kung_fu_the_wooden_dummyrquwf.pdfIn PDF document text
    • http://artdebug.site/top_bar_bee_hive_plans_free446v0.pdfIn PDF document text
    • http://dompodklyuch.com/national_championship_football_history_scoresytumz.pdfIn PDF document text
    • https://tinutenuku.weebly.com/uploads/1/3/4/6/134664278/c9a73e1369.pdfIn PDF document text
    • https://cdn.sqhk.co/zibomevuguli/hdEgesX/dumofezukomuzawa.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/ejbhbZ4/the_last_triple_crown_winners.pdfIn PDF document text
    • https://cdn.sqhk.co/belumozobu/iphbJih/jio_mobile_recharge_offers_karnataka.pdfIn PDF document text
    • https://cdn.sqhk.co/losopodelim/hehb5jC/rojago.pdfIn PDF document text
    • https://cdn.sqhk.co/dewavasese/POiijh9/resunoninuz.pdfIn PDF document text
    • http://udilische.club/29491589839jjsc9.pdfIn PDF document text
    • https://cdn.sqhk.co/tixuniwe/gDifd2L/botegaxuro.pdfIn PDF document text
    • https://sokuvefababadax.weebly.com/uploads/1/3/1/8/131856373/3b76de2b7.pdfIn PDF document text
    • https://cdn.sqhk.co/wepunajexiju/S2thcEV/mirror_lake_trailhead.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d8e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E1 5040 bytes
SHA-256: 02fe3b1f220be1abdf8acab68895e439ad24132365462f7a1cc5c5f1cf24b8e4
font_01_sfnt_off0000e9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F8 11004 bytes
SHA-256: fd9a433c9e73ce75e45a93d3ca918256beeddc7381ed1539279c95aed09772fb

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