Malicious PDF — malware analysis report

Static analysis result for SHA-256 c89e09baffca9c8a…

MALICIOUS

PDF

70.1 KB Created: 2021-02-24 23:28:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0211c66f75c858b9a4ab0505ada535e6 SHA-1: 80f509f4671d507d296a1a35f7b60cd4b1e1e3c5 SHA-256: c89e09baffca9c8a5baeecc91d3b9fd385cddae06aa610efacdd0883265437bd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/wix?keyword=igcse+biology+exam+tracking+sheets PDF link annotation
    • https://zunepijubu.weebly.com/uploads/1/3/3/9/133986973/rizul_nefafedurusiri_soduza.pdfIn PDF document text
    • https://xejigidusulup.weebly.com/uploads/1/3/4/7/134730122/e5fd6d7f3c5d.pdfIn PDF document text
    • https://tabureribe.weebly.com/uploads/1/3/0/8/130813037/nonege.pdfIn PDF document text
    • https://cdn.sqhk.co/dogilijesiwu/3igjdB7/ice_cream_places_in_metairie.pdfIn PDF document text
    • http://devajusogav.22web.org/dyson_cinetic_big_ball_vacuum_attachments.pdfIn PDF document text
    • https://cdn.sqhk.co/gusoguribus/eig9jfy/tower_defense_infinite_war_apk.pdfIn PDF document text
    • http://bererudi.22web.org/chamaram_movie_songs.pdfIn PDF document text
    • http://mrshadow.net/top_notch_fundamentals_workbook_unit_1474n4p.pdfIn PDF document text
    • https://cdn.sqhk.co/xuzuvazol/ihe6dii/13114742156.pdfIn PDF document text
    • https://vinawulisakuj.weebly.com/uploads/1/3/2/7/132712505/2396701.pdfIn PDF document text
    • http://wesubukejegi.iblogger.org/bourne_ultimatum_480p_dual_audio_free.pdfIn PDF document text
    • http://price-list.moscow/banjo_tooie_rom_espaol_n64_androidgzk2g.pdfIn PDF document text
    • https://cdn.sqhk.co/bupitagalir/BjaihfB/nailbiter_comic_review.pdfIn PDF document text
    • https://xososikanezav.weebly.com/uploads/1/3/4/8/134892973/3429788.pdfIn PDF document text
    • http://pycnidwzxc.info/35681002433cy18a.pdfIn PDF document text
    • http://samozanyat.info/rifawakozwfhj2.pdfIn PDF document text
    • https://cdn.sqhk.co/xibidodoko/hhahcqx/vowebejixadurageweto.pdfIn PDF document text
    • http://fiduwil.iblogger.org/papitalomiten.pdfIn PDF document text
    • http://mozuganimaf.66ghz.com/amiga_kickstart_rom_3._1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://betiravel.epizy.com/daxabivakud.pdfIn PDF document text
    • http://bobitemobo.epizy.com/xelazajinusowenupabo.pdfIn PDF document text
    • http://xajejosiwoja.epizy.com/71543521954.pdfIn PDF document text
    • http://ralivapoked.epizy.com/in_my_room_thousand_foot_krutch.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_off0000d490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD490 5524 bytes
SHA-256: c52363a9dd3c190a394c5ec19df3cad60052a37a9af31db299097cf81ab3ca6d
font_01_sfnt_off0000e73f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73F 10704 bytes
SHA-256: 65c16e59be911c1fcb59794f6c7a86630ab3b3a72df2d4431ee58e7aaff07c25

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