Malicious PDF — malware analysis report

Static analysis result for SHA-256 259ea0607f1e16f3…

MALICIOUS

PDF

76.9 KB Created: 2021-02-15 22:23:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: e6a8230327dd0bae0368bdf3143270f7 SHA-1: 94576b368b149438cd5368260dcdee4b75695b52 SHA-256: 259ea0607f1e16f3c0341b113a38c990989508fa1fe0ff1485bd8b315096cb0d
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, contains text suggesting it is a lure for downloading content. The numerous embedded URLs, many hosted on disposable domains, further support the phishing and malware distribution pattern. No scripts were extracted, but the PDF structure itself is indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wb?keyword=libro%20la%20iliada%20pdf%20descargar PDF link annotation
    • https://cdn.sqhk.co/xexisini/hDieie6/bloodsport_1988_movie_poster.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutesilo/KNjfDjc/ping_pong_rules_around_the_net.pdfIn PDF document text
    • http://com-signto6.xyz/automated_control_systemsy4wpt.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/tidljcA/move_whatsapp_chat_history_from_android_to_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/lakuziwi/CIgh0if/aquapark._io_app_review.pdfIn PDF document text
    • https://cdn.sqhk.co/vumatoxikom/jaNlhem/76030616478.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/7uIXw0o/9622436450.pdfIn PDF document text
    • https://cdn.sqhk.co/zisubiziwu/jh3Tjfp/14919663009.pdfIn PDF document text
    • https://cdn.sqhk.co/sipebililofo/bgeNlgd/zupirabanavi.pdfIn PDF document text
    • https://cdn.sqhk.co/nokulebepoba/jedsgd7/50327076277.pdfIn PDF document text
    • http://semengergel.ru/alive_in_shelter_18_dlc_free_downloads68mp.pdfIn PDF document text
    • http://olymptrade.buzz/48843170975dy1vt.pdfIn PDF document text
    • https://cdn.sqhk.co/ragekasa/4aCibhh/sapov.pdfIn PDF document text
    • https://cdn.sqhk.co/lerapuraroke/ielkvNx/jupar.pdfIn PDF document text
    • http://winclean-shop.space/mulixefigasemakijukvdsjl.pdfIn PDF document text
    • http://helplnstagramoffice.com/xabogewokawonuvilogoxita3p2bb.pdfIn PDF document text
    • https://cdn.sqhk.co/kawiwitifa/jAlghfm/short_african_hairstyles_haircut.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/fgjiigd/39631349281.pdfIn PDF document text
    • http://lifeeuro.info/169289375083tssf.pdfIn PDF document text
    • https://cdn.sqhk.co/julukimesof/bp7jhhi/dc_legends_fight_superheroes_mod_apk_download.pdfIn PDF document text
    • http://accueilcmb.com/ss_316_chemical_compositiongehah.pdfIn PDF document text
    • https://cdn.sqhk.co/sixitigoxeto/iDWghhd/easy_song_lyric_quiz_questions.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_off0000ec32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC32 5404 bytes
SHA-256: 4015104009c9c36415c8d04f6bcfdf643f4d0b022a58daa270f701bf380139e3
font_01_sfnt_off0000fea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA2 11672 bytes
SHA-256: 956b001301637769b02ef3a6c37501ffdfb30f2d8f58f65d69c5bfdf07f32edc

Open this report in the interactive analyzer, or submit your own file for analysis.