Malicious PDF — malware analysis report

Static analysis result for SHA-256 6567ff0affef28b8…

MALICIOUS

PDF

68.1 KB Created: 2021-02-26 10:15:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0974c5cc4b64a517fc110f03daaf8db1 SHA-1: 309ba3b5b5fe010eca58f733fdf9f958456e6c53 SHA-256: 6567ff0affef28b882edd697b77ed273fe9f8b5accce0902cff6743fa64d094d
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8294

Heuristics 4

  • 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
  • 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://leonvi.ru/award?keyword=the+highwaymen+movie+songs PDF link annotation
    • http://usesalle.xyz/23703584593qxfe4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379611/normal_5ff4896312a6d.pdfIn PDF document text
    • http://idealica-it.website/arctis_7_best_equalizer_settings_for_gamingq0qax.pdfIn PDF document text
    • http://es50off.pro/femom4yycc.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/vgjfuge/car_mechanic_simulator_2018_shopping_list.pdfIn PDF document text
    • https://cdn.sqhk.co/sovajepuxe/JVwgdja/torque_lite_obd_wifi.pdfIn PDF document text
    • https://cdn.sqhk.co/gabadifofibo/jkgcRic/real_drift_car_racing_mod_apk_happymod.pdfIn PDF document text
    • https://cdn.sqhk.co/dubagojovo/gcCaByZ/local_parkour_gyms_near_me.pdfIn PDF document text
    • http://zasoremejoka.iblogger.org/74488906120.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449009/normal_6023f128d51a0.pdfIn PDF document text
    • http://it50discount.pro/fotesulowebugafjv16b.pdfIn PDF document text
    • https://cdn.sqhk.co/letonolomo/bjePPuy/wuligewaru.pdfIn PDF document text
    • https://cdn.sqhk.co/xewafazuk/0vhgWOo/gsmarena_pixel_4a_compare.pdfIn PDF document text
    • https://cdn.sqhk.co/tamejenonisi/jd9YRl4/92858633183.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385214/normal_6013e75b01231.pdfIn PDF document text
    • http://tameeniraq.com/66200505463wbh1z.pdfIn PDF document text
    • http://doxugivo.22web.org/gudugilejulikurisizebogi.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/Ddgc2ih/nascar_speedpark_coupon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xofebobijo.epizy.com/bharti_infratel_annual_report_2017-_18.pdfIn PDF document text
    • http://bemuvubovewe.epizy.com/32422331185.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA1 5176 bytes
SHA-256: c89a8337dceecad1264264d70058f76762bba7f96e32eebbf10324561838fad3