Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2a265f603fe0fc3…

MALICIOUS

PDF

72.5 KB Created: 2021-02-11 15:10:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2c9e7a901bf9a06150342ffd59523cb8 SHA-1: 242bb0b0ead48d6beb07a73882249e7648475577 SHA-256: f2a265f603fe0fc3da5de8e5fa0047561c2c83b8cdc135f014c32b3b64d5bd78
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=soccer+heads+swf PDF link annotation
    • http://meetsol.xyz/zizurijufevoloxuhvrnr.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/geicgin/best_romance_books_for_teens.pdfIn PDF document text
    • http://mrt-zdes.ru/54704154929hxwiq.pdfIn PDF document text
    • https://cdn.sqhk.co/gudijupimeb/bgijhgj/download_web_browser_apk.pdfIn PDF document text
    • http://artemk.ru/8394837765598e9q.pdfIn PDF document text
    • https://memefuzagimo.weebly.com/uploads/1/3/4/6/134612336/rabakis.pdfIn PDF document text
    • http://on-arenas.com/sejetasoxoxomuaft8.pdfIn PDF document text
    • https://zabaparadasikid.weebly.com/uploads/1/3/4/3/134317604/zefixa_xesejopawi_subemilirama_jodat.pdfIn PDF document text
    • http://hempmap.ru/cara_logout_bukalapak_androidulhip.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/jTjhhe2/disorderly_conduct_charge_in_arizona.pdfIn PDF document text
    • https://cdn.sqhk.co/mewixamok/i27iVhh/south_park_bouncing_balls_song.pdfIn PDF document text
    • https://zukodefikarux.weebly.com/uploads/1/3/4/4/134498552/nelokitedu-tikedokepigano.pdfIn PDF document text
    • http://ppl-nutrshopfit.website/zombie_sniper_apk_free_downloadv16re.pdfIn PDF document text
    • https://dolilugufup.weebly.com/uploads/1/3/0/7/130776220/jarogebosomo_labave.pdfIn PDF document text
    • http://support-copyrighthelpservice-about.com/arduino_rgb_led_strip_without_mosfetzmkid.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/cJiisBo/64888607083.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/ajjiaAn/word_finder_spanish.pdfIn PDF document text
    • http://allmedbook.com/small_business_loans_for_veterans_spousest48ax.pdfIn PDF document text
    • https://cdn.sqhk.co/gadujotev/Iji2nLf/22231278667.pdfIn PDF document text
    • http://pitushok.space/zefezanupevupatodunilefo2d5kq.pdfIn PDF document text
    • http://help-verification.com/johnson_and_johnson_annual_report_19999dzdg.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_off0000e049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE049 5272 bytes
SHA-256: 844e4f5600a961d988e5a0b289ece26b1b5688c77f64e1ce8c55e7789c3bcdb9
font_01_sfnt_off0000f244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF244 10184 bytes
SHA-256: c0c7dc4a7982b23d97df59c117b956e611265d95d06e4b280f7550723fe2b629

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