Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbf8af0148a63338…

MALICIOUS

PDF

67.0 KB Created: 2021-02-23 12:12:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e92f9bfaad89535a88b411ceaf4706ef SHA-1: 7e87a5bfd222234530e7d6a1a1311765ab3d8e13 SHA-256: fbf8af0148a633384113a6f66ed8b36b325a8a33e60d1fa1217f293003f062f5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/aws?utm_term=marvel+schebler+carburetor+rebuild+kits PDF link annotation
    • http://a1metromovers.com/yojana_magazine_june_20198miaj.pdfIn PDF document text
    • http://naturwow.space/best_certifications_to_get_for_constructionojxap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463825/normal_5fe22b282ed35.pdfIn PDF document text
    • http://fullpisetc.ru/easy_screen_recorder_crack_appxtw02.pdfIn PDF document text
    • http://uplrezina.site/farm_invasion_usa_hack_apkzeb6r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416500/normal_5fd3cac73796a.pdfIn PDF document text
    • http://upsbox.ru/scheduled_caste_certificate_form_punjabd86v1.pdfIn PDF document text
    • http://rakajipof.22web.org/talking_angela_2._5_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453108/normal_5ffc8c1fea203.pdfIn PDF document text
    • http://vezdesami.ru/anonymous_text_to_speech_software1e6ed.pdfIn PDF document text
    • https://cdn.sqhk.co/muribirigim/f0E51id/ludo_champion_game_apk.pdfIn PDF document text
    • http://vigastlens.xyz/em_dash_shortcut_maczavgg.pdfIn PDF document text
    • http://salebox.shop/35381200615ksw58.pdfIn PDF document text
    • http://beweroxaku.66ghz.com/tanojatafuvolabagofawiw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kebanibaru.epizy.com/news_report_on_kerala_floods_2018.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_off0000c827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC827 5296 bytes
SHA-256: 0ef3b56b7f1403a15b66cecabb3acc6dd23d6bf3dab9c412ff03d017ccce7c2e
font_01_sfnt_off0000da33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA33 10832 bytes
SHA-256: 4757d2bbe2b4675cb42e19c9436b5fab739a77d72208dd7ca3c4e6454af74876