Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1b08309d568c15f…

MALICIOUS

PDF

72.5 KB Created: 2021-02-28 18:04:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4cfc4d1e444f3a4f9ee79477ab8162da SHA-1: f8f98bc297d77097377c2057ecee1fad2ef925d0 SHA-256: f1b08309d568c15f58f33490de273d7a99c13dea915b24c9a8e185dd87d15dcc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://dugedepap.ru/wb?keyword=for%20dummies%20series%20book%20list PDF link annotation
    • https://lefafikof.weebly.com/uploads/1/3/0/9/130969708/jatigoxeje-tiwosupoguxet.pdfIn PDF document text
    • http://pimifawimonidij.mywebcommunity.org/user_stories_examples_with_acceptance_criteria.pdfIn PDF document text
    • http://kuxufijum.iblogger.org/bamimogakemudukan.pdfIn PDF document text
    • https://cdn.sqhk.co/velomegu/dOzD2jj/lego_movie_2_movie_maker_instructions.pdfIn PDF document text
    • https://cdn.sqhk.co/dijowasedop/oVWWqgi/goodreads_sign_in_with_facebook.pdfIn PDF document text
    • http://mijuxub.66ghz.com/spider_man_cartoon_maker_free.pdfIn PDF document text
    • http://dasaburaxad.22web.org/rapeketepeki.pdfIn PDF document text
    • http://zawirimo.22web.org/laxanokavovavix.pdfIn PDF document text
    • http://wapadax.scienceontheweb.net/45001112359.pdfIn PDF document text
    • https://cdn.sqhk.co/bopesajan/dhe4if2/who_wins_cash_days_on_street_outlaws_2019.pdfIn PDF document text
    • http://golesaluwo.66ghz.com/mamowanepejofuduledowi.pdfIn PDF document text
    • https://cdn.sqhk.co/worupageke/iib3Ugd/70852424917.pdfIn PDF document text
    • https://cdn.sqhk.co/nefakovuwot/Pghhcot/anti_hero_literary_definition_and_examples.pdfIn PDF document text
    • https://regogugone.weebly.com/uploads/1/3/4/8/134891767/3925433.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://genufewewirim.rf.gd/43237938648.pdfIn PDF document text
    • http://mivapizin.epizy.com/jufovazunak.pdfIn PDF document text
    • http://tewilojejesuj.epizy.com/attachment_style_theory.pdfIn PDF document text
    • http://lusalelafujijo.epizy.com/score_sheet_sample.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_off0000dd77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD77 4920 bytes
SHA-256: d88693055b6d95f0a1f701a370ba107f4245b76ed2430a5e51c9dd5f81753519
font_01_sfnt_off0000ee1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE1E 11080 bytes
SHA-256: 2793848075733b5026878359e492eeb467423237866b44fed3bffa1ecc8fbefb