Malicious PDF — malware analysis report

Static analysis result for SHA-256 09b5ceb2f90696d1…

MALICIOUS

PDF

69.7 KB Created: 2021-02-26 18:20:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7f28cd70abaa94378a42baac4eb8d579 SHA-1: cb754b1a4d63146e1853dee7e6fcedc3d364bd95 SHA-256: 09b5ceb2f90696d1ed35c6085e29febc03418bbe9359af0a08fae74c1bb089cf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/wix?keyword=6.5+practice+b+answers PDF link annotation
    • http://wifunagidoli.mypressonline.com/wobipiwim.pdfIn PDF document text
    • http://fifamarketbot.com/togagegitakoyexc.pdfIn PDF document text
    • https://xejevegufukax.weebly.com/uploads/1/3/0/9/130969627/fadovegan.pdfIn PDF document text
    • http://radanukodufam.22web.org/concepts_of_programming_languages_11th_edition_answers.pdfIn PDF document text
    • http://idealica-italiaufficiale.site/tanatologia_veterinaria10yk1.pdfIn PDF document text
    • https://cdn.sqhk.co/firumefetev/jjWF5gg/girupolawilizatet.pdfIn PDF document text
    • http://jusukigib.sportsontheweb.net/old_craftsman_table_saw_motor_repair.pdfIn PDF document text
    • https://cdn.sqhk.co/pibexezases/iiihhgD/rabavamudavadizuwoguzet.pdfIn PDF document text
    • https://cdn.sqhk.co/jatizaru/pjhifhh/change_lock_screen_wallpaper_android_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/benadujeju/bAly1jd/72818815096.pdfIn PDF document text
    • https://cdn.sqhk.co/towojutal/IibhiSY/japaxalotil.pdfIn PDF document text
    • https://boluzevorekov.weebly.com/uploads/1/3/1/3/131384542/c7824d7940.pdfIn PDF document text
    • http://bluetea.space/game_captain_tsubasa_android_ppsspp4bm0e.pdfIn PDF document text
    • https://wovupidej.weebly.com/uploads/1/3/4/6/134687137/6338d.pdfIn PDF document text
    • https://sozizupisez.weebly.com/uploads/1/3/1/8/131872239/baraj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/neporezofov/dakuf.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/bhagvan_pan_bhulo_padyo_lyrics.pdfIn PDF document text
    • http://bopebafelakab.rf.gd/demonirat.pdfIn PDF document text
    • http://jiporiri.rf.gd/56478103493.pdfIn PDF document text
    • http://muxawij.rf.gd/who_has_sheets_on_sale_this_week.pdfIn PDF document text
    • http://pulutugorivexek.atwebpages.com/zenuxov.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_off0000d3ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3EA 5340 bytes
SHA-256: 8d653cb1d0ad54e50e498aae8a732615302c0efeef21e71d7ee39380721227ae
font_01_sfnt_off0000e635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE635 10488 bytes
SHA-256: 2bfcf27d946bc11597e6007d7c908200a06e139d3f69971ec2980036cd4db2ff