Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5d9ca59db46b31b…

MALICIOUS

PDF

68.4 KB Created: 2021-01-31 09:09:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 03a1d476022ebf64f086fbcebfbed805 SHA-1: e1907549ed2d944824bf02cc9848793a9d25e147 SHA-256: a5d9ca59db46b31bd279cf5e1c203ed08b2dae4ee3c577c8ff9fb93720cc88ae
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://baarspo.ru/wb?keyword=carrom%20board%203d%20mod%20apk PDF link annotation
    • https://cdn.sqhk.co/wudawagirus/arZjjhc/basketball_mini_hoop_shoot.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/eieHHhf/solar_system_super_simple_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/zibojaje/6XIVpgj/vodibanenutulewuxakevewa.pdfIn PDF document text
    • http://kudukulid.22web.org/dhakad_chora_2_full_movie_free.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwopazeg/iegiBgf/feudalism_game_mobile.pdfIn PDF document text
    • https://cdn.sqhk.co/pufuxarabo/Fqhj6ja/monster_race_series_get_lucky.pdfIn PDF document text
    • https://cdn.sqhk.co/rifojimuna/ihfiaha/mikijipaposutul.pdfIn PDF document text
    • https://cdn.sqhk.co/jejefudebuxi/nRijaR8/absolute_rc_plane_simulator_unlock_all_apk.pdfIn PDF document text
    • http://pizidojokinesa.66ghz.com/73602303951.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/h9aJPpR/hello_dolly_characters.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/buwosevax/xelufobige.pdfIn PDF document text
    • http://lanotiwigizoxep.epizy.com/oxidation_numbers_and_redox_reactions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/trial_balance_exercises_with_answers.pdfIn PDF document text
    • http://borinalujid.epizy.com/71653991358.pdfIn PDF document text
    • http://bosirizowu.rf.gd/8806835857.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_off0000cf12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF12 5168 bytes
SHA-256: e0fab229c928f9bcc1d3f65245af7832ae083f72c122b055876461ef85c586ca
font_01_sfnt_off0000e084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE084 10696 bytes
SHA-256: cc2dfebb65552fab216f4a0ee8355d1084182439b044b1480a36a589c013b4c9