Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5016c41bd6202f…

MALICIOUS

PDF

73.0 KB Created: 2021-03-01 05:33:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dff2d32d7cdbe0c71fc740f0f7d2a7b8 SHA-1: e019f91ccd131aab7ceed05eaf5803060e3aa0a2 SHA-256: 7d5016c41bd6202ffdbe1815a7242d82533b2e7626d61466e63519d7da5830c5
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://druttle.ru/award?keyword=what+does+tree+of+life+signify PDF link annotation
    • http://gta-msk.ru/uk_board_games_expo_20202gpou.pdfIn PDF document text
    • http://hurricane1.space/new_animated_movies_2019_listxjdrn.pdfIn PDF document text
    • http://zeboxagekej.sportsontheweb.net/how_to_tell_if_engine_is_running_lean_or_rich.pdfIn PDF document text
    • http://helpforteam.com/video_editor_music_cut_no_crop_apklz8rn.pdfIn PDF document text
    • http://nakozek.mypressonline.com/80809557880.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417990/normal_600beee3664a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425915/normal_602ead16cd604.pdfIn PDF document text
    • http://naturebiolog.fun/wulubxc1xx.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/wusone/vijazawadulidejov.pdfIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/where_is_the_shear_pin_on_a_snowblower.pdfIn PDF document text
    • http://kikanelomer.onlinewebshop.net/52011494167.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/games_2018_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/digadibojopexufob.pdfIn PDF document text
    • http://wutesejib.onlinewebshop.net/98834574107.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/subscribed_share_capital_in_balance_sheet.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_off0000e180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE180 5284 bytes
SHA-256: 2a805b131255f75a56f52e57213fb56c36bd4836d8dd0840f2540efa2334fdc5
font_01_sfnt_off0000f387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF387 10028 bytes
SHA-256: 353a3146b0662428e809500d509e5ed358ac923de59c008ec24a6ff0e77fded1