Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f2ad43fa60182ea…

MALICIOUS

PDF

74.9 KB Created: 2021-03-01 19:47:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: aab6453a08478b8cd834bd0a08e90ee9 SHA-1: f2d58253d8b46a4f8575b95a2909076e49a41d17 SHA-256: 8f2ad43fa60182ea4c1eb2e73ecdb6dc7a8f590d9a0013a20c2659ae6bc85e36
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://seumenha.ru/award?keyword=couples+painting+with+a+twist+near+me PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4411932/normal_600265b2231f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380691/normal_5ff4df3934958.pdfIn PDF document text
    • http://liketsven.xyz/15080611401xvyqu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369766/normal_5fd7d44fb5cc4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484821/normal_5fec01406e837.pdfIn PDF document text
    • http://funseeds.site/free_powerpoint_greeting_card_template1j22m.pdfIn PDF document text
    • https://cdn.sqhk.co/mafowixodi/0ibji3e/juwijifojezatozi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369660/normal_6035f176bbc80.pdfIn PDF document text
    • http://filmera.ru/asge_guidelines_surveillance_colonoscopy7b1y9.pdfIn PDF document text
    • http://dkblogin-de.com/metformin_xr_missed_dosexr992.pdfIn PDF document text
    • https://cdn.sqhk.co/senogewuki/hfgdhgv/barber_shops_open_on_sunday_in_detroit.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/fakuguvil/ansys_fluent_cfd_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/cgs_unit_of_force_full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/fishing_hook_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/citra_emulator_pokemon_games.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/2019_tamil_movies_songs_in_tamilrockers.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/blend_s_op_piano_sheet_easy.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/3d_background_video_hd.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_off0000e86c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86C 5232 bytes
SHA-256: 8e9d1dfbdb823165734e6763ad454862f936e2e0caf916dd1959c79241fc53e8
font_01_sfnt_off0000fa19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA19 10652 bytes
SHA-256: dcf264335dc38525b9a25694d1bdfced717353426eb65d5f0ae87fa0785340af