Malicious PDF — malware analysis report

Static analysis result for SHA-256 69a2086d54ebc812…

MALICIOUS

PDF

64.6 KB Created: 2021-02-13 14:30:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1c3a8be6eb4556958de6a5c8e3698adb SHA-1: 33cb612338de3833c1ba9a1d2cb6133b2bc6d701 SHA-256: 69a2086d54ebc8121b0e97fdb64a04c367b3e87e1820cd18ab92d2795e1d718b
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://crophysi.ru/wix?keyword=free+tiktok+followers+no+human+verify In PDF document text
    • https://laregokirula.weebly.com/uploads/1/3/0/9/130969776/parumokitujemep-lenetanofitipon-zonusoroz.pdfIn PDF document text
    • http://bumaga.bz/baseboards_for_model_railwaysy9qk8.pdfIn PDF document text
    • http://vnatural.space/kart_racing_pro11sej.pdfIn PDF document text
    • https://duzetokip.weebly.com/uploads/1/3/4/4/134404829/dadajatas.pdfIn PDF document text
    • https://geridaradekod.weebly.com/uploads/1/3/1/4/131437552/f22652356db00bb.pdfIn PDF document text
    • http://hurricane1.space/the_boss_baby_in_hindi_full_movie_dovvimo.pdfIn PDF document text
    • http://smeh-mif.space/22174628055hqpfd.pdfIn PDF document text
    • http://pedalini.club/permission_letter_format_for_school_principalz585i.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/woberiz/xurexadubirajixu.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/mahalia_jackson_i_found_the_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/rockstar_games_social_club_slow.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/android_10_sony.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/79226302933.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/lelavowiji.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/ruxakukifilelukoxazapi.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/37718971427.pdfIn PDF document text
    • https://penzu.com/public/a1ea3262In 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_off0000bff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFF2 5280 bytes
SHA-256: 48b45f564a8ba755aae027e60bb5356414fd55806efe6f245c208ee835119178
font_01_sfnt_off0000d1de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1DE 10408 bytes
SHA-256: 974c9413edd1d40a1a76e965dea8d3b406a47aae855f0de7117f12b07db03eea

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