Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d3b3e4cbd25da6a…

MALICIOUS

PDF

73.2 KB Created: 2021-02-15 01:11:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8bc3dc3f2be9559f7436ae79fcf0317b SHA-1: b874b92399b1c93d9f05f03ef37f2a9274ae0253 SHA-256: 3d3b3e4cbd25da6a637a5667e22b8c53ef7525ad5509eda58d1aab4d6d869b17
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/aws?utm_term=basic+naval+architecture+ship+stability+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451950/normal_6012b179244a4.pdfIn PDF document text
    • http://labiosdewonda.com/632509611261y2vh.pdfIn PDF document text
    • http://wssummer.space/mantra_pushpam_in_telugu7rihd.pdfIn PDF document text
    • http://silvanozito.online/92156129812uffso.pdfIn PDF document text
    • http://ooovseanalizi.ru/b._a_k_full_form5c28f.pdfIn PDF document text
    • http://ductsunlimitedins.com/fanozajedepesejizevasa9w1vh.pdfIn PDF document text
    • http://allwoman.site/apaharan_movie_songs_songspknh8vw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480142/normal_5ff5ed0f7b52c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366007/normal_5fffea8ee8eca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420248/normal_5ff40d6b8e54d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463298/normal_5ff4ef2116209.pdfIn PDF document text
    • http://andyhongdigital.com/betway_apk_latest_versioncqjky.pdfIn PDF document text
    • https://cdn.sqhk.co/dubagelojuwe/UrXa77o/49557825644.pdfIn PDF document text
    • http://raxajifiwovoj.iblogger.org/lagu_film_autumn_in_my_heart.pdfIn PDF document text
    • http://homebig.space/kuranetojexobobupet43tqq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dulubuli.rf.gd/vades.pdfIn PDF document text
    • http://lojogonofar.rf.gd/math-_aids_combining_like_terms_answer_key.pdfIn PDF document text
    • http://wopidexojabin.rf.gd/bye_bye_blackbird_score.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_off0000e264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE264 5596 bytes
SHA-256: 9914f8fcda048567b4a605933b52219fa9b41d5dfbd6b558f849b2f0f4ce5c3b
font_01_sfnt_off0000f56a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF56A 10048 bytes
SHA-256: 285c20a7e41a9a592deae61df9b765d75766f1bfdbf3c74ceda0f2a47cff3c6c