Malicious PDF — malware analysis report

Static analysis result for SHA-256 2acee6e712e7ec62…

MALICIOUS

PDF

79.3 KB Created: 2021-03-03 18:39:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1fc41e4f660062c00a106444a0ffd248 SHA-1: e900ce9bc818279241b87cb94466a8ab345eb02d SHA-256: 2acee6e712e7ec62e594a4898c5fc4fa34a38d6f51bf9c43afb79938cda8027a
196 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
  • 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.
  • 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://resalured.ru/123?utm_term=plantronics+voyager+pro+hd+vs+5200 PDF link annotation
    • https://cdn.sqhk.co/masezupusi/uhjohbJ/steam_sales_dates_history.pdfIn PDF document text
    • https://vidiwubiref.weebly.com/uploads/1/3/0/8/130874646/7767481.pdfIn PDF document text
    • https://gufulesem.weebly.com/uploads/1/3/4/6/134698375/e4a2743ce87.pdfIn PDF document text
    • https://cdn.sqhk.co/pobijejok/ha2gcgc/view_subscribers_in_wordpress_blog.pdfIn PDF document text
    • http://kazexajisodibu.medianewsonline.com/honda_civic_ek_service_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/vizakifito/dhihbji/notip.pdfIn PDF document text
    • http://rijewomel.scienceontheweb.net/how_to_use_solver_ti_84_plus_ce.pdfIn PDF document text
    • http://roxelejabojafe.scienceontheweb.net/punajezepisoweku.pdfIn PDF document text
    • https://cdn.sqhk.co/gizadomoto/5C5UHYm/space_jam_song_before_game.pdfIn PDF document text
    • http://fomijegi.mypressonline.com/69051507352.pdfIn PDF document text
    • https://migijulomav.weebly.com/uploads/1/3/5/3/135394851/1555013.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/bubeto/meselefuvugulutibuperi.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/answer_sheet_toeic_ets.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/66957221006.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/90087775056.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/royal_rife_frequency_list_for_parasites.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/burger_3d_model.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/transformers_prime_oc_x_airachnid_fanfiction.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_off0000f794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF794 5896 bytes
SHA-256: 04195a854a21fdc35de70288c09453a06902c54a4368476631a9a88214dac530
font_01_sfnt_off00010bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BB2 10720 bytes
SHA-256: 933f48fe6b4954826a206815fe3c25bdc0c327c673e0c1e2026f703c69313c26

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