Malicious PDF — malware analysis report

Static analysis result for SHA-256 f287929518477641…

MALICIOUS

PDF

73.9 KB Created: 2020-12-21 05:29:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 0f7ab3b965cca070b62e00da2e2892d4 SHA-1: 12b5b748cf1d3689a0542697a9ad638b50391558 SHA-256: f28792951847764119f9495f7456d326152cf9dcd9bf5a97944fdea84193cc1b
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://traffine.ru/wb?keyword=metropcs%20plans%20and%20phones In PDF document text
    • https://tavekudu.weebly.com/uploads/1/3/4/6/134631894/652433.pdfIn PDF document text
    • https://katolafafesol.weebly.com/uploads/1/3/4/4/134479470/9505988.pdfIn PDF document text
    • https://vekeliludodim.weebly.com/uploads/1/3/4/7/134745250/a7804a.pdfIn PDF document text
    • https://mupawume.weebly.com/uploads/1/3/4/3/134365579/9398107.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/faa7fa61-ae69-40f8-a9c4-9d2bb1eb3661/princess_cruises_obstructed_view_cabins.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0969cd4-4e2b-4545-a842-d5bf9306fc27/kuxibelexoxelovugular.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5b8130a2757459b03e463/t/5fca52ee1852f5564613e2db/1607095023351/josiwugemeju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c84326e5-fb4a-40bc-abab-81a53d748ce7/sizunobevifagajokesumozem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2daecb5-ac04-4651-ba1f-effe180d17c1/protein_synthesis_worksheet_answer_key_part_a.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4ce616609fd0ee7aa78df/t/5fd6581e13a48350e810e58e/1607882783294/total_bursary_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/chashme_baddoor_full_movie_720p_extramovies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6a8de9d-968b-4a46-8c5f-76385a40a035/6583459648.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e454bdd1-8bd1-493f-b1da-904b8b93c790/c_tic_tac_toe_ai.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/dofavuserok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c5702b9-712a-41f1-b1d3-85a8b6a7e9f5/a_frozen_flower_200.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_off0000e4ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4CA 5168 bytes
SHA-256: 45be3d773be5c83907f63e526d1f6be0e328e7bc84bff9c72f7b7bda5fcfe069
font_01_sfnt_off0000f65b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65B 10684 bytes
SHA-256: c08244426146f2f1d90546b02a4e80be0c48448485049b8b4e53a11167054a0b

Open this report in the interactive analyzer, or submit your own file for analysis.