Malicious PDF — malware analysis report

Static analysis result for SHA-256 74b8fa360fcd8a49…

MALICIOUS

PDF

60.1 KB Created: 2020-10-03 02:46:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: dbae3581a1340b961ca2ed881b035ad5 SHA-1: 62fa30f806e2efea452b463c2bd18f4ed7c273c4 SHA-256: 74b8fa360fcd8a496b185642380c7191b1d9153e5e1f80401337ba3d992c25a0
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.cc/pify?keyword=izaak+walton+lake+burlington+iowa In PDF document text
    • https://site-1036969.mozfiles.com/files/1036969/80974276151.pdfIn PDF document text
    • https://site-1040341.mozfiles.com/files/1040341/xowisepulumatofali.pdfIn PDF document text
    • https://site-1037071.mozfiles.com/files/1037071/laxugitidabupuzojimumese.pdfIn PDF document text
    • http://pefulusat.interporcspain.org/uploads/1/3/0/9/130969198/tikiwo.pdfIn PDF document text
    • http://nugevoz.havenfortots.org/uploads/1/3/1/3/131383813/rubasovijigudilozix.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/f9a605a2-d3f8-40b0-9c3c-ebe276de5584/weberuxaxab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f20a755a-7780-414a-b12c-a14ffae314cf/26254207469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aec0e52a-594d-412b-bf94-a427f63a4b01/dakojazajibepasekired.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ade725a5-856a-4122-8d8d-95fff3819ee3/7824869373.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8078ce76-0e4e-4d1b-a0d8-e83fc7bd7150/70471290895.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75ea461e-786e-4c52-adac-a9402cc04d0c/46856611741.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81d1a62b-8d6b-41c1-8819-f4ba0954b6e7/dezamewoxujetejavusomu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cb3698c-442f-4b2f-892a-be8c5a894f14/10331522851.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_off0000aeea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEEA 4960 bytes
SHA-256: 3ce7a473f2fba8af066b7edfa5151bc8451c3ede045436299327fbc3a1122d49
font_01_sfnt_off0000bffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFFA 10392 bytes
SHA-256: e3c6736c12ce9f02050ded0877ab883da0cc9cccd4629e20ae2c255f25ca531d

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