Malicious PDF — malware analysis report

Static analysis result for SHA-256 54c795c435c09fd3…

MALICIOUS

PDF

38.2 KB Created: 2020-10-05 00:10:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3f4e162b10d77baea274978e20cb8a15 SHA-1: ecf93065591760c2a8c4c399dc8730e04ea6e693 SHA-256: 54c795c435c09fd37c6f6b71ccd37580e1044ec7d21f6c2173ac03d441bbb3f1
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://cctraff.ru/strik?keyword=sandeep+garg+accountancy+class+12+pdf+download In PDF document text
    • http://kimoga.poetryandmemory.com/uploads/1/3/2/7/132712615/doposagen.pdfIn PDF document text
    • http://files.nousworks.com/uploads/1/3/0/9/130969300/wijawinesupizixo.pdfIn PDF document text
    • http://betakuz.batigettes.com/uploads/1/3/1/6/131606218/23be2e33c8a36.pdfIn PDF document text
    • http://xodijo.tarynogormandesigns.com/uploads/1/3/1/6/131606228/mowapusim_lexadasolexon_vasifoxusipul_pomuvuvepalere.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/49531009-d868-4c92-b277-ef590b293fde/xowugebobabelagidosor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7196eb0f-f09b-44ef-9ef0-d7b393a2d97a/weviwoka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c778820-e916-41a7-9364-d096a24b2aca/2782375224.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9108b382-abdc-4edb-a187-763daccb74b1/83453420200.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b06c6e9-17a0-4b74-b236-4d00f2e8fc74/raxisobixakeluwilujo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/447d377e-162b-44d3-a88d-54a82f673bc5/kikefejonadolazodavej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8b93a78-0a11-45b6-b115-cb1a576ad2aa/lukeseguti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46d0c3a3-5bf0-42b3-94b1-764542b3c53d/97735146217.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34733fd3-2828-4baf-8775-78806cd0ca87/37328614321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/0674/1658/files/how_to_reink_an_ideal_100_stamp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/26981670482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/43314762669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7593/5135/files/55791522005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7897/4629/files/how_to_lan_minecraft_mac.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_off0000546d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x546D 5804 bytes
SHA-256: 183c3e773151a3cdd71147c49e622a2772b80a87bc885108db4b7711af01378a
font_01_sfnt_off00006862.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6862 10160 bytes
SHA-256: ba77a7b9a410d6c9f2bc8de365fcb4fd4d557e93d673a698aa1a8ce9e3f95968

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