Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd0d7e680c723bc2…

MALICIOUS

PDF

54.8 KB Created: 2020-10-05 07:20:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 1e4514f31c752c6c9a177e046d47edbf SHA-1: e28ea2fc55b292211312087435660ab2b344131b SHA-256: dd0d7e680c723bc2d1afceb5cb280488f4197e070429c6534a9896d17858340d
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.club/pify?keyword=kamen+rider+ouja+genocider In PDF document text
    • http://vajuxop.siam-energy-therapies.com/uploads/1/3/0/8/130814340/5af82.pdfIn PDF document text
    • http://zedunidak.erspamermusic.com/uploads/1/3/2/7/132741073/03339da.pdfIn PDF document text
    • http://files.naturesalternativesohio.com/uploads/1/3/1/4/131438477/nekuridoluzove-xurix-zekonoraw.pdfIn PDF document text
    • https://site-1037188.mozfiles.com/files/1037188/daloxakomimabilenepigiw.pdfIn PDF document text
    • https://site-1043669.mozfiles.com/files/1043669/96267440072.pdfIn PDF document text
    • https://site-1036772.mozfiles.com/files/1036772/sutomerowowaj.pdfIn PDF document text
    • https://site-1038916.mozfiles.com/files/1038916/tewurelimepij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2161/0403/files/rudolf_virchow_cell_theory_date.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5337/4874/files/demain_des_laube_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/8911/3503/files/how_to_kill_glowing_wendigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5926/0821/files/66078578673.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52e8c08d-2aab-49bb-bb89-ac113813bc15/winezobimalatoporike.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71725cc9-d665-47ca-a8a1-04ca339568d0/74698338255.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e29dc2f9-c289-495b-861a-d1621e352df6/nemuxolumoxiweru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64e60150-a254-4bcc-9aab-2b1e5465f55c/99855762958.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 16744 bytes
SHA-256: 74815b915c2dc57d3af083d8b819aa371c9889ba74d8815dc72d754587ca2808
font_01_sfnt_off000098e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E8 5092 bytes
SHA-256: 545fdc2e1b8901e3ab9038ca0d7725a7d06ecb433cba5f82cc5414a1b05ca215
font_02_sfnt_off0000aa32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA32 9972 bytes
SHA-256: 12ab29e7c1c8b174e6c5ab420f7b8d7bcdb9dfbb309b79c8c74a02b6217cbe6a

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