Malicious PDF — malware analysis report

Static analysis result for SHA-256 69a1e2294380682d…

MALICIOUS

PDF

67.8 KB Created: 2020-09-02 19:44:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dd93d220e2b85ebef7249bc23cb9045 SHA-1: 1a91f9f047e480d92a673df87360dc8caead371e SHA-256: 69a1e2294380682d013e916762bd2d377e2f7652fa1dbdf3d2e97e6c21535728
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded links that point to known malicious redirector infrastructure, specifically `https://ttraff.cc/wix`. The document body, though partially corrupted, contains text related to a TV guide and also includes this malicious URL, suggesting a lure to redirect users to potentially harmful content. The presence of numerous other PDF links further indicates a link farm or SEO poisoning attempt to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/wix?keyword=tv+guide+local+listing+for+manteca+ca
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0439/6548/1118/files/43709954314.pdf
    • https://cdn.shopify.com/s/files/1/0437/3735/0309/files/gezigufovizomir.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/28095234936.pdf
    • https://static.usrfiles.com/ugd/b8c837_6f6f58cfee424e95ae9ed891783f35a6.pdf
    • https://static.usrfiles.com/ugd/a4e402_4a9dc006d57147eaab355dad2354cf75.pdf
    • https://static.usrfiles.com/ugd/b8c837_022441e0a6994c79b7f1fd4cfe042bb1.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e75a66ee6744e128087b1a2a042d7f4.pdf
    • https://static.usrfiles.com/ugd/6924eb_68791aad0d8c4b67b6fbf2fd9d643cf6.pdf
    • https://static.usrfiles.com/ugd/7ff653_61c2d4707f864a83a92ba12dd9ca1975.pdf
    • https://cdn.shopify.com/s/files/1/0433/5117/9423/files/90452524240.pdf
    • https://cdn.shopify.com/s/files/1/0429/2201/6934/files/miperolex.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5425/files/payment_checkout_page_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bewasovenajuwawofitef.pdf
    • https://cdn.shopify.com/s/files/1/0435/2661/9288/files/somixezugo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c211.bin
14f761c5a3e6b1766e2db4010f6fc95601f6483294b6f2a9e21ea6fe0820a441
pdf-font-stream PDF embedded font (sfnt) at offset 0xC211 5352 bytes
font_01_sfnt_off0000d43b.bin
08b628a7e039939d752e8df9d1fce3feb28f2495334a509a4a44e496be9edf91
pdf-font-stream PDF embedded font (sfnt) at offset 0xD43B 14828 bytes