Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc654f8a6e934799…

MALICIOUS

PDF

36.9 KB Created: 2020-10-10 14:24:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a219f94cfef34f22779a2fd244b85f92 SHA-1: 69e1cae2cde3f5685665fb9e36249010029af7e8 SHA-256: cc654f8a6e9347994650ab6ce741741268cdee028c3ef94dc336c13f71e85f12
154 Risk Score

Malware Insights

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

This PDF file contains a link to a known malicious redirector, 'ttraff.club', which is likely used to funnel victims to a phishing or scam page. The document also hosts a large number of other PDF files on Shopify domains, suggesting a link farm or SEO poisoning attempt. While no scripts were directly extracted, the presence of embedded URLs and the malicious redirector strongly indicate a malicious intent to lure users to harmful 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.club/pify?keyword=supply+memory+error+m402n In PDF document text
    • https://site-1037866.mozfiles.com/files/1037866/netaromufuzasekimawexi.pdfIn PDF document text
    • https://site-1039487.mozfiles.com/files/1039487/43090171301.pdfIn PDF document text
    • http://bugefaf.prhsboyssoccer.com/uploads/1/3/1/6/131637409/fasazifaraju.pdfIn PDF document text
    • http://files.marytolan.com/uploads/1/3/2/7/132740355/6142614.pdfIn PDF document text
    • http://nikuk.meditationwithmish.com/uploads/1/3/2/6/132695424/vedidasusexeb_bugezex.pdfIn PDF document text
    • http://ruwin.gnatrainingacademy.com/uploads/1/3/0/7/130775476/5899548.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/1/0427/6797/4556/files/mowakobejoxawexujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1538/7811/files/no_child_of_mine_real_story.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1169/7814/files/scoby_for_sale_melbourne.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0105/2836/files/21545087991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/9617/2453/files/kealing_middle_school_orchestra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5720/1820/files/81622159198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0917/files/saturn_sl2_ignition_switch_bypass.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_off000052b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52B0 5144 bytes
SHA-256: 8e4aad4d789e2b6ecbc44d18bb764488122b4724965d0c21be01dbdf7461e85d
font_01_sfnt_off00006428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6428 10240 bytes
SHA-256: 41a9f9e7359d41f79bfd0e137207782bf089e6f4022f1f959e56ce95e5eb9559

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