Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0670d757c66811a…

MALICIOUS

PDF

44.3 KB Created: 2020-08-21 20:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73605759a900435a8147ebdaeb244d7d SHA-1: 3c4ecf60fd4aa5ba5ef5c95f2d7a52f452428ac1 SHA-256: c0670d757c66811ab013b4545035e43433291a0bdf81f4a082fa985865b1f7a2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, many of which point to external PDF files hosted on various domains, including Shopify. One URL, https://ttraff.cc/pify?keyword=homemade+gift+card+holder+template, is identified as a malicious redirector. This suggests the document is part of a link farm or SEO manipulation scheme, potentially leading users to malicious sites or content. The presence of numerous links and a malicious redirector indicates a high likelihood of an attempt to distribute malware or conduct phishing.

Heuristics 3

  • 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.
  • 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=homemade+gift+card+holder+template
    • http://bisaja.napacommercecenter.com/uploads/1/3/1/3/131384429/sunanop-vowojavuziva-dirixomonose-fijinigikibag.pdf
    • http://xopovesij.harvestandplate.com/uploads/1/3/0/8/130874431/fekituvurimub.pdf
    • http://files.mhrspl.com/uploads/1/3/1/6/131606186/kadidimo.pdf
    • https://cdn.shopify.com/s/files/1/0439/3651/4216/files/alcoholismo_en_adolescentes_tesis.pdf
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/jividelajororaturadexuko.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/23688046073.pdf
    • https://cdn.shopify.com/s/files/1/0440/5084/1750/files/nifojefeni.pdf
    • https://cdn.shopify.com/s/files/1/0432/0247/8237/files/lutavud.pdf
    • https://cdn.shopify.com/s/files/1/0447/0826/6137/files/balarilang_filipino.pdf
    • https://cdn.shopify.com/s/files/1/0429/8306/3715/files/3941717494.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/fixawinitis.pdf
    • https://cdn.shopify.com/s/files/1/0438/7989/1099/files/arabisch_schreiben_lernen_bungen.pdf
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/english_grammar_book_for_competitive_exam_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/brothers_video_song_tinyjuke.pdf
    • https://cdn.shopify.com/s/files/1/0437/9007/4016/files/xobazovobil.pdf
    • https://cdn.shopify.com/s/files/1/0429/3813/8783/files/muruzadulewiguwosediraxok.pdf
    • https://cdn.shopify.com/s/files/1/0433/6369/6799/files/talotelip.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f9e.bin
b2ce95db13a3b97822aadad378c00cdc94faf92147a80af0402a9f9611470795
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9E 5352 bytes
font_01_sfnt_off000081ae.bin
bdfa06052e9dfa5ad6cef008a1c56b25cd3903e110576d0605763babd373325a
pdf-font-stream PDF embedded font (sfnt) at offset 0x81AE 10240 bytes