Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2932f9cc457ed9…

MALICIOUS

PDF

44.5 KB Created: 2020-08-18 21:10:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8cfaaac4c03edabb27f39f7c934cb96d SHA-1: 5d321f6b48cb34277449ac1e88d6ae9184237da9 SHA-256: 1e2932f9cc457ed947874420fb749d327dad00bf32356adf11308b03c73b768d
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link that redirects to a malicious URL, disguised as a download for cracked software. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the redirector. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to host further malicious content. The presence of a 'download button' lure reinforces the social engineering aspect.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=audio+converter+full+crack
    • http://files.caninebehaviorsolutionsandobedience.com/uploads/1/3/0/8/130874583/doratenexufox.pdf
    • http://files.goodhorsehealth.com/uploads/1/3/0/9/130969966/0264e95.pdf
    • http://files.luciademarcoillustrazioni.com/uploads/1/3/1/4/131437983/245eaab86728a8.pdf
    • http://mubaliror.coolgeekzatl.com/uploads/1/3/2/7/132741420/2461310.pdf
    • https://cdn.shopify.com/s/files/1/0432/1034/2559/files/77560670786.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/nadiligifikubila.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/90899259028.pdf
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/hermann_hesse_narcissus_and_goldmund.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19189676900.pdf
    • https://cdn.shopify.com/s/files/1/0431/4474/1024/files/zetotugik.pdf
    • https://cdn.shopify.com/s/files/1/0431/7816/4387/files/54915270897.pdf
    • https://cdn.shopify.com/s/files/1/0440/5464/2853/files/dimapiduxuwanu.pdf
    • https://cdn.shopify.com/s/files/1/0440/2026/9221/files/notisoluxebibudot.pdf
    • https://cdn.shopify.com/s/files/1/0435/1747/7019/files/xijipopijituwigidovijufu.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_off000070e6.bin
35874de37055799a08979a4835fdcf686ef1d21015e0bff34366655b0adecfa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E6 4952 bytes
font_01_sfnt_off000081cd.bin
4ce29537b27ff8fe436de59b7ab3b446b3d6e5ab014bd6ece50e2036edbb59b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81CD 10412 bytes

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