Malicious PDF — malware analysis report

Static analysis result for SHA-256 416e64febe151311…

MALICIOUS

PDF

45.8 KB Created: 2020-08-29 19:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44d1dceb05b42f9117ea1a499a994ab0 SHA-1: 422894455e319b91b87dab9a3e77fcd712443d46 SHA-256: 416e64febe1513110b0cf8d78560011c70ccc1d0a4597f0b91fbd9adb8d91920
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one pointing to a known malicious redirector. The document body, though partially corrupted, includes text suggesting a lure related to 'The Economist' and references the wkhtmltopdf tool, indicating it was likely generated programmatically. The primary malicious URL, https://ttraff.com/wix?keyword=the+economist+march+31+2018+pdf, is designed to redirect the user to further malicious content. The presence of numerous other PDF links suggests a link farm or SEO poisoning tactic.

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.com/wix?keyword=the+economist+march+31+2018+pdf
    • https://static.usrfiles.com/ugd/b8c837_25d91c7bdb5b46f9a90f6ebb338b124c.pdf
    • https://static.usrfiles.com/ugd/b8c837_f26783c5898343659938d719a5737507.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fa446c470eb4569818538220fc8a54d.pdf
    • https://static.usrfiles.com/ugd/b8c837_c11c106f5308404e8bcecb6ab144af0b.pdf
    • https://static.usrfiles.com/ugd/b8c837_e285629aa57b4869b8e57c127a89b030.pdf
    • https://static.usrfiles.com/ugd/b8c837_23b49f4d1d194ea6ab94de09e6916209.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_d25eb68ea7d8471b849bd6bd79ce90a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_d5ce18ad689d4910a3103047f983884a.pdf
    • https://cdn.shopify.com/s/files/1/0433/2155/7150/files/11053444345.pdf
    • https://cdn.shopify.com/s/files/1/0431/9136/9888/files/sadavezadafade.pdf
    • https://cdn.shopify.com/s/files/1/0436/6182/0054/files/98198855370.pdf
    • https://cdn.shopify.com/s/files/1/0429/6677/8009/files/dolemokilopepiz.pdf
    • https://cdn.shopify.com/s/files/1/0429/2742/3651/files/metro_sim_hustle_graphic_content.pdf
    • https://cdn.shopify.com/s/files/1/0429/5242/5631/files/83391793184.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_off0000650b.bin
09a97e578c9f763ef5271c2b2e2644bf295fd0cde9427485fbe3a7fc5c2a8602		 pdf-font-stream PDF embedded font (sfnt) at offset 0x650B 5996 bytes
font_01_sfnt_off00007937.bin
43ed72bcfc9a69cbf462080821ae21453ad7459f9c998fe600ccf9599947cfac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7937 15392 bytes

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