Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a1b98cc237def1…

MALICIOUS

PDF

49.6 KB Created: 2020-08-29 22:43:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86b3e917a42d045e927a8968a377b3de SHA-1: 25879ae5a56f65cffc12d55e1749ef7a15dbf8bb SHA-256: 47a1b98cc237def148c04de0075d2930ecfbb58aa383067ade2d6b31fecc6ae1
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=classical+conversations+timeline+song+lyrics', which is likely the primary lure. The file's purpose appears to be directing users to malicious infrastructure.

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/wix?keyword=classical+conversations+timeline+song+lyrics
    • https://cdn.shopify.com/s/files/1/0433/6756/3418/files/galowi.pdf
    • https://cdn.shopify.com/s/files/1/0447/9241/4369/files/bofugijoxukanifoloxon.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/44742848870.pdf
    • https://cdn.shopify.com/s/files/1/0436/5615/1190/files/jurnal_tentang_boraks.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/bofigegele.pdf
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/86403224692.pdf
    • https://static.usrfiles.com/ugd/b8c837_09707cfa0bb54c12837234a613fb6263.pdf
    • https://static.usrfiles.com/ugd/b8c837_03d86b7417ca4d8ea362872ef1700ea5.pdf
    • https://static.usrfiles.com/ugd/3f0e57_d555029b997a4f93aff8fe843ed3737d.pdf
    • https://static.usrfiles.com/ugd/b8c837_e205eb3363e2408e819946be9afc4edc.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/86448914045.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdf
    • https://cdn.shopify.com/s/files/1/0450/3240/7198/files/angular_tutorial_tutorialspoint.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_off00008466.bin
6e5cb1165cc4c34261f7f7a49f62e50c55695e110fc9c4138b1b98d77af5aae3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8466 5188 bytes
font_01_sfnt_off000095fd.bin
5647097881f21677bf28bb8c351cb82a57fd151338a77c0ad2cc2674a9ffab77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95FD 10344 bytes

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