Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a63e8dd4218ad1b…

MALICIOUS

PDF

33.3 KB Created: 2020-08-18 14:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 816a5515fd6416278c41a76b711fe996 SHA-1: 43cff37af01ad49af7365203e7c05dc3a96d0ef9 SHA-256: 9a63e8dd4218ad1bb94b7c0ed1e2d6576c429d82f34287ba58e984301b57948e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.ru. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous links to PDFs hosted on cdn.shopify.com and other domains. The document body, though heavily obfuscated, contains the target URL, suggesting a lure related to 'Manor academy ofsted report'. The primary malicious URL is likely used to redirect users to a phishing page or a malware download site.

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.ru/pify?keyword=manor+academy+ofsted+report
    • http://juzetoz.rmcpsychconsult.com/uploads/1/3/0/8/130874493/sapos-sopiz-zuxutobalibo.pdf
    • http://files.pinkmousehouse.com/uploads/1/3/1/4/131455543/zojopi-vezizowet-melege-temagipumi.pdf
    • http://files.columbiarivercooperative.com/uploads/1/3/1/6/131606789/pirimixatejuj.pdf
    • https://cdn.shopify.com/s/files/1/0429/3728/6815/files/bawimejegu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/4738424585.pdf
    • https://cdn.shopify.com/s/files/1/0435/5771/6127/files/episode_guide_ncis_los_angeles.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.pdf
    • https://cdn.shopify.com/s/files/1/0430/0580/4698/files/estado_liberal_caracteristicas.pdf
    • https://cdn.shopify.com/s/files/1/0448/9094/7739/files/libro_el_criticon_baltasar_gracian.pdf
    • https://cdn.shopify.com/s/files/1/0430/8644/6746/files/17279530223.pdf
    • https://cdn.shopify.com/s/files/1/0434/8516/7766/files/viponenogawe.pdf
    • https://cdn.shopify.com/s/files/1/0454/7680/6808/files/functional_programming_in_java_book.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_off000044e7.bin
2113ff357386e838b8786c40e8204cdd6284a843b4e7271c226e2597993f75c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44E7 5376 bytes
font_01_sfnt_off00005725.bin
88fd4fa657783d31e3a1054a5518d4f8230618211f7b5c3873968cf4882b3943		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5725 9868 bytes

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