Malicious PDF — malware analysis report

Static analysis result for SHA-256 a32506f7715aa17f…

MALICIOUS

PDF

46.7 KB Created: 2020-08-31 02:18:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c9813c9a45092b27d32461d6f381908 SHA-1: faaa6033b55409e85b83d9acd88880935bc0cf9d SHA-256: a32506f7715aa17fa5051c687288f2ff6a841a8f76bd9468acc2715e602aff2f
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. This link, 'https://ttraff.club/wix?keyword=livingston+international+paps+cover', is likely the primary mechanism for delivering a malicious payload or directing users to a phishing page. The presence of a large number of external PDF links, while some are benign, suggests a link farm or SEO poisoning attempt, further supporting the malicious intent.

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.club/wix?keyword=livingston+international+paps+cover
    • https://static.usrfiles.com/ugd/60933b_a564b5281935400caacfa93017fcfac6.pdf
    • https://static.usrfiles.com/ugd/2ac701_e8a2ef01856a4617b8ae03ee9f256910.pdf
    • https://static.usrfiles.com/ugd/2ca09c_cdec6789e3c44a769c27e131d17a2fc5.pdf
    • https://static.usrfiles.com/ugd/eaf48f_31eed081bf254e54ab60549ce18a1ba5.pdf
    • https://static.usrfiles.com/ugd/15ebe2_8b11d4607bd64a13bd989963c2c83084.pdf
    • https://static.usrfiles.com/ugd/c3f88d_fb65ae25c6c9486eb7e5cd6b9177156c.pdf
    • https://static.usrfiles.com/ugd/b11f6d_91001940ae3a49b294270fdb48232a4c.pdf
    • https://static.usrfiles.com/ugd/d94ae5_ee3dbd6c6509444689dd7d8e2b687770.pdf
    • https://cdn.shopify.com/s/files/1/0433/9970/8821/files/53407351917.pdf
    • https://cdn.shopify.com/s/files/1/0438/1566/5826/files/bujemuvagalepise.pdf
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/pdf_form_submit_button_not_working_in_chrome.pdf
    • https://static.usrfiles.com/ugd/0dcf4b_5f585efd215b43c9a00fa62f45b8ed17.pdf
    • https://static.usrfiles.com/ugd/ca300b_f55361902d1e4455adaaf62068e1ecc6.pdf
    • https://static.usrfiles.com/ugd/b8c837_020fe300be4e4cbbadafe8ae2b3033d0.pdf
    • https://static.usrfiles.com/ugd/b444d4_8cccdedd1929441f829469788fa7e449.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/
    • https://static.usrfiles.com/ugd/eaf48f_31eed081bf254e54a

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f48.bin
904e129777c1406017f012dc92819ff7b0c1964a946f54a6d7cf8551567e305a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F48 5104 bytes
font_01_sfnt_off000080bf.bin
ab04c2d87362265726a77048c964cd9fdc8b3f4d2c19d3e848ea82418d2cc089		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80BF 14444 bytes

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