Malicious PDF — malware analysis report

Static analysis result for SHA-256 963b104e7378cd2b…

MALICIOUS

PDF

48.4 KB Created: 2020-08-29 20:53:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45d07f3a5a7438c8cecc5758bf86fd8c SHA-1: b28e47fd7f5985d3418eae8c5e1c62c005a18574 SHA-256: 963b104e7378cd2bb8896b7695dd0792accd669066f6d0d8afdf02fd00f0a90f
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=the+business+of+the+21st+century+pdf+in+hindi'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links to external PDFs. The document body, though heavily corrupted, contains fragments suggesting a business-related theme and the URL that triggered the redirector heuristic. No scripts were extracted from this sample.

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+business+of+the+21st+century+pdf+in+hindi
    • https://static.usrfiles.com/ugd/b8c837_3e75b790cbea4b9398d784f0834df93e.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ff7cb60e3b84a1db5fb9d9182173967.pdf
    • https://static.usrfiles.com/ugd/696b8a_64fb6779b6754a3db90dd66ce29a4f66.pdf
    • https://static.usrfiles.com/ugd/b8c837_19d6b2351b174b71a02d7582669cccff.pdf
    • https://static.usrfiles.com/ugd/b8c837_98fbcd487e8d4872953a609484692e11.pdf
    • https://static.usrfiles.com/ugd/b8c837_12aba08e840a499e9130b786897c4b04.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_6bf403c14727416fa8add0de0f50618e.pdf
    • https://static.usrfiles.com/ugd/b8c837_6bb486b5b5e848809d00e475fe324e00.pdf
    • https://static.usrfiles.com/ugd/76156b_bb34de89cd21404fb4b13c72ae012595.pdf
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/xebakekoxirapalovu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9020/7135/files/avery_template_5260.pdf
    • https://cdn.shopify.com/s/files/1/0431/7233/1675/files/free_astrology_compatibility_report_for_couples.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/tokyo_metro_line_map.pdf
    • https://static.usrfiles.com/ugd/738632_be4a6b46204f451aa2c8c852cf1fa1a2.pdf
    • https://static.usrfiles.com/ugd/ade4e6_9672cd82cfa7428a896633c1c1712f52.pdf
    • https://static.usrfiles.com/ugd/07e02c_77c6288d43df4625a41a2d4e409c57e8.pdf
    • https://static.usrfiles.com/ugd/b8c837_93ba3da61f764956aa760ba5357b868c.pdf
    • https://static.usrfiles.com/ugd/b8c837_ae20bc9037eb4992bae742c27a233fe3.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059fd.bin
e08b64fb8ab39dbba9d281459107cfd906e9862da6a13785d82aadb67c09a248
pdf-font-stream PDF embedded font (sfnt) at offset 0x59FD 5376 bytes
font_01_sfnt_off00006c40.bin
28f394eb7ecd9159d69fd268492fc68fc66e4aaea049f7874e1401bb8aae7704
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C40 9860 bytes
font_02_sfnt_off00008df9.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF9 16164 bytes
font_03_sfnt_off0000a34a.bin
e61ce85554df7674b8bab15c2b65e049e02dc30ac4fd85e9529e40ce3840f871
pdf-font-stream PDF embedded font (sfnt) at offset 0xA34A 4376 bytes