Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca76092a6912b419…

MALICIOUS

PDF

36.7 KB Created: 2020-08-28 03:46:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6009bd05481d89f3d73841cf963edc51 SHA-1: 7c9f5401e52139a3d19087ba1e2024033ecb1173 SHA-256: ca76092a6912b419bfc89c9b2bea2ad24a9a791cab12bb6dc62fd76dba27facd
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript and links to a known malicious redirector infrastructure. The primary malicious URL is https://ttraff.com/pify?keyword=bpr40+programming+cable, which likely serves as a lure to download further malicious content. The document also contains a large number of benign-looking PDF links, likely for SEO manipulation to improve the redirector's visibility.

Heuristics 4

  • 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 JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/pify?keyword=bpr40+programming+cable
    • http://files.hfnyourvoice.uk/uploads/1/3/1/4/131482864/4828027.pdf
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/young_living_essential_oil_starter_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/8228/4194/files/managerial_functions_of_hrm.pdf
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/mexewujorofasinuge.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/fusegutorowob.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/42362670741.pdf
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/tinad.pdf
    • https://cdn.shopify.com/s/files/1/0429/1834/6915/files/boogie_woogie_stomp_albert_ammons.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdf
    • https://cdn.shopify.com/s/files/1/0436/9776/6553/files/tikotabewumeloleku.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/32803305139.pdf
    • https://cdn.shopify.com/s/files/1/0428/4760/0807/files/57555389652.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/tales_of_two_wastelands_mods.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_off000051a3.bin
2ba2bc78896c72698a3598edb31b108e7e56c30c44c273cfebf4a22d99f7197a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51A3 5496 bytes
font_01_sfnt_off0000643a.bin
f3fcd7a5351c57379363b501db4c6535f394c62af6ee7c97a4edbf0ff0e801fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x643A 10008 bytes

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