Malicious PDF — malware analysis report

Static analysis result for SHA-256 32374e45b39da671…

MALICIOUS

PDF

74.8 KB Created: 2020-08-21 20:29:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 673e93af64d3002f72e1e540b68e01fd SHA-1: be6564462e2ef102c436539490ea514f1d8c054b SHA-256: 32374e45b39da6714572e7b726fb190af1389bec1b51c1dd263b5fb71dc4a413
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=dibujarte+pdf+1'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0431/1970/6279/files/43656487624.pdf'. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the redirection attempt.

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=dibujarte+pdf+1
    • http://files.larrymcd.com/uploads/1/3/0/7/130775735/moxobilozesoponu.pdf
    • http://files.yizhixu.com/uploads/1/3/1/3/131398102/fisenizadak_redafex_mitutalojejid.pdf
    • http://sarexabut.learnesolglasgow.com/uploads/1/3/2/6/132695535/5172975.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/43656487624.pdf
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/sexonof.pdf
    • https://cdn.shopify.com/s/files/1/0452/5703/1842/files/graphic_design_portfolio_examples.pdf
    • https://cdn.shopify.com/s/files/1/0430/0190/5315/files/87212762959.pdf
    • https://cdn.shopify.com/s/files/1/0433/2791/4152/files/types_of_bandages_and_dressings.pdf
    • https://cdn.shopify.com/s/files/1/0433/5452/1758/files/fuxafisibepivufapanupes.pdf
    • https://cdn.shopify.com/s/files/1/0429/8250/6647/files/rodiwejuwufawuvabalo.pdf
    • https://cdn.shopify.com/s/files/1/0451/1966/8377/files/69528799454.pdf
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/bofifop.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c722.bin
c58491e69f9667a0c3d3eb28d75767b63a399afdc2a0eb237d79af806ceb5395		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC722 5092 bytes
font_01_sfnt_off0000d88b.bin
7aab424c0eb1a70d950eccbb5b1948974fe8fb1c611f98bfead2e2ce7c9cb657		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD88B 15400 bytes
font_02_sfnt_off00010930.bin
d9b012042df5fe8dc074c42eae0f7627b15178249d85eb70dc7afc452d134ec7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10930 16132 bytes

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