Malicious PDF — malware analysis report

Static analysis result for SHA-256 329f427b08171701…

MALICIOUS

PDF

40.2 KB Created: 2020-08-22 03:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e9f19ccbc96de791128c755350cd51d SHA-1: 32bb69a6979ae3396179a1b3bb259b1f6dca5dd2 SHA-256: 329f427b08171701db4dc98d75ddd8332ed0e4fac54654d15facd567e0e40f12
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Vlookup google sheets multiple columns' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm further indicates a malicious intent to distribute content or redirect users.

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/pify?keyword=vlookup+google+sheets+multiple+columns
    • http://bikun.badgirls.hu/uploads/1/3/1/6/131606875/3805847.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/87407198686.pdf
    • https://cdn.shopify.com/s/files/1/0433/5960/0798/files/fakudobobagerupus.pdf
    • https://cdn.shopify.com/s/files/1/0437/1300/3674/files/anorganick_chemie_housecroft.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/63100333051.pdf
    • https://cdn.shopify.com/s/files/1/0438/6983/1323/files/sdgs_agenda_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/danatorovanefosog.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_off00005fb2.bin
5b61d3963de267c33f8d1a8e5a9e3c67e2a9cc1a5c1aa8307c5cff5c8c479d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB2 5072 bytes
font_01_sfnt_off000070e8.bin
3dc664c440e9803ac5701269fab825cc61ef64dd1fd3e2d87c4a39f6036cd97b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E8 10460 bytes

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