Malicious PDF — malware analysis report

Static analysis result for SHA-256 add6e37862849dd7…

MALICIOUS

PDF

38.3 KB Created: 2020-08-23 00:40:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45b77c4cc9f07109225c60686305dbb0 SHA-1: b95dc580e1949609227fcb10156606e416cbf7e0 SHA-256: add6e37862849dd70c9d28a0f242c64ac09c3a16e958fcf362584ed4d491c8e1
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=jemez+mountains+snow+report'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external PDF links, with the first identified as 'https://cdn.shopify.com/s/files/1/0430/8353/0407/files/kilabifixinux.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to external malicious content.

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=jemez+mountains+snow+report
    • http://files.hoolahoopgreetings.com/uploads/1/3/1/6/131637527/vuvag.pdf
    • http://dinelove.flockofart.com/uploads/1/3/0/8/130874104/botakila-sabufumaziwenu-pinejivutaf-pivigumegogiriv.pdf
    • http://sirifeno.norfolkbigdig.com/uploads/1/3/0/7/130776811/jarejemutesadoz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8353/0407/files/kilabifixinux.pdf
    • https://cdn.shopify.com/s/files/1/0435/7976/8995/files/specialit_e_brevetti_scout.pdf
    • https://cdn.shopify.com/s/files/1/0438/6455/5675/files/zukewanebuxapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/8375/0821/files/noxogonewir.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3534/files/act_2020_20_test_dates.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/xojevivotufozej.pdf
    • https://cdn.shopify.com/s/files/1/0434/6114/8836/files/sorajupozuwazedul.pdf
    • https://cdn.shopify.com/s/files/1/0430/9922/6279/files/louvre_hotels_group_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/jelejok.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92702877098.pdf
    • https://cdn.shopify.com/s/files/1/0434/9621/0594/files/tasinorasokepewajidekobe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/gufozakubokesetelufuvi.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_off00005982.bin
8124e45561ebf8d7e696251c8367f1c934fc870d96158878ea52669fd93cece7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5982 5064 bytes
font_01_sfnt_off00006abd.bin
84ec4fc9fd2afffe6c95fc19d7c021dcadbfd6dd43b1b6b4acad9f5fd29a898e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABD 9972 bytes

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