Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2bde09daa1736db…

MALICIOUS

PDF

37.0 KB Created: 2020-08-04 20:58:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75a7676a05630368a9712fe7b3f23a66 SHA-1: 5da1a3373ce4e5742b1ee605e66987fb8fb526a5 SHA-256: b2bde09daa1736dbdb042b888217c1e3e46fdae7c9457a47c567367374a4f6e3
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to a malicious redirector, specifically 'ttraff.ru', disguised with a lure related to 'beauty and the beast musical vocal score pdf'. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many hosted on Shopify. The primary malicious intent appears to be redirecting users to the 'ttraff.ru' URL, which likely serves further malicious content or phishing pages.

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=beauty+and+the+beast+musical+vocal+score+pdf
    • http://files.yourvitality.co/uploads/1/3/1/1/131164355/luzexulewokif.pdf
    • http://files.carlgroup.org/uploads/1/3/1/3/131398222/3502960.pdf
    • http://files.casacuerda.net/uploads/1/3/1/6/131606758/7779730.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7074967355.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/vuzetadewozaxadipiwaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.pdf
    • https://cdn.shopify.com/s/files/1/0450/8542/5829/files/argonautas_do_pacfico_ocidental_introduo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7147/0742/files/22377200006.pdf
    • https://cdn.shopify.com/s/files/1/0432/2797/1741/files/mumedu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8520/1561/files/38194921946.pdf
    • https://cdn.shopify.com/s/files/1/0440/8855/7718/files/new_god_flow_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0428/5110/6972/files/42109374411.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdf
    • https://cdn.shopify.com/s/files/1/0437/9413/7249/files/kovilemaretunibubupipig.pdf
    • https://cdn.shopify.com/s/files/1/0433/4993/4231/files/84270351811.pdf
    • https://cdn.shopify.com/s/files/1/0427/8163/8812/files/gufifirirumorowe.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_off000050a8.bin
a1adcb607bf4017e253a3e4ff4900cc32fd369d5aefc37caea183c711fed3b58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50A8 5744 bytes
font_01_sfnt_off00006410.bin
549bfb169ab2c58164161ba6d887236a77c510c7eb3335de4ce18c7ab0baa424		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6410 10228 bytes

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