Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6d7aa609587240c…

MALICIOUS

PDF

43.1 KB Created: 2020-08-30 16:27:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d153ec6b2ef15df1d71e565171cca1a SHA-1: 2ab7eb997f32bcb5ec25968f9aa2b035d05e9d89 SHA-256: a6d7aa609587240c4ad9f902fe503aff6b80367d4a1a9c93c21206fd609e18d4
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.club/wix?keyword=bloomberg+new+energy+outlook+2018+pd'. This indicates an attempt to direct users to a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing its role as a lure. The presence of numerous other links, identified as a link farm, further supports a malicious intent, likely for phishing or malware delivery.

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.club/wix?keyword=bloomberg+new+energy+outlook+2018+pd
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/81094190195.pdf
    • https://cdn.shopify.com/s/files/1/0432/5572/6238/files/arabic_numbers_in_words_1-_1000.pdf
    • https://cdn.shopify.com/s/files/1/0437/8086/6197/files/tixinofijofum.pdf
    • https://cdn.shopify.com/s/files/1/0428/3524/7271/files/7794724290.pdf
    • https://cdn.shopify.com/s/files/1/0433/0648/3876/files/16294247788.pdf
    • https://cdn.shopify.com/s/files/1/0431/8206/3777/files/putefato.pdf
    • https://cdn.shopify.com/s/files/1/0441/1850/7672/files/r_kelly_tp2_album.pdf
    • https://cdn.shopify.com/s/files/1/0433/1801/8203/files/61285002009.pdf
    • https://cdn.shopify.com/s/files/1/0439/2730/6408/files/belijisekitagirulopenuli.pdf
    • https://cdn.shopify.com/s/files/1/0434/1963/1765/files/51881184689.pdf
    • https://cdn.shopify.com/s/files/1/0437/4642/7034/files/68428142026.pdf
    • https://cdn.shopify.com/s/files/1/0435/8540/5089/files/inoculation_process.pdf
    • https://cdn.shopify.com/s/files/1/0435/3074/8072/files/danagexinejone.pdf
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/68576394331.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_off000066f3.bin
8f5f9d7bc0ef0727fb771349fac494a7eb1b2a2a119552ed67d8b8250d45c64e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66F3 5860 bytes
font_01_sfnt_off00007aeb.bin
d0b3c5be6bbdeb2c4b7e25289e46f9b85f8134c28b36b98029a643af221d50a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AEB 10548 bytes

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