Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeac62b743991daa…

MALICIOUS

PDF

42.7 KB Created: 2020-08-15 05:11:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 844d3a2f5b37a39b58e1743a455e02c6 SHA-1: 1ac99f9618943b14342ace461b6cf61e235afb1e SHA-256: eeac62b743991daa7e3e4dafe34e04abac6812664f503e4f1fd71e7c8b29db52
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=bleach+brave+souls+hack'. This URL is presented within the document body, suggesting a social engineering lure. The PDF also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm. The primary malicious IOC is the redirector URL, which likely leads to further 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.com/pify?keyword=bleach+brave+souls+hack
    • http://zusige.elliottforrest.com/uploads/1/3/0/9/130969306/843480.pdf
    • http://files.barnes1ststepft.com/uploads/1/3/2/6/132681891/zosowadugug.pdf
    • https://cdn.shopify.com/s/files/1/0429/6713/8470/files/urinary_catheterization_procedure.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3921/files/80298272495.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9219/files/10205681562.pdf
    • https://cdn.shopify.com/s/files/1/0434/1248/8348/files/how_to_cite_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/6862/8892/files/viwerokerasunelek.pdf
    • https://cdn.shopify.com/s/files/1/0440/6063/9384/files/discord_change_text_color.pdf
    • https://cdn.shopify.com/s/files/1/0432/8230/1094/files/37363213277.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/banobigi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/birch_tree_minecraft.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_off000059d6.bin
dd941ccd0a7fe4b6e53d09eed0d51fe982db339b505ebc94b6bd0ceb1ca2991b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D6 4848 bytes
font_01_sfnt_off00006a64.bin
206ed3980770704e8c48e9bfa99cf360103e22a271486e4eca56bde3ce152904		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A64 11300 bytes
font_02_sfnt_off00009084.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9084 4324 bytes

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