Malicious PDF — malware analysis report

Static analysis result for SHA-256 559151059d041eef…

MALICIOUS

PDF

45.3 KB Created: 2020-08-20 12:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 36701aed34104c7afa2200232a5e9b4c SHA-1: 0bf4534bd02da6a840e0a0df679e3ff0703de86e SHA-256: 559151059d041eef645025ff7f1c75172b31c6d930e7daf78f3c92b5606a6005
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'garage sale pricing guide' and embeds multiple external links. One critical heuristic indicates a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same lure text and the malicious URL. The presence of a link farm suggests an attempt to distribute further malicious content or SEO manipulation.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=garage+sale+pricing+guide+australia
    • http://files.christopherpalmer.co.uk/uploads/1/3/2/3/132303077/9707717.pdf
    • https://cdn.shopify.com/s/files/1/0437/2863/4010/files/rutivinafaba.pdf
    • https://cdn.shopify.com/s/files/1/0431/2485/0842/files/awakening_the_heroes_within.pdf
    • https://cdn.shopify.com/s/files/1/0437/8089/8973/files/89968688107.pdf
    • https://cdn.shopify.com/s/files/1/0437/2817/5255/files/31791964733.pdf
    • https://cdn.shopify.com/s/files/1/0446/9473/2953/files/blockchain_definition.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/paxotaxazojulilinitulo.pdf
    • https://cdn.shopify.com/s/files/1/0435/9153/2699/files/43472041042.pdf
    • https://cdn.shopify.com/s/files/1/0437/5887/8872/files/92298247288.pdf
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/53055552873.pdf
    • https://cdn.shopify.com/s/files/1/0437/9957/6733/files/xofugajarasotu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1697/7559/files/wexexekononunuwibe.pdf
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/16833732765.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/64461049570.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_off0000724c.bin
c13f5d1da4da22abebd63ea827a6fa17923de7c7d3239844716e6cf2f7866f82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x724C 5272 bytes
font_01_sfnt_off0000844e.bin
532f384cf94e2ea73cc404e7747d9d3a91dee7c2b01dd1e6043b3e6026bc1e8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x844E 10532 bytes

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