Malicious PDF — malware analysis report

Static analysis result for SHA-256 e79ba70286ebc30a…

MALICIOUS

PDF

60.0 KB Created: 2020-08-21 09:07:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f22752aba62b5d1161252f457fea036 SHA-1: 0d7e3b9d50435ed7ab1dc5325e62e13c300369f8 SHA-256: e79ba70286ebc30accf2e62708eb416be20ad9b56f98a95e654cb268a84ad571
128 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, pointing to 'ttraff.com'. It also exhibits characteristics of a PDF link farm, with numerous links, many hosted on Shopify, suggesting an attempt to game search engines or distribute content. The document body, though heavily obfuscated, contains text related to 'apta guidelines for physical therapy documentation' and the malicious redirector URL, reinforcing the lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

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=apta+guidelines+for+physical+therapy+documentation
    • http://gulozabo.mustangcreekcreations.com/uploads/1/3/1/6/131606490/nidoxezokisax.pdf
    • http://files.boonelakelady.com/uploads/1/3/1/0/131071256/4530704.pdf
    • https://cdn.shopify.com/s/files/1/0451/1324/5848/files/tyranid_codex_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0440/2518/4421/files/dilbert_the_knack_video.pdf
    • https://cdn.shopify.com/s/files/1/0429/0805/7759/files/using_mis_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0438/9748/7512/files/11991642584.pdf
    • https://cdn.shopify.com/s/files/1/0428/9249/2963/files/power_bi_interview_questions.pdf
    • https://cdn.shopify.com/s/files/1/0432/5595/5619/files/forever_living_products_aloe_vera_gel.pdf
    • https://cdn.shopify.com/s/files/1/0438/5108/8032/files/iterate_through_map_c.pdf
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/zufegupaxopoxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9017/3333/files/widusasezivizigimulagu.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_off0000ab7f.bin
0ee0e3a368dcd33c3f2ba99bfbf61465f05e7c31dbf979b30f2f3611b46554ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB7F 5660 bytes
font_01_sfnt_off0000be96.bin
b6069392d9076cfe6354deff58583d951a31ffb3e11774b0cf317045ea4328c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE96 10620 bytes

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