Malicious PDF — malware analysis report

Static analysis result for SHA-256 b72f5c95d59f3d40…

MALICIOUS

PDF

40.4 KB Created: 2020-08-05 18:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e1b5bad6eb911aaf5377c63a5353803 SHA-1: edd4d9f679361410f12e1f15cbce972783bee1af SHA-256: b72f5c95d59f3d400629fe7287b42dbea724036af31961a14c4a7cae468edba5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link disguised as information about Achilles tendonitis treatment, which redirects to a malicious URL. The document also functions as a link farm, embedding numerous external links, many of which point to Shopify domains. The primary malicious link is https://ttraff.com/pify?keyword=achilles+tendonitis+treatment+pdf.

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=achilles+tendonitis+treatment+pdf
    • http://files.cpang-architects.com/uploads/1/3/1/3/131398144/5023264.pdf
    • http://files.bcindivisible.org/uploads/1/3/0/7/130739772/tazatuxubile.pdf
    • http://files.crazycowgirlentertainment.com/uploads/1/3/1/8/131856992/2c6307.pdf
    • http://files.campervangoodies.co.uk/uploads/1/3/1/4/131452903/fulowipiduj.pdf
    • http://files.khfreeman.com/uploads/1/3/2/3/132302870/310682.pdf
    • https://cdn.shopify.com/s/files/1/0434/4443/7144/files/gotalabubilig.pdf
    • https://cdn.shopify.com/s/files/1/0432/9016/5403/files/79820155920.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/16439200734.pdf
    • https://cdn.shopify.com/s/files/1/0435/4460/8920/files/sixofigumusetemen.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/74980741617.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/52676029620.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/xezoga.pdf
    • https://cdn.shopify.com/s/files/1/0433/4610/0377/files/65294398384.pdf
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/wizib.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/77220847729.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_off000061ea.bin
56b08c4231626f520a41a4cc2e913e181aaba97d3cf3945a254a1ed88d3a1bd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61EA 5384 bytes
font_01_sfnt_off0000740e.bin
05b88e9ce427a478cf9da82114b1c91a4ff390d62159514d61e2c8a2b4420e8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x740E 9636 bytes

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