Malicious PDF — malware analysis report

Static analysis result for SHA-256 dca6ab8c7a960365…

MALICIOUS

PDF

45.0 KB Created: 2020-08-20 19:17:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44b00662216a0a2eea2facea820a1757 SHA-1: cf48f2a167e80a006f974e9ab5c7ef49cfde9347 SHA-256: dca6ab8c7a9603659aec9042d32135feab21a12e9cecc2578ecd4be2289e2eb5
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, specifically pointing to 'https://ttraff.cc/pify?keyword=royal+canin+labrador+puppy+food+feeding+guide'. This URL is designed to lure users under the guise of a puppy feeding guide. The document also contains a large number of embedded links, many pointing to Shopify, which is characteristic of SEO spam or link farm techniques used to distribute malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via the document's content and embedded links.

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.cc/pify?keyword=royal+canin+labrador+puppy+food+feeding+guide
    • http://files.theballoonmum.com/uploads/1/3/1/4/131454521/dowidazijisixop.pdf
    • https://cdn.shopify.com/s/files/1/0434/1697/7559/files/jidozumogumufamiwu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/roman_catholic_prayer_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/8541817763.pdf
    • https://cdn.shopify.com/s/files/1/0431/9644/8917/files/kewegipi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0379/6894/files/18244345186.pdf
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/71380528172.pdf
    • https://cdn.shopify.com/s/files/1/0435/3690/8439/files/bajozosefarami.pdf
    • https://cdn.shopify.com/s/files/1/0431/2589/9426/files/bible_quiz_kjv.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_off000059e8.bin
4bbf16bd47c39d809773314e175e441ce639a0aae6a0c7236fe3d95835861c1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59E8 5196 bytes
font_01_sfnt_off00006b9e.bin
ab473fe5f0bdf7a3eca7a8817bb0603fd98a0f3d1726fa169022fd9e683986d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B9E 14692 bytes
font_02_sfnt_off00009934.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9934 4324 bytes

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