Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1b2accadefab21d…

MALICIOUS

PDF

40.1 KB Created: 2020-08-18 18:17:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a20f496dd23897b68faec10eef4568d SHA-1: da3c55d9e2444e83561fda8310a02ff979b8df62 SHA-256: d1b2accadefab21d23045d44e9e7d8054906d18e1596740b65c32a5659d8fc81
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=botanicula+free++full+version', suggesting a lure for free software. The presence of a malicious redirector indicates an attempt to lead the user to a site hosting further malicious content or phishing pages.

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.ru/pify?keyword=botanicula+free++full+version
    • http://vusol.caricaturesbysimon.com/uploads/1/3/1/4/131453284/eaae9.pdf
    • http://files.kengallucciocup.com/uploads/1/3/1/4/131453247/458958.pdf
    • http://files.demattee.com/uploads/1/3/1/1/131163620/cec0ba3f422.pdf
    • https://cdn.shopify.com/s/files/1/0440/9786/3832/files/nagetitasisebakilukit.pdf
    • https://cdn.shopify.com/s/files/1/0434/1373/3533/files/finuwupuwulesidebewapadov.pdf
    • https://cdn.shopify.com/s/files/1/0435/3346/7808/files/alligation_rule_in_maths.pdf
    • https://cdn.shopify.com/s/files/1/0434/5344/8358/files/59654922469.pdf
    • https://cdn.shopify.com/s/files/1/0438/2585/6672/files/ketogene_ernhrung_rezepte.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/vulofofowuvunagef.pdf
    • https://cdn.shopify.com/s/files/1/0430/0180/6997/files/70518950989.pdf
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/gelizo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6601/5395/files/5936445165.pdf
    • https://cdn.shopify.com/s/files/1/0432/0129/8594/files/93241990501.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_off00005f30.bin
bc2d531707c60282f04b2a64f72068f64a87f78e65e4871563c18e91f185dfe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F30 4984 bytes
font_01_sfnt_off00007033.bin
78440def52de9338f6b4aac8c79e24c8f8f65fc7e5e3acba70e743413c4526f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7033 10572 bytes

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