Malicious PDF — malware analysis report

Static analysis result for SHA-256 495955fc9f288a76…

MALICIOUS

PDF

55.5 KB Created: 2020-08-07 21:01:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8afefdd7530f532eff93146243729365 SHA-1: 638e6efda0c8a549aa624d870ea146e4acd00db7 SHA-256: 495955fc9f288a760fecfdb61fbaf9a0f0612f34399d2661cf1737106c6783d5
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a hotel brochure template. The PDF also contains a large number of external links, many pointing to Shopify, likely for SEO manipulation or to host further malicious content. The embedded URL in the document body further reinforces the malicious redirector attempt.

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=hotel+brochure+template+pdf
    • http://files.masjiduthman.org/uploads/1/3/2/7/132710601/63b276.pdf
    • http://woserese.piedmontncago.org/uploads/1/3/1/6/131606346/104a88dfae0.pdf
    • http://files.integrativehealthct.com/uploads/1/3/0/8/130813639/43c65e.pdf
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/barreras_administrativas_de_la_comunicacion.pdf
    • https://cdn.shopify.com/s/files/1/0434/3853/8904/files/83740456408.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/imgur_r_anal.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/2788901086.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdf
    • https://cdn.shopify.com/s/files/1/0428/7394/6275/files/all_basic_c_programs.pdf
    • https://cdn.shopify.com/s/files/1/0437/8266/8437/files/baxivi.pdf
    • https://cdn.shopify.com/s/files/1/0434/8903/4402/files/animus_possidendi.pdf
    • https://cdn.shopify.com/s/files/1/0439/7914/5374/files/pathfinder_beginner_box_character_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/memubenejal.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/elasticsearch_update_mapping.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_off00009b1b.bin
2314a81393005b76d47b9661eef52f373d7509d81298d0734f8076c40aabe9bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B1B 5320 bytes
font_01_sfnt_off0000acfc.bin
4f0be87df50be91f88f34d43cdb53b5117c888a21cebc17b275889894cef644f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACFC 10628 bytes

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