Malicious PDF — malware analysis report

Static analysis result for SHA-256 d55278c67eba5a18…

MALICIOUS

PDF

40.6 KB Created: 2020-08-25 20:02:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79ade715df54f1e1815104a4838bca16 SHA-1: 8f0f2552c9e33920b22a23933d5aa5ea9c2006f1 SHA-256: d55278c67eba5a18a8440014614ffa8151103f60cb1aec4a6e3920feaa143877
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation. Crucially, one of the links redirects to 'ttraff.com', a known malicious redirector, which is likely intended to deliver malware or lead to a phishing site. The document body contains text related to 'city car driving free download pc', a common lure for pirated software or malware.

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=city+car+driving+free+download+pc
    • http://files.amanapopcornandicecream.com/uploads/1/3/1/8/131856158/b68997ed371.pdf
    • http://files.mountainplayschool.com/uploads/1/3/1/4/131453062/26e8195a1c51.pdf
    • https://cdn.shopify.com/s/files/1/0430/1812/5465/files/veragemo.pdf
    • https://cdn.shopify.com/s/files/1/0465/1204/6230/files/65880105293.pdf
    • https://cdn.shopify.com/s/files/1/0433/9145/1294/files/bazogava.pdf
    • https://cdn.shopify.com/s/files/1/0431/9114/0512/files/fudotexanofufamamusi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7500/files/82834886581.pdf
    • https://cdn.shopify.com/s/files/1/0431/2675/1389/files/51599826036.pdf
    • https://cdn.shopify.com/s/files/1/0433/5045/8520/files/10502312892.pdf
    • https://cdn.shopify.com/s/files/1/0435/4991/7347/files/intel_high_definition_audio_driver.pdf
    • https://cdn.shopify.com/s/files/1/0429/8188/4067/files/wevoladibakaminibowus.pdf
    • https://cdn.shopify.com/s/files/1/0436/3993/1038/files/barclays_app_android_p.pdf
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/22632134388.pdf
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/zenanizo.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_off0000609c.bin
dd1c3a02ac020f923adbce0ef16502257b3b6bf77b25970259fbe2be69cd673a
pdf-font-stream PDF embedded font (sfnt) at offset 0x609C 5304 bytes
font_01_sfnt_off000072d4.bin
b616c38889d84b5711753c892a4c75bfef977c97286382204d84a142c7536545
pdf-font-stream PDF embedded font (sfnt) at offset 0x72D4 10232 bytes