Malicious PDF — malware analysis report

Static analysis result for SHA-256 93d70b9a1ee5ceb6…

MALICIOUS

PDF

38.9 KB Created: 2020-08-22 09:48:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5601fbcce0ffc5ded18a7d3430c49bc3 SHA-1: 4da8667cd305dc23c88e3dbb4a204fa5b7641ac4 SHA-256: 93d70b9a1ee5ceb61ee0a02e52bde46928053d097aa0c2a458c29fb2ce4551a7
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 of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains references to a movie title and URLs, suggesting a lure to trick users into clicking malicious links. The primary heuristic indicates the PDF is a malicious redirector, and the presence of numerous external links further supports this. The file likely serves as a delivery mechanism for further malicious activity.

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=cannery+row+movie+free
    • http://wetumi.cornishluxuryretreat.co.uk/uploads/1/3/1/4/131406799/1231438.pdf
    • http://files.canadianclubmx.com/uploads/1/3/2/3/132302963/tixunamar-degiro-zuroxakogu-kufadurazaked.pdf
    • http://files.natanson-art.com/uploads/1/3/0/7/130739056/6445365.pdf
    • http://pazum.trangallan.com/uploads/1/3/1/6/131606339/ffdb97a63608.pdf
    • https://cdn.shopify.com/s/files/1/0436/1479/7981/files/qualis_capes_peridicos_2020.pdf
    • https://cdn.shopify.com/s/files/1/0451/5436/9690/files/29862558353.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0294/files/architectural_design_principles.pdf
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/23946874433.pdf
    • https://cdn.shopify.com/s/files/1/0437/5651/9585/files/57976242656.pdf
    • https://cdn.shopify.com/s/files/1/0453/2862/9915/files/warehouse_clerk_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/24456156676.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/72695924976.pdf
    • https://cdn.shopify.com/s/files/1/0452/6351/9906/files/wnyc_weekly_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/14636660658.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7064/files/62747123750.pdf
    • https://cdn.shopify.com/s/files/1/0431/8108/0725/files/88215586114.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_off00004d36.bin
afba2b485144c8e6ee0a0c895866c765501aeb9463ebd21d6242223bbef54dd5
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D36 4688 bytes
font_01_sfnt_off00005d1e.bin
03ea2275623ee27586100c1121375d5947de2f582a9c2bef98adfa453c3b3cd8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1E 10384 bytes
font_02_sfnt_off000080ac.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x80AC 4324 bytes