Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd52dae5c5b7ecd7…

MALICIOUS

PDF

52.0 KB Created: 2020-08-31 00:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65b09f98c64f616f6e197a3fb9ec574b SHA-1: 8597853d8a3bc0a66383fce781558ced41da8d27 SHA-256: fd52dae5c5b7ecd77409d92ad7f5865f830680a58fc06659dc057e99a8954a5b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/wix?keyword=fundamentos+de+mercadotecnia+philip+kotler'. The document body, though heavily obfuscated, contains text related to marketing and the authoring application, suggesting a lure. No scripts were extracted from this sample.

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/wix?keyword=fundamentos+de+mercadotecnia+philip+kotler
    • https://static.usrfiles.com/ugd/10e3af_09dbf89e91364a719f9894c8b96c710a.pdf
    • https://static.usrfiles.com/ugd/d5415a_849e51bfdf4142fb8459adf6ed550932.pdf
    • https://static.usrfiles.com/ugd/ddb60a_ac120b64790448d6bd03f7fa65c8f28b.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c1127fae1fb4ab9bb9ec0952dfa2c52.pdf
    • https://static.usrfiles.com/ugd/e73fea_65350d36839b455e820351fa8dfdfd74.pdf
    • https://cdn.shopify.com/s/files/1/0437/8460/1752/files/batman_games_apkpure.pdf
    • https://cdn.shopify.com/s/files/1/0432/9262/2998/files/29454879708.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6561/files/delete_watermark_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3468/files/mavod.pdf
    • https://cdn.shopify.com/s/files/1/0435/2992/8863/files/jofis.pdf
    • https://cdn.shopify.com/s/files/1/0436/6378/6137/files/kadufobifukimuwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/2222/0439/files/how_to_delete_tumblr_blog.pdf
    • https://cdn.shopify.com/s/files/1/0434/4627/2162/files/quantitative_analysis_for_management_10th_edition.pdf
    • https://static.usrfiles.com/ugd/78c764_52ccad5a9eed4a4687a496062c53ca2b.pdf
    • https://static.usrfiles.com/ugd/b8c837_64e22d33b8e24ab081d2ae50c4621a43.pdf
    • https://static.usrfiles.com/ugd/5b9a87_ee292390ca9041fab0d4962434dcd04a.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_off00008e3f.bin
dac14a0f82f945f960fb280dfe313751c9e791ace624b823ad1c93446d8cd86f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E3F 5332 bytes
font_01_sfnt_off0000a02e.bin
6415e325ba31ca45f63d104a2564681fe7d4e26e8e691853dd184ec632df1889		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA02E 10104 bytes

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