Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f1eb64541a8abcb…

MALICIOUS

PDF

68.8 KB Created: 2020-08-29 16:38:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e0312813e12ca4713eaa9a665e81e67 SHA-1: a0571d727d36b345435b379aa6c6d3ebe1ac2a40 SHA-256: 2f1eb64541a8abcb689993d8ca4b2d03bcfe39fbbc4afb0437075288b3c30111
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document is designed to lure users to a potentially harmful website. The presence of numerous other links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. The document body, though heavily obfuscated, contains the same malicious URL.

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/wix?keyword=o+peixe+alimenta+e+crescer+apk+peixe
    • https://static.usrf
    • https://cdn.shopify.com/s/files/1/0434/4443/7144/files/16558820031.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/kekelijetikasasip.pdf
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/pistol_muzzle_flash.pdf
    • https://cdn.shopify.com/s/files/1/0434/5092/5223/files/food_quality_assurance_principles_and_practices.pdf
    • https://cdn.shopify.com/s/files/1/0430/8526/7097/files/emulator_android_for_pc_highly_compressed.pdf
    • https://cdn.shopify.com/s/files/1/0434/0717/9941/files/13758834664.pdf
    • https://static.usrfiles.com/ugd/b8c837_af6464475a5f4198af8e6c31fbcf5419.pdf
    • https://static.usrfiles.com/ugd/b8c837_07092c5bf4964275878e32ceb00ada4a.pdf
    • https://static.usrfiles.com/ugd/b8c837_8c8e367052d142e98e7ecee29edf5100.pdf
    • https://static.usrfiles.com/ugd/b8c837_985b2d103d964237bb4818afc9623b40.pdf
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/69141368493.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/39414490601.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_off0000cafb.bin
b3006bc9b7dcd75d27f841240ea92bad8d9fb5785b2d1ee8d51d7283e71ddd2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCAFB 5236 bytes
font_01_sfnt_off0000dcb0.bin
09d7b59393aa119a1e3723a3049817d6b2457ae249aa40ff6811bba319d67eca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB0 14160 bytes

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