Malicious PDF — malware analysis report

Static analysis result for SHA-256 304aae09d4173852…

MALICIOUS

PDF

40.1 KB Created: 2020-07-29 17:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d128fa6f0ee6d148a6ddec15f559fbd0 SHA-1: 2b0e2aa43380ebc7bac9bb54a827e4c8e606db2c SHA-256: 304aae09d4173852a07032a0092416f9110a7d96421cfc7a363eab8ddb4c26e6
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it features a link farm with numerous external PDF links, suggesting an attempt to manipulate search engine results or distribute further content. The presence of a visual download button lure reinforces the malicious intent.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=loctite+5772+pdf
    • http://files.plannedparenthoodnlshc.com/uploads/1/3/1/4/131407944/suzamuj.pdf
    • http://files.drawingacrossthelines.org/uploads/1/3/1/4/131408170/dexobugeredug-kefire-mezulilebufew-gamejaxozekidud.pdf
    • http://files.oa-westjersey.org/uploads/1/3/1/1/131164456/5205486.pdf
    • http://files.brigitteyearman.com/uploads/1/3/2/6/132681438/wexiw_memavilajij_gusadaxagoj_titejaduded.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujipipokumamidepuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5311/files/24853665293.pdf
    • https://cdn.shopify.com/s/files/1/0441/3181/1480/files/leduworanapemimir.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.pdf
    • https://cdn.shopify.com/s/files/1/0431/8806/0321/files/pinam.pdf
    • https://cdn.shopify.com/s/files/1/0431/8062/1984/files/12649528493.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/93809845244.pdf
    • https://cdn.shopify.com/s/files/1/0431/1816/6167/files/96222953930.pdf
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/53725993773.pdf
    • https://cdn.shopify.com/s/files/1/0430/2772/6489/files/ruxavep.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/
    • https://cdn.shopify.com

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000600f.bin
b8c7274d331e3d52b9ca4e0e115c9961ab4409c5e003d7aa570ee774f3e442b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x600F 4592 bytes
font_01_sfnt_off00006fd6.bin
659b0161daf2debb43de7b98c52ca32904033333ebb35738a7381cb5b30dc81c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD6 10508 bytes

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