Malicious PDF — malware analysis report

Static analysis result for SHA-256 40c986cc1983d872…

MALICIOUS

PDF

43.4 KB Created: 2020-08-29 15:55:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98b8ad88547c2e40bb738c93f5bfa3d0 SHA-1: a1f4f37bbedc72d248e55c5ebe673111a3cce701 SHA-256: 40c986cc1983d8721875336ddbf0e0e9ce950b2a6e93754095e67dfe678f6bf7
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains text related to 'Sony vegas slideshow templates free' and the URL itself, suggesting a lure for users seeking such templates. The presence of numerous embedded links, many pointing to Shopify, further supports the SEO-based link farm tactic to obscure the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=sony+vegas+slideshow+templates+free
    • https://cdn.shopify.com/s/files/1/0428/1214/5830/files/98132854252.pdf
    • https://cdn.shopify.com/s/files/1/0431/5709/4559/files/nepunipatitukuw.pdf
    • https://cdn.shopify.com/s/files/1/0438/8644/4699/files/dark_souls_3_map_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/nujorirawilazidazoxazasa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6806/3895/files/luvifesasaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/1044/0859/files/40924384028.pdf
    • https://static.usrfiles.com/ugd/b8c837_acd2b21d711d485d93ff7233026187c3.pdf
    • https://static.usrfiles.com/ugd/b8c837_9db02affb4ae4a878405f589b83e5461.pdf
    • https://static.usrfiles.com/ugd/f4de5e_11a0dc057eb44efdbf9550e5d6b34780.pdf
    • https://static.usrfiles.com/ugd/b6edda_aad138c0d74f41bc84299c6137b0b6dd.pdf
    • https://cdn.shopify.com/s/files/1/0428/8079/4790/files/34333997238.pdf
    • https://cdn.shopify.com/s/files/1/0451/4159/0170/files/positive_emotions_list.pdf
    • https://cdn.shopify.com/s/files/1/0437/2588/1498/files/kedoduridanamefiwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/tidunat.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_off000069c5.bin
6ae37bd2ddf55835aeee2d4575b53494f24644ae0ef9e2a46e5a37f348431922		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69C5 5812 bytes
font_01_sfnt_off00007d7c.bin
71dd6fcf3374a482029fe0661ca3547701032adc8823c70f7a1fc99993b01893		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7C 10364 bytes

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