Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1d379cd789f4f29…

MALICIOUS

PDF

58.5 KB Created: 2020-08-31 00:40:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d6d4ec2022a1bed7dc1d14f5f2510f2 SHA-1: ae0fe356a60a5ba3abd20df189f22dbafa3f1c11 SHA-256: b1d379cd789f4f29dbbccf8d856fcc6fb822d76b4a013cd273a1f35f6889c36a
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Grand theft auto san andreas cheats superman' and a call-to-action phrase, suggesting a lure to trick the user into clicking the malicious link. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the link's malicious nature, and 'PDF_SEO_LINK_FARM' indicates a large number of outbound links, likely for SEO manipulation or to host further malicious content.

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/wix?keyword=grand+theft+auto+san+andreas+cheats+superman
    • https://cdn.shopify.com/s/files/1/0435/6761/2063/files/15288019699.pdf
    • https://cdn.shopify.com/s/files/1/0438/0291/9069/files/bangerz_tour_dvd.pdf
    • https://cdn.shopify.com/s/files/1/0439/3956/1630/files/levijigeror.pdf
    • https://cdn.shopify.com/s/files/1/0435/0682/7429/files/pixar_trivia_questions_and_answers.pdf
    • https://static.usrfiles.com/ugd/06497e_2dbdae080acc4e6b89428b30c3f593aa.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/siriramaxirosamuxufav.pdf
    • https://cdn.shopify.com/s/files/1/0434/9699/7030/files/74924085169.pdf
    • https://cdn.shopify.com/s/files/1/0430/9801/3845/files/kagadawejogud.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/32671686417.pdf
    • https://cdn.shopify.com/s/files/1/0440/1207/7206/files/air_hawk_pro_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/pejirapirebi.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_off00009945.bin
5eab0d1245d308d1785b69fb0bfe0b9925941bb9fe34f9db9f5b6031e351d2ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9945 5392 bytes
font_01_sfnt_off0000ab6d.bin
1421af44b0a3af82f2a8c8daa423459de71eb3f51cb29f2e2ff156e007fed8b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB6D 16068 bytes

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