Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa6740f973bc5b24…

MALICIOUS

PDF

38.7 KB Created: 2020-08-28 21:46:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86aab964190fa7a04bd3f4aec5a032ce SHA-1: e8c162d2d78d93f5d1a96ee3e9edc34b410363ac SHA-256: aa6740f973bc5b240dfb00591f5c062709f1d5def639ede4d0699d6874e0d2ef
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of external links, a technique commonly used to redirect users to malicious sites. One of the primary links, 'https://ttraff.com/wix?keyword=pathfinder+divine+anthology', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links, reinforcing the attack pattern.

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=pathfinder+divine+anthology
    • https://static.usrfiles.com/ugd/b8c837_e8842bec2de24456a8403725306eee8f.pdf
    • https://static.usrfiles.com/ugd/b8c837_a0d3364034134d359eb31f41ffd4f906.pdf
    • https://static.usrfiles.com/ugd/b8c837_abcf35407fab42aab17ac4e20d9a7c69.pdf
    • https://static.usrfiles.com/ugd/b8c837_ead31749629042c5bea6a0dfa8203bb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e8e1677c4d24c3b96da265f62ba50d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_8391d399524e49a5851cc79f6c8e9f19.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb29977c52a348d393c4cc9969d8b762.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2a9a602e43c4a968887a957642c7d41.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/51375508762.pdf
    • https://cdn.shopify.com/s/files/1/0429/2666/9987/files/wuzakenetazapavosezu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4383/1464/files/vizuvanidijaberatumuvas.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1031/files/88312891584.pdf
    • https://cdn.shopify.com/s/files/1/0431/0351/8882/files/98981387642.pdf
    • https://cdn.shopify.com/s/files/1/0437/6467/8807/files/10907993653.pdf
    • https://cdn.shopify.com/s/files/1/0431/6695/7722/files/nufozofirakuk.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_off00005979.bin
6fb7c3de060958aa779ac20e76642ae21e4b66e0bf86c3449b58856bec03d69e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5979 5152 bytes
font_01_sfnt_off00006b03.bin
0a352c75b0f9d2751ddcae21c36cd946e20fcf1d4245f3b5652e9d54012dc117		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B03 10232 bytes

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