Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a2d7fcc35c77ad1…

MALICIOUS

PDF

46.5 KB Created: 2020-09-04 17:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78b5cf2eec3f3406e682cc8f8a795410 SHA-1: ef020e6c8d80cb56e69874e81ea8806306c7974f SHA-256: 9a2d7fcc35c77ad11d42f2f00ff9127bf9976fefd1166859b5ad1a06b79908af
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm. One of the primary links directs to a redirector service, 'ttraff.me', which is flagged as malicious. This suggests the document is designed to lure users to malicious websites, likely for phishing or malware distribution, by obscuring the true destination through multiple redirects. No scripts were extracted, and the document body was heavily obfuscated.

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.me/pify?keyword=bookmark+manager+app+android
    • https://cdn.shopify.com/s/files/1/0436/8020/2905/files/gangster_jatt_music.pdf
    • https://cdn.shopify.com/s/files/1/0437/7441/0910/files/50289033178.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/jixafi.pdf
    • https://static.usrfiles.com/ugd/b8c837_0d3cc17852454d7e8de1d08a46563404.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e1947b7e04447b99c3da2920385052d.pdf
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/zojumik.pdf
    • https://cdn.shopify.com/s/files/1/0429/2696/4903/files/25197052101.pdf
    • https://cdn.shopify.com/s/files/1/0429/2077/1750/files/negozutajuzebelabolifig.pdf
    • https://static.usrfiles.com/ugd/b8c837_ccdd99dee19742eaaccc7bd74fa3b04f.pdf
    • https://static.usrfiles.com/ugd/10b11f_d5f6a3f6a0854c788cc4950e95401a88.pdf
    • https://static.usrfiles.com/ugd/e73fea_f9140ac2d4e84832a02516758ce11046.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_off00007869.bin
688bc5174e71071c5656c0fec905a2e2baec084c01988ff9bc266249278f6398
pdf-font-stream PDF embedded font (sfnt) at offset 0x7869 5180 bytes
font_01_sfnt_off000089f5.bin
e6cda96410b7a0edcdd2510e3ae1adf50e3e503e206ed7bd49ac6c08b25e0074
pdf-font-stream PDF embedded font (sfnt) at offset 0x89F5 10344 bytes